Titan Legions, Pre-heresy and Heresy period

Here is the old article about the Legio Cybernetica, as well as Imperial Robots from the good ol' RT era:

Here is some visual reference for the most common Imperial robots seen on the battlefield:


Description of the Cataphract.


Cataphract Class schematic.


Colossus description.


Colossus in action.


Colossus robot destroying the foe.


Updated design of the Colossus class by Jes Goodwin. Illustration taken from the Gothic & The Eldritch: The Sketches of Jes Goodwin


Conqueror class description.


Conqueror vs. Crusader.


Crusader class description.


Updated sketch of Crusader class by Jes Goodwin. Illustration taken from the Gothic & The Eldritch: The Sketches of Jes Goodwin


Imperial robots.


Castellan class robot.


Updated sketch of Castellan class robot by Jes Goodwin. Illustration taken from the Gothic & The Eldritch: The Sketches of Jes Goodwin



Robot and Space Marine during an assault.


Tech-adept from Desert Lions Space Marine Chapter with robot cohort.


Tech-adept working on a Robot cortex.

Hope this brings back some memories!

Ahh, there's no school like the old school eh? Some good stuff there.

And although much of it is very old background, some of it clearly still stands. Collected Visions has a couple of examples of Castellan class robots (e.g. here) so clearly the background that the Castellan dates back to the heresy is still valid. In addition, it mentions Robot Maniples (as does A Thousand Sons) so maniples still seem to be the standard Robot formation in current background. A Thousand Sons also mentions Cataphracts being in use. Collected Visions has an example of 'Recon Robots' that have a similar configeration to the Crusader class, and also has the 'Seeker Class Robot', seemingly a new class from the old Rogue Trader variants.

In addition, much of the background on the part-organic robot brains still holds true - Mechanicum and The Kaban Project both make mention of 'wetware' for battle robots.

This post has been edited by The Red Sorcerer on Sep 29 2010, 12:46 PM

any one have any info on names and schemes for any of the knight houses?

Well, there's the knight house in Mechanicum. Apart from that, the old Titan Legions book (the one that was released with the MegaGargant and Imperator models) mentions:

House Krast: Fights with Legio Metallica. Primary colour blue. Heraldry - Quartered yellow and white/red
House Hyperion: Primary colour black. Heraldry - red with diagonal white stripe
House Lakar: Primary colour yellow. Heraldry - quartered design - blue, black and white checks
House Arakon: Primary colour green. Heraldry - yellow with green or black chevron

The layout for colour schemes shown on the examples was the majority of the knight painted in the primary colour, with the heraldic design represented on the left shin, left shoulder armor, and right carapace. The following example is Knight Paladins from House Krast - as can be seen there is considerable variation of the house heraldic design on each knight, but the primary colour remains the same.

I've just re-read Mechanicum and noticed a couple of titan legion names I've not seen elsewhere:

p282 "'And this scrapcode attack came just as Mortis walked on Ascraeus Mons?' 'We caught the first spurts of it, I think,' said Sharaq. 'It was fragmentary and dispersed, and Zeth's noospheric upgrades saved us from getting hit as hard as some others, but Legio Fortidus and Legio Agravides are gone. Their reactors went critical and took their entire fortress and a good chunk of the Erebus Montes with them.'"

Earlier in the novel it's mentioned that a lot of titans are with the expeditionary fleets, so it's possible/likely that these two loyalist legions still have titans off Mars.

p316 has a good bit about the loyalist Deathbolts being surprise attacked by the traitor Death Stalkers and losing 19 engines. The other info I've seen online mentions Maxen Vledig and a quote about "None will escape vengeance". (Although the name seems to have been stolen from a english/welsh myth about a king of the Britons in Roman times).

Not to necro, but sense we are workin on epic forces currently, is there anyway that we can update this thread to include which titan legions were known to operate with which Marines legions? Thanks

The majority of Titan Legions fought with the Astartes Legions at different times throughout the Great Crusade and Horus Heresy. One that Horus has throughout the first three books, Horus Rising, False Gods, and Galaxy in Flames is the Legio Mortis or Deaths Heads. Dies Irae is one of theirs.

Another is Legio Tempestus which fought with the Ultramarines and Guilliman during the opening moves of the Heresy. Only a handful of Titans are on Mars from that legion getting repairs done. I believe they also fought with the Salamanders during the early parts of the Crusade.

This is just from memory so please forgive any blatant mistakes.

I was hoping that someone might have more information about who worked with the Death Guard, as the only one I can remember is Dies Irae, when it was blasting apart their loyalist contingents. Thanks!

No problem! If you want to model a Titan Legion with the DG you could just use one of the legions on the first page. The majority of them have very little famous actions allowing you to come up with virtually an entire backstory and, in some cases, a color scheme.

As far as official background goes, we have the following examples of Titan Legions and MarineLegions fighting together:

Legio Vulcanum, operated with the Night Lords Legion during the purging of the Shi'Hu'Gal Dominion

Legio Tempestus, the bulk of the Legio is with Guilliman's crusade fleets when the Heresy breaks out.

Legio Mortis, bulk of the Legio is with Horus' crusade fleet between Horus' naming as Warmaster and beginning of the Heresy. As a result fight with Sons of Horus, Death Guard, World Eaters, Emperor's Children, Blood Angels in various conflicts.

Legio Xerxes, fought on Nurth, along with Alpha Legion involvement.

Legio Astorum, fought with the Thousand Sons against the orks of the Kamenka Troika.

Also, there are the Legions that fought in the Siege of Terra (with the BA, WS and IF on the loyalist side, and most of the Traitor legions on the Traitor side) and the battle for Mars (where the Imperial Fists were also involved on the Loyalist side).

What is the source of this one?

Imperial Armour 6 names one of their Warhounds that fought with the Night Lords.

Thought maybe would be a good time to update this thread. After doing extensive research on all of the known Titan Legions out there here is the list I've managed to compile:
Loyalist Titan Legions
* Imperial Eagles
* Imperial Fists (Titan Legion)
* Legio Agravides
* Legio Annihilator
* Legio Astorum (Warp Runners)
* Legio Astraman (Morning Stars)
* Legio Crucius (Warmongers)
* Legio Destructor (Steel Beasts)
* Legio Fortidus
* Legio Gryphonicus (War Griffons)
* Legio Honorum (Death Bolts)
* Legio Ignatium (Fire Wasps)
* Legio Invicta
* Legio Invigilata (Emperor's Guard)
* Legio Metalica (Iron Skulls)
* Legio Ordo Reductor
* Legio Ordo Sinister
* Legio Pallidus Mor (Pale Riders)
* Legio Tempestus
* Legio Ultima
* Legio Victorum (Foe Slayers)
* Nova Guard
Traitor Titan Legions
* Burning Stars
* Death Stalkers
* Fire Masters
* Iron Skulls
* Legio Damnatus (Warped Dogs)
* Legio Damnosus (Lords of Rain)
* Legio Lacrymea (Harbingers of Grief)
* Legio Magna (Flaming Skulls)
* Legio Mortis (Deaths Heads)
* Legio Tempestor (Storm Lords)
* Legio Vulcanum I (The Dark Fire)
* Legio Vulcanum II
* Legio Vulturum
* Tiger Eyes

So let's start with the Loyalist Legios shall we?

Imperial Eagles
Alignment during the Heresy: Imperial
Warcry: "Emperor's Enemies Beware!"
Homeworld: ?
Notable Actions: ?
Colour Scheme: ?
Famous Titans: ?
Source: Codex: Titanicus (1st Edition)

Imperial Fists (Titan Legion)

Alignment during the Heresy: Imperial
Warcry: ?
Homeworld: ?
Notable Actions: ?
Colour Scheme: ?
Famous Titans: ?
Source: Codex: White Dwarf Issue 108 (UK)


Legio Agravides
Warcry: ?
Homeworld: Mars
Notable Actions: Schism of Mars
Colour Scheme: ?
Famous Titans: ?
Background: At the outset of the Horus Heresy, the Warmaster Horus sent Regulus (an Adeptus Mechanicus representative who had already thrown in his lot with the Warmaster) to Mars to secure the tentative support of the Fabricator-General of the Adeptus Mechanicus, Kelbor-Hal. Regulus convinced the Fabricator-General of the Warmaster's resolve to support increased autonomy for the Mechanicus against the autocratic rule of the Emperor of Mankind. As a show of his appreciation for the Fabricator-General's support, Horus provided information to Kelbor-Hal that allowed the Tech-Priest to open a repository of forbidden knowledge known as the Vaults of Moravec, which the Emperor had ordered sealed. When this repository was reopened, there was all manner of forbidden arcane knowledge and weaponry that had obviously been tainted by the corrupting influence of Chaos. Soon the corruption spread throughout the forges and temples across the Red Planet as scrap code -- Chaos-contaminated digital source code that was infected with an arcane computer virus. The scrap code infested the logi-stacks and Cogitator (computer) archives of the Adeptus Mechanicus, causing literal Chaos to emerge in any Cogitator system that was networked to one of its infected counterparts. The Fabricator-General and his Dark Mechanicum allies used this disruption to marshal the strength of their forces, intent on bringing the rule of Mars firmly under their control. Infected by this vicious scrap code, the Titans of Legio Agravides and the Legio Fortidus met their end when their reactors went critical and exploded, destroying their fortresses and eliminating these once-proud Titan Legions from the roster of Loyalist forces. In later years, this night would become known in Mechanicus legends as the Death of Innocence.
Source: Mechanicum pp. 173, 245

Legio Annihilator
Alignment during the Heresy: Imperial
Warcry: ?
Homeworld: ?
Notable Actions: Defense of Megyre (995.M41)
Colour Scheme: ?
Famous Titans: ?
Background: Little is known of the origins of the Legio Annihilator Titan Legion except of their actions during the valiant defense of the Forge World of Megyre in 995.M41 from the Tyranids Hive Fleet Jormungandr. It is assumed that the Legio Annihilator was itself nearly annihilated. Their current status since this campaign is unknown.
Source: Codex: Tyranids (5th Edition), p. 27

Legio Astorum (Warp Runners)

Alignment during the Heresy: Imperial
Warcry: ?
Homeworld: Lcuius (Forge World) - Segmentum Obscurus
Notable Actions: Kamenka Troika Campaign (Unknown.M31) - Sometime during the middle years of the Great Crusade, the Legio Astorum fought alongside the Thousand Sons Legion and a Lifehost of Pan Pacific Eugenians drawn from the Imperial Army. The Emperor had issued the writs of war commanding this combined Imperial task force to undertake the difficult task of driving the savage Greenskin menace from the three satellite planets (collectively known as the Kamenka Troika) of the world of Kamenka Ulizarna -- a world originally claimed by the Mechanicum of Mars.
Battle of Tallarn (Unknown.M31) - Fought on the world of Tallarn against a force of Iron Warriors and Traitor Titans from their hated enemies - the Legio Mortis (Deaths Heads).
Unrecorded Engagement (Horus Heresy M31) - An unrecorded engagement involved the Warp Runners and the destruction of a combined Chaos battleforce comprised of Emperor's Children Chaos Space Marines and Titans from the rebel Tiger Eyes Traitor Titan Legion.
Struggle for Nycron (Unknown.M41) - This was a little known engagement that the Legio Astorum was credited for taking part in.
Siege of Vraks (813-830.M41) - During the infamous Siege of Vraks, the Legio Astorum Titan battlegroup provided the Imperial 88th Siege Army with its heaviest armour and firepower. Deploying 22 Titans of the Reaver and Warhound classes, the commitment of this battlegroup in support of the 12th Line Korps was the decisive factor in breaking through the inner defence lines during the Kagori offensive on Vraks Prime.
13th Black Crusade (999.M41) - When the Forces of Chaos assaulted the world of Cadia during the 13th Black Crusade in 999.M41, the Legio Astorum was one of the Loyalist Titan Legions of the Collegia Titanica to help in the defense of that beleaguered Imperial Fortress World. The Warp Runners fought in multiple campaigns during this Black Crusade, including Amistel Majoris and Demios Primary
Colour Scheme: Blue with gold. The older colour scheme was blue with orange flame patterns.
Legion Symbol: Black eclipse symbol on a field of blue.
Famous Titans:
*[Canis Vertex - A Warlord-class Titan that fought during the Great Crusade alongside the Thousand Sons Traitor Legion in the Kamenka Troika Campaign.
*Fortunata Imperiatrix - Reaver-class Titan that fought during the Horus Heresy at the Battle of Tallarn.
*Inviglia Alpha - Reaver-class Titan, first to fall to the guns of the Legio Vulcanum Traitor Titan Legion during the Siege of Vraks. Standing defiantly, the blasted and scorched war machine stood like a silent sentinel for the duration of the war.
*Spirit of Imperial Victory - Titan that fought during the Horus Heresy at the Battle of Tallarn.
Notable Personnel:
* Rand Drauca - Ancient and venerable High Princeps of the Reaver-class Titan Praetorian, during the Siege of Vraks. He led the Legio Astorum battlegroup that fought during the Siege of Vraks, which was composed of 10 Reaver-class and 12 Warhound-class Titans
* Kask - First Princeps of the Titan Fortunata Imperiatrix during the Battle of Tallarn
* Talon - Princeps of the Legion with over 100 confirmed kills during the Battle of Tallarn
* Silberman - Princeps of the Legion who was shot and killed by a sniper during the Battle of Tallarn
* Marnoc (Successor of Princeps Silberman) - Princeps of the Legion during the Battle of Tallarn.
* Toal - Moderatus of the Legion during the Battle of Tallarn
* Hazan - Moderatus of the Legion during the Battle of Tallarn
* Warden - Moderatus of the Legion during the Batle of Tallarn
* Kurtz - Warhound-class Titan Princeps during the Battle of Tallarn
Background: The Legio Astorum is an ancient and honoured Legion based upon the Forge World of Lucius, located in the Segmentum Obscurus. The Warp Runners fought throughout the Great Crusade and still retain a number of Titans blessed by the Emperor of Mankind himself. Later, the Legion fought throughout the darkest days of the Horus Heresy, and participated in numerous engagements including the Battle of Tallarn. Legend has it that a battlegroup of Legio Astorum Titans was present at the defence of the Emperor's Palace during the Battle of Terra and ever since those dark days of the Great Betrayal, the Warp Runners have continued to faithfully serve the Emperor and His Imperium.
Source:
* A Thousand Sons (Novel) by Graham McNeill
* Codex: Eye of Terror (3rd Edition)
* Codex: Titanicus (1988), pp. 4, 6-7, 9-10, 14, 21, 29, 32, 34, 49
* Imperial Armour Volume Six - The Siege of Vraks - Part Two, pp. 42-43, 46-48, 52-53, 60, 112-113, 118, 120-123
* Imperial Armour Volume Seven - The Siege of Vraks - Part Three, pp. 126, 161


Legio Astraman (Morning Stars)

Alignment during the Heresy: Imperial
Warcry: ?
Homeworld: Graia (Forge World)
Notable Actions: ?
Colour Scheme: Green, Blue and Yellow; decoration in white and black
Famous Titans: ?
Background: Based upon the Forge World of Graia in the Segmentum Tempestus. There is very little information in Imperial records about this obscure Titan Legion.
Source: White Dwarf Issue 108 (UK)


Legio Crucius (Warmongers)
Alignment during the Heresy: Imperial
Warcry: ?
Homeworld: Ryza (Forge World)
Notable Actions: Third War for Armageddon
Colour Scheme: ?
Famous Titans: ?
Background: Based upon the Forge World of Ryza located in the Segmentum Solar. Ryza is renowned for the manufacture of plasma reactor and magnetic containment field technology. Once, at some point in its history, it was unsuccessfully invaded by Orks. There is very little information in Imperial records about this obscure Titan Legion. Most notable action was during the Third War for Armageddon. Ork Warlord Ghazghkull Mag Uruk Thraka launched a second and even more massive Ork WAAAGH! to conquer the Imperial world of Armageddon in 998.M41. During a ten day battle which was one of the most fierce of the Third War for Armageddon that raged over the Diabolus factory complex, Titans from the Legio Crucius engaged the Gargants of Warlord Burzuruk and Warlord Skarfang. Six Titans and eight Gargants were utterly destroyed in the fighting and many others needed months of repairs before they could fight again. The Diabolus complex was wrecked during the battle, its foundries and machine shops blasted apart or crushed underfoot by giant fighting machines.
Source:
* Adeptus Titanicus (2nd Edition)
* Epic: Armageddon, p. 102
* Imperial Armour Volume One, p. 8
* White Dwarf Issue 142, p. 34
* White Dwarf Issue 181, p. 24
*Third War for Armageddon Worldwide Campaign

Legio Destructor (Steel Beasts)
Alignment during the Heresy: Imperial
Warcry: "Big Death, Big Death, BIG DEATH!"
Homeworld: Accatran (Forge World), Ultima Segmentum
Notable Actions: ?
Colour Scheme: ?
Famous Titans: ?
Background: The Steel Beasts are one of the Imperium of Mankind's largest Titan Legions, comprising over 100 Titans of all classes. This is unsurprising as the Legio Destructor’s home Forge World of Accatran, which is located in the Ultima Segmentum, lies within a hundred light years of the Wheel of Fire and at the very edge of the Ork Empire of Charadon. Led by their eccentric Grand Master Thaedius Wilson the Legio Destructor have sallied forth to stave off numerous Ork WAAAGH!s issuing from the Wheel of Fire or the Charadon Empire. Consequently, the Legion spends much of its time building up its strength to resist the next avalanche of maniac Ork warriors and war machines. It is murmured in some areas of the Adeptus Mechanicus that the constant exposure to Ork attacks has made the Legio Destructor increasingly "Ork-like" in its outlook and behaviour, particularly in its attitude to combat. The Princeps and crews of the Legio Destructor hunger for battle with an unusual exuberance. So far this thirst for battle has been viewed as a useful attribute, particularly against foes other than Orks who find the Legion a highly unsettling opponent. Even the Fabricator General of Mars expressed surprise when he first learned that this Legion had outfitted their war machines with amplifiers so that they could reply to the Orks’ war cries with their Legion's own somewhat simple-minded battle chant.
Source:
* Adeptus Titanicus II
* Imperial Armour Volume One, p. 8
* Mechanicum (Novel) by Graham McNeill
* Titan Legions (2nd Edition), p. 10

Legio Fortidus
Alignment during the Heresy: Imperial
Warcry: ?
Homeworld: Mars
Notable Actions: ?
Colour Scheme: ?
Famous Titans: ?
Background: At the outset of the Horus Heresy, the Warmaster Horus sent Regulus (an Adeptus Mechanicus representative who had already thrown in his lot with the Traitors) to Mars to secure the tentative support of the Fabricator-General of the Adeptus Mechanicus, Kelbor-Hal, for Horus' rebellion. Regulus convinced the Fabricator-General of the Warmaster's resolve to support increased autonomy for the Mechanicus against the autocratic rule of the Emperor of Mankind. As a show of his appreciation for the Fabricator-General's support, Horus provided information to Kelbor-Hal that allowed the Tech-Priest to open a repository of forbidden knowledge known as the Vaults of Moravec, which the Emperor had ordered sealed.
When this repository was reopened, there was all manner of forbidden arcane knowledge and weaponry that had obviously been tainted by the corrupting influence of Chaos stored within. Soon the corruption spread throughout the forges and temples across the Red Planet as scrap code -- Chaos-contaminated digital source code that was infected with an arcane computer virus -- infested the logi-stacks and Cogitator (computer) archives of the Adeptus Mechanicus, causing literal Chaos to emerge in any Cogitator system that was networked to one of its infected counterparts. The Fabricator General and his Dark Mechanicum allies used this disruption to marshal the strength of their forces, intent on bringing the rule of Mars firmly under their control. Infected by this vicious scrap code, the Titans of Legio Fortidus and Legio Agravides met their end when their reactors went critical and exploded, destroying their fortresses and eliminating these once-proud Titan Legions from the roster of Loyalist forces. In later years, this night would become known in Mechanicus legends as the Death of Innocence.
Source: Mechanicum (Novel) by Graham McNeill

Legio Gryphonicus (War Griffons)

Alignment during the Heresy: Imperial
Warcry: ?
Homeworld: Gryphonne IV (Forge World) - Presumed destroyed by Hive Fleet Jormungandr
Notable Actions: Defense of Gryphonne IV, 13th Black Crusade
Colour Scheme: Dappled Grey Camouflage Pattern with Yellow or Gold
Famous Titans: ?
Background: The Legio Gryphonicus take its name from the Forge World of Gryphonne IV, located in the Segmentum Tempestus. It can trace its lineage to the bygone days of the Great Crusade. During the Horus Heresy the Legio fought in the name of the Emperor of Mankind against the Forces of Chaos and earned battle-honours on many worlds across the galaxy. When Gryphonne IV was threatened by the approach of the Tyranid Hive Fleet Leviathan in 997.M41, the Adeptus Mechanicus refused to abandon this important Forge World to Exterminatus. Isolated and alone, and left for dead in an abandoned star system, the Legio prepared for war. Before the arrival of the Hive Fleet, Gryphonne IV boasted some of the finest defences of any Imperial world within the southern reaches of the galaxy. Gryphonne IV's War Griffons Titan Legion was feared for its world-breaking firepower and its Skitarii legions, whom were envied across the Adeptus Mechanicus for their discipline and precision. Yet, it was not enough to halt the Tyranid onslaught. The Skitarii were annihilated and devoured by waves of inexhaustible Hormagaunts and their Titan Legions torn asunder by Tyrannofexes and Tyranid Bio-Titans. Gryphonne IV was ever after a Dead World -- a grim testament to the folly of hubris and pride. The Legio Gryphonicus was presumed to be destroyed in the conflict, but later appeared during the 13th Black Crusade, to help augment Imperial forces with an entire Legio of war engines.
Source:
* Adeptus Titanicus
* Codex: Eye of Terror (3rd Edition), p. 16
* Codex: Tyranids (5th Edition), p. 28
* Imperial Armour Volume One, p. 8


Legio Honorum (Death Bolts)

Alignment during the Heresy: Imperial
Warcry: ?
Homeworld: Stygies VIII (Forge World), Ultima Segmentum
Notable Actions: Schism of Mars
Colour Scheme: Red and Gold; decoration in Blue and Silver
Famous Titans: ?
Background: The home of the Legio Honorum lies within the Vulcanis System upon the Forge World of Stygies VIII in the Ultima Segmentum, a large moon orbiting a massive ringed gas giant on the outer fringes of the star system.
Stygies VIII was once home to two Titan Legions, the 1st and 2nd Legios Vulcanum. When the Horus Heresy turned into an open rebellion, a group of Chaos Cultists seized control of the Forge World’s manufactorum facilities. A small group of Loyalists valiantly defended the planet's primary Temple of Knowledge in a prolonged siege against the predations of the Heretics and their deadly war machines. Expecting to die, the Loyalists were trapped and alone, but their liberation came on the thirty first day of the siege in the form of the graceful Eldar Titans and hundreds of Jetbikes from the Eldar Craftworld of Saim-Hann, who smashed the servants of Chaos. When the Horus Heresy ended, both of Traitor Titan Legions of Stygies VIII fled into exile within the Eye of Terror. Stygies VIII then became home to a third Titan Legion, the Legio Honorum.

During the open days of the Horus Heresy when civil war erupted on the red planet, Titans of the Death Bolts were involved in the opening volleys of the war. Along the borders of the Lunae Palus and Arcadia regions, what had previously been confined to heated debate, erupted into outright warfare as Princeps Ulriche of the Death Stalkers unleashed his engines upon the fortress of Maxen Vledig’s Death Bolts. Caught by surprise, the Death Bolts lost 19 engines in the first hour of battle, before withdrawing into the frozen wastes of the Mare Boreum and seeking refuge in the dune fields of Olympia Undae. Their calls for reinforcement went unanswered, for all of Mars tore itself apart as the plague of war spread across the planet in a raging firestorm.
Source:
* Adeptus Titanicus (1st Edition)
* Imperial Armour Volume One, p. 8
* Mechanicum (Novel) by Graham McNeill

Legio Ignatium (Fire Wasps)

Alignment during the Heresy: Imperial
Warcry: ?
Homeworld: Mars
Notable Actions: Sarosh - A planet initially conquered and subdued by the Dark Angels Legion of the 4th Expeditionary Fleet during the Great Crusade. A demi-Legion of Titans from the Fire Wasps was sent to Sarosh to crush any last pockets of resistance, thereby ensuring compliance of the planet; Schism of Mars; Battle of Terra; Third War for Armageddon, 13th Black Crusade
Colour Scheme: Black and Red; decoration in Yellow and Black
Famous Titans: Imperious Prima - A Warmonger-class Titan dating from before the foundation of the Imperium. The Imperious Prima was involved in the valiant defence of the Imperial Palace during the Battle of Terra
Background: The Legio Ignatium is one of the oldest and most esteemed Legions within the Collegia Titanica. The Legion fought throughout the Great Crusade and still retains a number of Titans blessed by the Emperor of Mankind himself at that time. Later, the Legion fought throughout the darkest days of the Horus Heresy, defending the Imperial Palace during the Battle of Terra against the insurmountable hordes of daemons and Traitors that the Warmaster Horus had brought to bear. Innumerable individual tales of personal heroism and individual sacrifice survive from that time and the Fire Wasps have more than their share. To this day the Legio Ignatium is the only Titan Legion granted the singular honour of guarding the Emperor’s Throne Room, where the Master of Mankind is interred within upon the sacred Golden Throne.

After the siege of the Imperial Palace was broken the Legio Ignatium went on to fight in most of the major campaigns of the Great Scouring, cleansing Imperial worlds of the Chaotic taint of the Traitors. The Legion fought in the mighty conflicts on Paramar V and in the Tallarn System as it strove to drive the Traitor Titan Legions back. In these long and bloody campaigns the Princeps of the Fire Wasps came to know and hate with an abiding passion the Legio Mortis, old rivals which had now turned to dark heresy and foul worship of the Chaos Gods. It was the Legio Mortis who breached the walls of the Emperor’s Imperial Palace, and it was the Deaths Heads Scout Titans who had terrorized and systematically destroyed the populations of a dozen hive cities on Paramar and Tallarn. The flames of hatred still burn hot and bright in the hearts of the Legio Ignatium – and one day a reckoning will be made against the remaining Titan Legions amongst the Forces of Chaos.
Source:
*Adeptus Titanicus (1st Edition)
*Codex: Eye of Terror (3rd Edition), p. 16
*Titan Legions (2nd Edition)
*Horus Heresy: Collected Visions (Background Book)
*The Descent of Angels (Novel) by Mitchel Scanlon
* Mechanicum (Novel) by Graham McNeill
*Third War for Armageddon Worldwide Campaign



Legio Invicta
Alignment during the Heresy: Imperial
Warcry: ?
Homeworld: Mars
Notable Actions: War of Lochrisus (412.M35) - The War of Lochrisus (also known as Execution K494103) was the first campaign conducted on the world of Oreste by the Legio Invicta. This was a rare circumstance in which the Legio disobeyed an Imperial edict. Warmaster Gallivant ordered the Legio Invicta to the world of Shackropal, to stem a swarming by the xenos Lethids. Princeps Maximus Pietor Gearhart refused, claiming it would be a waste of his war engines' time and materiel. The Shakropal sun went nova the next year, and the Lethids were immolated without need of Imperial intervention. Instead, Gearhart chose to disobey the Warmaster in direct violation of orders to help the beleaguered Forge World of Oreste. Their decision proved to be the correct one, as they saved that Forge World from the encroaching Forces of Chaos. ; Beltran Cluster Persecution (771-779.M41) - The Beltran Cluster Persecution was an eight-year-long campaign (seven years of actual combat) executed against the Eldar in the Beltran Cluster. The campaign was a success but the Legio Invicta suffered the loss of 8 Titans to the subtle, graceful Titans of the Eldar. ; Persecution of Warmaster Hengis (741.M41) - Once again the Legio countermanded an Imperial edict when their Princeps Maximus was forced to disobey the clinically insane Imperial Warmaster Hengis on Talphus VII. The Legio Invicta were ordered, eventually, to annihilate the insane Warmaster and the forces that followed him. This Imperial action against one of the Emperor's own was kept quiet and all records of it were kept sequestered within the Imperial archives by order of the Inquisition. ; Defence of Orestes (779.M41) - The Defence of Orestes was the second campaign conducted by the Legio Invicta. En route to take part in the Sabbat Worlds Crusade, the Legio once again came to the aid of their fellow Adeptus Mechanicus military units to help defend the Forge World of Orestes from a large force of Traitor Titans. The Legio provided 49 Titans plus a Skitarii force in support of Orestes' defence from the Forces of Chaos. Titans from the lauded Legio Tempestus provided a token force but they were not at full strength, and were barely able to match the enemy forces unleashed upon Orestes. The Warmaster’s constant demands had drained the Orestes Forge of resources and units, leaving them weak in the face of the Chaotic attack. To make matters worse, during the campaign several Orestes Magi attempted sedition against the Imperial Planetary Governor, forcing the Legio Invicta to chose sides. Bound by their sacred oaths to the Emperor and the Imperium, inevitably, the Legio chose to support the Imperial Governor and forced the Orestes Magi to recant their attempt at rebellion.
Colour Scheme: ?
Famous Titans:
* Ajax Excelsus - A Warlord-class Titan of the Legio Invicta
* Cour Valant - A Warlord-class Titan of the Legio Invicta
* Divinitus Monstrum - A Warlord-class Titan of the Legio Invicta
* Dominatus Victrix - A Warlord-class Titan of the Legio Invicta
* Invictus Antagonistes - A Warlord-class Titan of the Legio Invicta
* Sicarian Faero - A Warlord-class Titan of the Legio Invicta
* Philopos Manix - A Reaver-class Titan of the Legio Invicta
* Lupus Lux - A Warhound-class Titan of the Legio Invicta
* Martial Nox - A Warhound-class Titan of the Legio Invicta
* Morbius Sire - A Warhound-class Titan of the Legio Invicta
* Raptus Solemnus - A Warhound-class Titan of the Legio Invicta
Background: There is very little information in Imperial records about this Titan Legion's founding or from what world they hail from.
Source: Titanicus (Novel) by Dan Abnett

Legio Invigilata (Emperor's Guard)
Alignment during the Heresy: Imperial
Warcry: ?
Homeworld: Voss Prime (Forge World) , Segmentum Solar
Notable Actions: Third War for Armageddon (998.M41)
Colour Scheme: ?
Famous Titans: Emperor's Shield - Warhound-class Titan that participated in the Laiden Offensive. The Emperor's Shield achieved the highest kill-ratio of any Imperial Titan during the offensive. Its most notable kill included the Chaos Reaver-class Titan, Butcher's Mirth.
Background: The Emperor's Guard hail from the Forge World of Voss Prime, located in the Segmentum Solar. This is the Forge World closest to the Armageddon System. There is very little information in Imperial records about this Titan Legion's founding.
Source:
*Helsreach (Novel) by Aaron Dembski-Bowden
*Imperial Armour - Volume One, p. 8
*Titanicus (Novel) by Dan Abnett
*Warhammer 40,000 Apocalypse (Rulebook), p. 125
*Third War for Armageddon Worldwide Campaign

Legio Metalica

Alignment during the Heresy: Imperial
Warcry: ?
Homeworld: Metalica (Forge World) , Ultima Segmentum
Notable Actions: Second War for Armageddon (941.M41), Third War for Armageddon (998.M41), 13th Black Crusade (999.M41)
Colour Scheme: Red, White, Black & Yellow
Famous Titans: ?
Background: The Legio Metalica are veterans of centuries of conflict, predating even the Unification Wars of Terra and the Great Crusade. The Iron Skulls' home Forge World of Metalica lies within the Ultima Segmentum, situated in one of the most dangerous parts of the galaxy, near the Ork Empire of Charadon. They live in a constant state of readiness as they are always threatened by war.
Source:#
*Adeptus Titanicus (1st Edition)
*Codex: Eye of Terror (3rd Edition), p. 16
*Titan Legions (2nd Edition)
*Third War for Armageddon Worldwide Campaign



Legio Ordo Reductor
Alignment during the Heresy: Imperial
Homeworld: ?
Notable Actions: 13th Black Crusade
Colour Scheme: ?
Famous Titans: ?
Background: Little is known of the origins of the Legio Ordo Reductor Titan Legion except of their actions during the valiant defense of Cadia in 999.M41 from Warmaster Abaddon's Forces of Chaos during the 13th Black Crusade.
Source: Codex: Eye of Terror (3rd Edition), p. 16

Legio Ordo Sinister
Alignment during the Heresy: Imperial
Homeworld: Mars (Suspected - Classified)
Notable Actions: ?
Colour Scheme: ?
Famous Titans: ?
Background: The Legio Ordo Sinister is the senior-most, elite Divisio Mandati Titan Legion of the Collegia Titanica. The Legio Ordo Sinister is an elite special purpose Titan Legion. Comprised solely of a dozen Imperator-class Titans under the command of the renowned Grand Master Ferromort, the purpose of the Legio Ordo Sinister is simple: to inspire terror and obedience in those who are in danger of disrupting the Pax Imperium, to lend the weight of steel to the words of the Mechanicus' ruling Magi. In this respect the Legio often works in conjunction with the Adeptus Arbites, the Inquisition and the Ecclesiarchy, providing transport and fire support for their ground troops in innumerable short, vicious campaigns.
Source: Titan Legions (2nd Edition), p. 10

Legio Pallidus Mor (Pale Riders)
Alignment during the Heresy: Imperial
Homeworld: Tolkhan (Forge World), Segmentum Tempestus
Notable Actions: ?
Colour Scheme: ?
Famous Titans: ?
Background: They hail from the Forge World of Tolkhan, located in the Segmentum Tempestus. There is very little information in Imperial records about this obscure Titan Legion including when they were founded
Source: Imperial Armour -Volume One, p. 8

Legio Tempestus
Alignment during the Heresy: Imperial
Homeworld: Mars
Notable Actions: Epsiloid Binary Cluster Campaign (Unknown.M31) - A campaign conducted by the Legio Tempestus on behalf of the Adeptus Mechanicus during the Great Crusade. The Legion suffered the loss of 6 Titans and many wounded, including the already battle-scarred Victoris Magna, the towering war machine of "The Stormlord" himself. ; Schism of Mars; Defence of Orestes (779.M41) - The Legio Tempestus came to the aid of their fellow Adeptus Mechanicus forces to help defend the Forge World of Orestes from a large force of Traitor Titans. Due to the ongoing Sabbat Worlds Crusade, the Legio Tempestus was only able to provide a token force that was barely able to match the enemy forces unleashed upon Orestes. The Warmaster’s constant demands had drained the Orestes Forge of resources and units, leaving them weak in the face of the Chaotic attack. This put the Legion in an untenable position and its forces suffered over fifty-three percent losses. The battle group valiantly performed its duties until its war machines were relieved by a large Titan battle group from the Legio Invicta.
Colour Scheme: Cobalt Blue
Famous Titans:
* Deus Tempestus - This ancient and venerable Warlord-class Titan was the first and oldest Titan within the Legion
* Tharsis Hastatis
* Victorix Magna - Venerable Warlord-class Titan that served as the personal war machine of Senior Princeps Indias Cavalerio
* Arcadia Fortis - A Reaver-class Titan
* Metallus Cebrenia - A Reaver-class Titan
* Astrus Lux - A Warlord-class Titan
* Raptoria - A Warlord-class Titan
* Vulpus Rex - A Warlord-class Titan
Background: The Legio Tempestus is one of the oldest and most esteemed Loyalist Titan Legions of the Collegia Titanica. The home of the Legio Tempestus was none other than the chief Forge World of Mars in the Segmentum Solar, the sacred heart of the Cult Mechanicus and seat of its ruling Fabricator General. Their fortress-mountain was located at Acraeus Mons near the end of the Ascraeus Chasmata. They shared this rugged and inhospitable region of Mars with their rivals, the Legio Mortis, who were located at the other end of these ashen wastelands in their fortress at Pavonis Mons. During the 31st Millennium the climate on Mars was one of discontent. There were tense relations between the various Techno-Magi with sporadic outbreaks of espionage and violence being committed amongst the forges that represented the primary sociopolitical units of Mars. There were even unconfirmed suspicions that the Titan Legions had already secretly chosen sides in case of a potential civil conflict. Senior Princeps Indias Cavaleria of the Legio Tempestus sought to keep his Legion free from the insidious poison of the Mechanicus' politicking. He believed that the Titan Legions should remain true to their warrior ideals and not be instruments of the Magi's political will, and serve only the interests of the Imperium of Man itself. During the Great Crusade the bulk of the Legion was on crusade with Primarch Roboute Guilliman's Ultramarines Legion. When the Schism of Mars occurred during the opening days of the Horus Heresy the Legio Tempestus sallied forth in support of Magma City, a Loyalist forge that stood defiant of the newly imposed order of the corrupt Fabricator General Kelbor-Hal and his Dark Mechanicus co-conspirators. Facing their gravest crisis in its long and glorious history, Senior Princeps Cavalerio felt that warriors of honour and courage should not stand idly by in such times, they should act. The Legio Tempestus stood firm in the face of aggression in the defence of their allies, though they knew they would find their inevitable doom at the hands of their hated rivals of the Legio Mortis. The Legio Tempestus were overwhelmed by the superior numbers and firepower of their rivals. Despite the odds, "The Stormlord" valiantly led his Legion in the destruction of the Deaths Heads' lesser war machines, only to face their own destruction at the hands of the Imperator-class Titan Aquila Ignis. The Legio Tempestus would go on to fight throughout the darkest days of the Horus Heresy, participating in numerous engagements.
Notable Personnel: *Indias Cavalerio - Indias Cavalerio was known as "The Stormlord" and was the Senior Princeps of the Legio Tempestus. Cavalerio was severely wounded whilst fighting against the Traitor Titans of the Legio Mortis during the Horus Heresy. He received extensive cybernetic augmentation and underwent the process of complete immersion within a sensory-deprivation tank so that he could forge an even closer neural link with his Titan's Machine Spirit. He led his Legion during the Schism of Mars in the valiant defence of Magma City, but eventually met his ultimate fate at the hands of the Death Heads' Imperator-class Titan Aquila Ignis.
Source: Mechanicum (Novel) by Graham McNeill

Legio Ultima

Alignment during the Heresy: Imperial
Homeworld: Mars (Possibly-Classified)
Notable Actions: ?
Colour Scheme: ?
Famous Titans: ?
Background: There is very little information in Imperial records about this obscure Titan Legion, including when they were founded or what world they hail from. There is a distinct possibility that this Legion may be one of two classified Titan Legions that personally serve the the Fabricator General of the Adeptus Mechanicus on Mars. The Legion's current status remains unknown.
Source:

Legio Victorum (Foe Slayers)
Alignment during the Heresy: Imperial
Homeworld: Mars (Pre-Heresy), Triplex Phall (Forge World) Segmentum Pacificus
Notable Actions: Battle of Terra (M31) - The Legio Victorum appear in the historical records as being one of the valiant Collegia Titanica Titan Legions that valiantly defended the Imperial Palace from the traitorous hordes of the Warmaster Horus and his Forces of Chaos.
Colour Scheme: Blue with Gold, Bronze and Yellow Details
Famous Titans: ?
Background: There is very little information in Imperial records about this Titan Legion's founding. When the Schism of Mars occurred during the opening days of the Horus Heresy, the first Titans of the Legio Victorum were still based on Mars awaiting transport to other war zones within the Great Crusade when the civil war erupted between the Loyalist Mechanicum and the Traitor Fabricator General's Dark Mechanicus forces. The Legio Victorum fought valiantly on Mars until they could be withdrawn to Terra. They are recorded later in Imperial history as having taken part in the defence of the Imperial Palace from the Forces of Chaos during the Horus Heresy's climactic Battle of Terra. Nothing else appears in the historical records concerning this Titan Legion until ten millennia later. When the dire threat of the Tyranid Hive Fleet Kraken threatened the Segmentum Pacificus the Legion's home Forge World of Triplex Phall came under the Great Devourer's shadow. The Imperium immediately ordered a cordon of this section of space, effectively cutting off the star system from any outside assistance. Whether or not the Legio Victorum survived the onslaught of the Kraken remains unknown.
Source:
*Adeptus Titanicus (1st Edition)
* Imperial Armour Volume One, p. 8


Legio Xerxes
Alignment during the Heresy: Unknown
Homeworld: ?
Notable Actions: Compliance of Nurth during the Great Crusade
Colour Scheme: ?
Famous Titans: ?
Background: There is very little information in Imperial records about this obscure Titan Legion, including when they were founded or from what world they hail from. Ancient historical point out that this Legio may have been based on Mars itself. During the Great Crusade the Legio Xerxes Titan Legion was attached to the service of the 670th Expeditionary Fleet. The Primarch Alpharius and a force from his XX Legion, the Alpha Legion, fought with the 670th Expedition during the tragic campaign to bring the world of Nurth to Imperial Compliance, but never became an official part of the 670th's order of battle. Lord Commander Namitjira remained in formal command during the operation, though of course he deferred to the Primarch's orders. The Legio Xerxes supported Imperial ground forces during the disastrous compliance of Nurth, a lost human colony. At the evacuation of Nurth, 6 titans had to be left behind due to Lord Commander Namatjira's incompetence, after which Princeps Jeveth detached his force of Titans from the 670th Expeditionary Fleet and returned to Mars. The Legio Xerxes disappeared from all Imperial records after their return to the red planet. Following the opening days of warfare during the Schism of Mars, it is not known what side this Legio chose to support or if they were one of the many loyalists caught off guard by the treacherous attacks of the forces of the Dark Mechanicus, and destroyed outright.
Source: Legion (Novel) by Dan Abnett


Nova Guard
Alignment during the Heresy: Imperial
Homeworld: ?
Notable Actions: ?
Colour Scheme: ?
Famous Titans: ?
Background: There is very little information in Imperial records about this obscure Titan Legion or from where they hail from.
Source: White Dwarf, Issue 108) (UK)

That's all for now! Stay tuned for an update of the Traitor Titan Legions in the next couple of days! Enjoy!

For those of you who were interested in some of the names and schemes for some of the Knight Houses, here ya go!


House Krast


House Krast Knights


Various Houses/Knights


House Arakon


House Hyperion


House Lakar


Additonal Houses/Knights Colour Schemes


Hope this helps!

You sir, are a fluff wizard.

The Legio Crucius gets a lot more detail in Imperial Armour 10 - they have a black and white colour scheme.







This post has been edited by Ilmarinen on Oct 17 2011, 11:49 PM

Algrim, that is an extremely useful and exhaustive list! Great stuff, really looking forward to the traitor legions!

Addendum to the Legio Crucius:

Legio Crucius (Warmongers)
Alignment during the Horus Heresy: Imperial
Homeworld: Ryza
Notable Actions: Badab War, Third War for Armageddon; Legio Crucius was instrumental in the destroying eight Ork Gargants.
Colour Scheme: Black & White
Famous Titans: The following war engines were a part of War Maniple Secular (Ventator subtype deployment) Spearhead Titan attack on Hive Dominar - The Fall of Badab:
Reaver-class Titans: Astramos Mortis Æternem, Primus Secutar
Warhound-class Titans: Black Strider, Blood Caldos, Wolfshead
Hell's Daughter - Warlord-class Titan of High Princeps Cadmon Krom. Personally led the final attack of three full maniples of Titans, comprised of 15 war machines during the siege of Badab Primaris.
Background: The Legio Crucius (Warmongers) are a Loyalist Titan Legion of the Collegia Titanica, one of the military arms of the Adeptus Mechanicus. This Titan Legion has their great Perceptory and base of operations at Ryza, a major Forge World within the Segmentum Solar. Ryza is renowned for the manufacture of plasma reactor and magnetic containment field technology. The arts and sophistication of this Forge World is claimed by some to be second only to those of Mars itself. It is then unsurprising perhaps that the Legio Crucius, whose associations with Ryza are said to predate the Great Crusade, are renowned as one of the most well equipped Titan Legions in service, and sufficient in number to provide garrison forces for sevteral smaller outlying forge worlds and Adeptus Mechanicus outposts whose Magos maintain fealty or alliance to Ryza and its masters. Once, at some point in its history, it was unsuccessfully invaded by Orks. There is very little information in Imperial records about this obscure Titan Legion, though they are suspected to have been founded before the Age of the Imperium, sometime during the Age of Strife.

Badab War
The Badab War (912-913.M41) - Astral Claws Chapter Master, Lufgt Huron, the "Tyrant of Badab," sought to have the Badab Sector secede from the Imperium of Man in protest against the Imperium's continued attempts to use the resources of the Badab Sector outside the region rather than dedicating them fully to the defeat of the Forces of Chaos and xenos threats that emerged constantly the Maelstrom Zone. This major rebellion involved several Space Marine Chapters who turned Renegade and sided with the Tyrant in his mad cause. The world of Angstrom, was a highly independent and militant minor forge world situated at the edge of the Maelstrom Zones, and by this web of kinship the Legio Crucius became involved in the Badab War's savage closing battles. The Legio Crucius forces deployed to the siege of Badab itself, comprised of three full maniples of Titans, some fifteen machines in all commanded by the Warlord-class Titan Hell's Daughter and the High Princeps Cadman Krom. The Titans' principal task in the battle was to smash heavy defence points in Badab Primaris' hive cities and industrial zones and crush major pockets of resistance where encountered, a mission they took to with great relish, fully living up to their Legio's long-standing reputation as savage city-breakers and world burners, accounting for untold casualties and devastating the remaining Secessionist heavy armoured forces. The Legio suffered only three losses during the engagement despite the heavy resistance they encountered, and managed to recover all but one of the wrecked Titans in the anarchic retreat from the planet.

Third War for Armageddon
Little is known of this obscure Titan Legion other than their actions during the Third War for Armageddon. During a ten day battle which raged over the Diabolus factory complex, Titans from the Legio Crucius engaged Gargant mobs of Warlod Burzuruk and Warlord Skarfang. Six Titans and eight Gargants were utterly destroyed in the fighting and many others needed months of repairs before they could fight again. The Diabolus complex was wrecked during the battle, its foundries and machine shops blasted apart or crushed underfoot by giant fighting machines.
Source:
*Adeptus Titanicus (2nd Edition)
* Epic: Armageddon, p. 102
*Imperial Armour Volume One, p. 8
*Imperial Armour Volume Ten - The Badab War, Part Two, pp. 5, 43, 45, 49-51
*White Dwarf Issue 142, p. 34
*White Dwarf Issue 181, p. 24
*Third War for Armageddon Worldwide Campaign

Thanks for the heads up Ilmarinen on this esteemed Legio!

Without further ado, I present the Traitor Titan Legions:

Burning Stars
Alignment during the Heresy: Traitor
Homeworld: ?
Notable Actions: Fought the Legio Ignatium (Fire Wasps) during the Schism of Mars at the outset of the Horus Heresy.
Colour Scheme: ?
Famous Titans: ?
Background: The Burning Stars are a Traitor Titan Legion of the Dark Mechanicus that repudiated their oaths to the Emperor of Mankind and followed the Warmaster Horus in service to the Ruinous Powers during the Horus Heresy. There is very little information in the Imperial records about this obscure Titan Legion, though they are suspected to have been founded before the Age of the Imperium, during the Age of Strife. Even before the outbreak of open warfare, the climate on Mars was one filled with tension. There were unconfirmed suspicions that the Titan Legions stationed there had already secretly chosen sides in case of a potential conflict. At the outset of the Horus Heresy when the great civil war within the Mechanicus that was known as Schism of Mars broke out, the Burning Stars Titan Legion fought against the Loyalist Legio Ignatium (Fire Wasps) in the Athabasca Valles the war machines of the Burning Stars and the Legio Ignatium fought in bloody close quarters through the teardrop landforms caused by catastrophic flooding in an earlier, ancient age of the Red Planet. Neither force could gain the advantage, nor could either claim victory, so after a night’s undignified scrapping, both withdrew to lick their wounds. It is assumed that the Burning Stars were either destroyed at the end of the Heresy or were driven towards the Eye of Terror along with the rest of the Forces of Chaos. Their current whereabouts are unknown.
Source: Mechanicum


Death Stalkers
Alignment during the Heresy: Traitor
Homeworld: ?
Notable Actions: Schism of Mars, 13th Black Crusade
Colour Scheme: ?
Famous Titans: ?
Background: Even before the outbreak of open warfare during the Horus Heresy, the political climate on Mars, the sacred homeworld of the Adeptus Mechanicus was one filled with tension. There were unconfirmed suspicions that the Titan Legions stationed there had already secretly chosen sides in case of a potential conflict. At the outset of the Horus Heresy when the great Schism of Mars occurred, the Death Stalkers Titan Legion fought against the forces of the Loyalist Mechanicus. At the end of the Heresy the Death Stalkers were driven towards the Eye of Terror along with the rest of the Forces of Chaos. They remain trapped in servitude to the Chaos Gods, fighting the Long War that began ten millennia before.

Schism of Mars (M31) - During the open days of the Horus Heresy when civil war erupted on the Red Planet, Titans of the Death Stalkers were involved in the opening volleys of the war. Along the borders of the Lunae Palus and Arcadia regions, what had previously been confined to a heated war of words between different Mechanicus factions, erupted into true warfare when Princeps Ulriche of the Death Stalkers unleashed his war engines upon the fortress of Maxen Vledig’s Legio Honorum. Caught by surprise, the Death Bolts lost 19 Titans in the first hour of battle, before withdrawing into the frozen wastes of the Mare Boreum and seeking refuge in the dune fields of Olympia Undae. Their calls for reinforcement went unanswered, as all of Mars tore itself apart as the cancer of civil war spread across the planet in a raging firestorm.

13th Black Crusade (999.41) - When Abaddon the Despoiler led the largest Chaos incursion into Imperial space in 999.M41 since the Horus Heresy as part of the 13th Black Crusade, the Death Stalkers were one of the Traitor Titan Legions that had unconfirmed involvement in the campaign against the Imperial Fortress World of Cadia.
Source: WD 110, Codex: Eye of Terror, Mechanicum


Fire Masters

Alignment during the Heresy: Traitor
Homeworld: ?
Notable Actions: Schism of Mars, 13th Black Crusade
Colour Scheme: Black with Decoration done in Yellow Flames
Famous Titans: ?
Background: The Fire Masters are a Traitor Titan Legion of the Dark Mechanicum that repudiated their oaths to the Emperor of Mankind and followed the Warmaster Horus in service to the Ruinous Powers of Chaos during the Horus Heresy. There is very little information in the Imperial records about this obscure Titan Legion, though they are suspected to have been founded before the Age of the Imperium began, sometime during the Age of Strife. They were driven towards the Eye of Terror along with the rest of the Forces of Chaos. Their current whereabouts are unknown, though they did participate in the 13th Black Crusade in 999.M41, poviding support to the Forces of Chaos engaged in combat on the Fortress World of Cadia.

Fire Masters - Icon Variant



Iron Skulls (Not to be confused with the Loyalist Legio Metalica 'Iron Skulls')
Alignment during the Heresy: Traitor
Homeworld: ?
Notable Actions:13th Black Crusade
Colour Scheme: ?
Famous Titans: ?
Background:The Iron Skulls are a Traitor Titan Legion of the Dark Mechanicus that repudiated their oaths to the Emperor of Mankind and followed the Warmaster Horus in service to the Ruinous Powers during the Horus Heresy. There is very little information in the Imperial records about this obscure Titan Legion. It is assumed that they were either destroyed at the end of the Heresy or were driven into the Eye of Terror along with the rest of the Forces of Chaos. The only notable sighting of the Iron Skulls Legio was during the 13th Black Crusade (999.M41), when Abaddon the Despoiler led the largest Chaos incursion into Imperial space during the 13th Black Crusade, the Iron Skulls were one of the Traitor Titan Legions that had involvement in the campaign. There was a major Iron Skulls battlegroup sighted near the Imperial world of Vorga Torq.
Source: Codex: Eye of Terror (3rd Edition) p. 16


Legio Damnatus (Warped Dogs)
Alignment during the Heresy: Traitor
Homeworld: ?
Notable Actions: Battle of Terra
Colour Scheme: ?
Famous Titans: ?
Background: The Legio Damnatus (Warped Dogs) was a Traitor Titan Legion of the Dark Mechanicus that repudiated their oaths to the Emperor of Mankind and followed the Warmaster Horus into service to the Ruinous Powers during the Horus Heresy. This Traitor Titan Legion met their fate during the closing days of the Horus Heresy, during the Siege of Terra, when the Warmaster ordered his troop transports of his fleet to make planetfall, the renegades hoped to overwhelm the defenders by sheer weight in numbers. Unlike the drop-pods that had carried the traitor Space Marines in the initial assault wave, these vast bloated ships presented fine targets for the weapons of the defenders. Thus, the Battle for Terra began in earnest. Defence lasers blasted many of the Renegade starships from the sky, sending thousands of tons of fused metal raining down onto the ground below. Crippled vessels crashed into buildings or were vaporized in flight by the lancing beams of the huge Terran defence batteries. The transport vessel of the Legio Damnatus was vaporized and that Legion’s name passed into history.
Source:
* Horus Heresy: Collected Visions, p. 355
* White Dwarf 268 (UK), p. 25


Legio Damnosus (Lords of Ruin)
Alignment during the Heresy: Traitor
Homeworld: ?
Notable Actions: Multiple Engagements - Horus Heresy
Colour Scheme: ?
Famous Titans: ?
Background:The Legio Damnosus (Lords of Ruin) are a Traitor Titan Legion of the Dark Mechanicum that repudiated their oaths to the Emperor of Mankind and followed the Warmaster Horus into service to the Ruinous Powers during the Horus Heresy. There is very little information in Imperial records about this obscure Titan Legion, though they are suspected to have been founded before the Age of the Imperium, during the Age of Strife. It is assumed that they were either destroyed at the end of the Heresy or were driven towards the Eye of Terror along with the rest of the Forces of Chaos. Their current whereabouts are unknown.
Source: Imperial Armour Volume Seven – The Siege of Vraks - Part Three, p. 161


Legio Lacrymea (Harbingers of Grief)
Alignment during the Heresy: N/A, formerly loyal Titan Legion, turned traitor M35.
Homeworld: ?
Notable Actions: First Margin Crusade (M39) - The Legio Lacrymea took part in this doomed Imperial Crusade into the northern Halo Stars in the 39th Millennium, where they turned their backs on the Imperium to serve the Chaos Gods.
Colour Scheme: ?
Famous Titans: ?
Background: he Legio Lacrymea (Harbingers of Grief) was once a Loyalist Titan Legion of the Collegia Titanica, one of the military arms of the Adeptus Mechanicus. But during the doomed First Margin Crusade into the northern Halo Stars in the 39th Millennium, they shamefully betrayed the Imperium of Man and repudiated their oaths to the Emperor to serve the Ruinous Powers. There is very little information in Imperial records about this obscure Titan Legion, including when they were founded and what world they hail from. It is assumed they reside within the Eye of Terror along with the rest of the Forces of Chaos. Their current whereabouts are unknown.
Source: Imperial Armour Volume Seven – The Siege of Vraks - Part Three, p. 161


Legio Magna (Flaming Skulls)

Alignment during the Heresy: Imperial
Homeworld: Esteban VII (Formerly); Unknown world - Eye of Terror
Notable Actions: Schism of Mars, Battle of Terra
Colour Scheme: Red, Orange and Black
Famous Titans: ?
Background: The Legio Magna (Flaming Skulls) are a Traitor Titan Legion of the Dark Mechanicus that repudiated their oaths to the Emperor of Mankind and followed the Warmaster Horus in service to the Ruinous Powers during the Horus Heresy. This Legion swore itself to the sole service of the Blood God Khorne. There is very little information in Imperial records about this obscure Titan Legion, though they are suspected to have been founded before the Age of the Imperium, during the Age of Strife. The Legio Magna's homeworld was located in the Ultima Segmentum, where they hailed from the seventh planet of the Esteban System, the Forge World of Esteban VII.
Horus Hersy
* Schism of Mars (M31) - Later Imperial histories record that the first blow of the Martian civil war unleashed during the Horus Heresy that was known as the Schism of Mats was struck against Magos Mattias Kefra, whose forge in the Sinus Sabaeus region of the Red Planet was housed within the Madler Crater. Titans of the Legio Magna marched from the southern Noachis region and within minutes had smashed down the gates of his forge. Howling engines daubed in red, orange, yellow and black and decorated with flaming horned skull devices, ran amok within the high walls of the crater, crushing everything living beneath them and destroying thousands of years of accumulated wisdom in a fury of fire. Vast libraries burned and weapon shops that served the Solar Guard were reduced to molten slag as the indiscriminate slaughter continued long into the night.

* Battle of Terra (M31) - The Legio Magna took part in numerous engagements during the dark days of the Horus Heresy, but their most notable action occurred when they took part in the Battle of Terra and the Siege of the Imperial Palace.

It is assumed that the Flaming Skulls Legio were either destroyed at the end of the Heresy or were driven towards the Eye of Terror along with the rest of the Forces of Chaos. Their current whereabouts are unknown.
Source:
* Adeptus Titanicus
* Horus Heresy: Collected Visions
* Imperial Armour Volume One, p. 8
* Mechanicum (Novel) by Graham McNeill




Legio Morits (Deaths Heads)

Alignment during the Heresy: Traitor
Homeworld: Mars (Formerly); Unknown world - Eye of Terror
Notable Actions:
(Pre-Heresy)
*Ullanor Crusade, Great Crusade (Date Unknown.M31) - The Ullanor Crusade was a vast Imperial assault on the Ork empire of the Overlord Urrlak Urruk during the Great Crusade of the 31st Millennium. The capital world of this Greenskin empire, and the site of the final assault, lay in the Ullanor System. The Crusade included the deployment of 100,000 Space Marines, 8,000,000 Imperial Army troops, and thousands of Imperial starships and their support personnel. The Luna Wolves Legion spearheaded the assault with Titans from the Legio Mortis providing heavy support. In recognition of this great victory, Horus was elevated to the esteemed rank of Supreme Commander of the Imperial armed forces and granted the title of Imperial Warmaster.

* Murder (One-Forty-Twenty) (ca. 203.M31) - The world of Urisarach (nicknamed by the Space Marines who fought on it as Murder) was the twentieth world that was first encountered by the 140th Expeditionary Fleet, which was composed of three companies from the IX Space Marine Legion, the Blood Angels, commanded by Captain Khitas Frome. This deadly world acquired its nickname of "Murder" from the last transmission received from Captain Frome before the failed Imperial expedition was massacred by the local alien population -- a deadly arachnoid race dubbed the Megarachnids. Eventually it took a combined strike-force composed of elements from the Blood Angels, Emperor's Children, and Luna Wolves Space Marines as well as a Legio Mortis Titan battlegroup to initiate a full-scale assault that drove back the ultra-violent xenos.

* Davin's Moon (ca. 203.M31) - At the behest of Chaplain Erebus of the Word Bearers Legion, Warmaster Horus and his 63rd Expeditionary Fleet were requested to return to the Feral World of Davin. Erebus reported that the Imperial Governor of Davin -- Commander Eugen Temba had gone Renegade after he and his forces had gone to the moon in an attempt to bring the Davinite tribes there into compliance. Unfortunately for Commander Temba, the parley with the tribespeople turned violent, and he and his men were struck down by a sorcerous attack that had twisted their loyalty to the Imperium. The Renegade Commander and his forces took refuge on Davin's moon which they soon transformed into a Nurgle-corrupted swamp land. Supported by Titans from the Legio Mortis, the Warmaster led the assault force personally. It was here that the Imperial forces were first confronted by a horde of reanimated corpses of Plague Zombies which was all that remained of Temba's Imperial Army garrison. Ironically, the Deaths Heads would later become corrupted themselves by the Chaos Lord of Decay, Nurgle. They did not know that they were fighting against the deity in the form of hundreds of deceased-ridden Plague Bearers. It was during the Warmaster's confrontation with the daemon-possessed Temba that he would fall, gravely wounded by the mysterious Chaotic sword known as the Kinebrach Anathame.

(Horus Heresy)
*Istvaan III (ca. 205.M31) - The Imperial Planetary Governor of Istvaan III, Vardus Praal, had been corrupted by the Chaos God Slaanesh whose cultists had long been active on the world. In 205.M31, Praal declared his world to be independent from the Imperium. Unaware of the change in the Warmaster's loyalties, the Council of Terra charged Horus with the retaking of that world, primarily its capital, the Choral City. When the Imperium finally gathered their forces, the Sons of Horus, Death Guard, Emperor's Children and the World Eaters Legions arrived in the Istvaan System, mustering in orbit above the doomed planet. Under the guise of putting down the rebellion against Imperial Compliance, Horus hatched the plan by which he would destroy all the remaining Loyalist elements of the Legions under his command. He purposely gathered those Astartes who were not loyal to him and used them in the assault on the non-compliant world. With elements of the Legio Mortis Titan Legion in support, the invasion of Istvaan III then began in earnest. One of these terrible war machines was the infamous Imperator-class Titan, the Dies Irae (Day of Wrath), which had already gained a fearsome reputation amongst the Astartes of the 63rd Expeditionary Fleet. At the moment of victory and the capture of the Choral City the Loyalist Astartes involved in the assault were betrayed when a cascade of terrible virus-bombs fell onto the world, launched by the Warmaster's orbiting fleet. Caught in the deadly virus bombardment, the Princeps of the Dies Irae had the behemoth sealed against the deadly vapours of the virus-bombs, as his crew watched in horror as Istvaan III died around them, including many of the Loyalist Death Guard Astartes they had been supporting only moments before. Without the benefit of cooling systems and sufficient ventilation they were very nearly overcome by the intense heat when the secondary firestorm erupted. When the flames finally died down the Dies Irae went on to attack and help exterminate the remaining Loyalist forces within the ruins of Choral City.

*Schism of Mars (ca. 206.M31) - When open civil war erupted all over the Red Planet as the civil war within the Adeptus Mechanicus known as the Schism of Mars began, the Legio Mortis had already pledged their support to the Fabricator General and his co-conspirators of the Dark Mechanicus. Sallying forth from their fortress at Pavonis Mons, the Legio Mortis clashed with the Loyalist Titan Legion called the Legio Tempestus in open warfare near Magma City, but ultimately, these contingents of Deaths Heads Titans were wiped out by the Loyalist Titan Legion.

*Battle of Tallarn (Unknown Date.M31) - The Legio Mortis is known to have fought in various engagements during the Horus Heresy, including the infamous Battle of Tallarn. During the Heresy in the early 31st Millennium, the Iron Warriors Traitor Legion -- intending to destroy all potential resistance before landing -- virus-bombed the world of Tallarn, rendering it an inhospitable desert. Only then did the Chaos Space Marines land. Tallarn's few survivors emerged from their underground bunkers to stop the Iron Warriors' invasion. Soon, reinforcements from both sides arrived, including the Legio Astorum Titan Legion. It soon became painfully clear to the Imperial forces the futility of fighting over a destroyed planet, but by then there was no turning back. Though it was not known at the time, the Iron Warriors were motivated to attack the world beyond their mere appetite for destruction because Tallarn was the site of a hidden and potentially powerful Chaos artefact. The poisoned environment of the world made it impossible for infantry troops to operate outside of their protective shelters, and so the only available option was to make use of armoured vehicles and the support of the Titan war machines of the Legio Astorum. The Legio Mortis fought their hated Loyalist kin from the Warp Runners, while the largest tank battle in human history erupted on the surface of Tallarn, involving some 10 million armoured vehicles. By the end of this brutal conflict, the Iron Warriors were defeated, and the wreckage of over a million tanks littered the sands.

*Battle of Terra (ca. 212.M31) - The Legio Mortis took part in numerous engagements during the dark days of the Horus Heresy, but their most notable action occurred when they took part in the Battle of Terra and the Siege of the Imperial Palace. Horus commanded the Deaths Head Titan Legion to break the walls. The fell Titans began to demolish entire sections of the bastion. The defenders inflicted dreadful carnage upon them - three, four then five massive Titans were destroyed in as many minutes. The Chaos Titans would not relent and they kept hammering away at the walls. The walls of the Emperor's Palace finally broke under the onslaught of the Deaths Head Titan Legion -- its huge Warlord Titans smashed their way through the last few metres of the bastion and unleashed a flood of Traitors into the inner courtyard of the Palace. But despite their efforts, ultimately Horus was laid low by the Emperor himself and thr Forces of Chaos were forced to flee into the Eye of Terror.
Colour Scheme: Black, Red, Silver and Gold (Pre-Heresy); Now that they are the corrupted followers of Nurgle, their Titans no longer resemble the once-proud war machines of the past. They now display the outwards signs of their allegiance to the Plague God, and are covered in all manner of putrescence, decay and filth.
Famous Titans:
* Aquila Ignis - The Aquila Ignis was an Imperator-class Emperor Titan constructed in the Daedalia Forge Yards far to the south of Tharsis on Mars. The Aquila Ignis fought during the Schism of Mars against Loyalist elements from the Legio Tempestus in the battle for Magma City, where it was destroyed in the heavy combat.

* Dies Irae (Day of Wrath) - The Dies Irae was an Imperator-class Titan which fought in the 63rd Expeditionary Fleet under the command of Warmaster Horus. This infamous Titan was present during the opening days of the Horus Heresy at Istvaan III, when it followed the Warmaster's orders and helped exterminate the remaining Loyalist Astartes after they were virus-bombed from orbit. The Dies Irae was also present during all of the major ground assaults towards the end the rebellion. The Dies Irae finally met its fate ten millennia during the siege of Hydra Cordatus serving as part of an Iron Warriors attack force. When it was confronted by Imperial Titans from the Collegia Titanica, the Dies Irae was critically damaged when a Warlord-class Titan detonated its plasma reactor when it was in close proximity to the Traitor Titan. Another Warlord Titan penetrated the Dies Irae's Void Shields with its Battle-Claw and crushed the Chaos-tainted Titan's reactor.

* Death's Head - Warlord-class Titan involved with the assault on Davin's moon during the Great Crusade.

* Xestor's Sword - Warlord-class Titan involved with the assault on Davin's moon during the Great Crusade.

* Vulkus Tor - Reaver-class Titan destroyed by Orks on Ullanor during the Great Crusade.

* Venator - Warhound-class Titan and a member of the Deaths Head Scouts, a Warhound Titan battlegroup that fought during the Horus Heresy. It was the excesses committed by Senior Princeps Esau Turnet's Deaths Head Scouts during the course of the Horus Heresy which was directly responsible for terminating the practice of organising Scout Titans (such as the Warhound) into battlegroups.

Notable Personnel:
* Camulos - Senior Princeps, commander of the Legio Mortis' forces on Mars at the Legio's fortress located at Pavonis Mons. Camulos led the Titans of his Legio against the Loyalist Titans of the Legio Tempestus in open warfare at the Battle of Magma City during the Schism of Mars.

* Esau Turnet - Esau Turnet was a Senior Princeps, the commander of the Imperator-class Emperor Titan Dies Irae during the Horus Heresy. The Senior Princeps had already repudiated his oaths to the Emperor and sworn allegiance to the Warmaster by the time the events of Isstvan III occurred. Turnet was privy to what Horus had planned for the Loyalist Astartes on the surface of the doomed planet.

* Jonah Aruken - Aruken was the Moderati Primus of the Imperator-class Titan Dies Irae during the Horus Heresy. When the Warmaster enacted the opening phase of his rebellion on Istvaan III, he was present on the Dies Irae. After the virus-bombing and secondary firestorm, Senior Princeps ordered the Titan's weapons to be reactivated and to fire upon the Loyalist Death Guard Astartes. Horrified, his friend and fellow Moderati Titus Cassar attempted to stop the Senior Princeps from carrying out his unlawful orders. Seeing his future ambitions to command his own Titan being sabotaged by his friend Titus, Jonah shot and killed his fellow Moderati. He then carried out Senior Princep Turnet's orders and proceeded to fire upon the loyalists.

* Titus Cassar - Moderati Primus of the Imperator-class Titan Dies Irae during the Horus Heresy. He was secretly a member of the Emperor-worshiping cult known as the Lectitio Divinitatus, which believed that the Emperor was a divine being and the God of Mankind. He was often ridiculed by his friend and fellow Moderati Jonah Aruken for his beliefs. Titus was present during the opening days of the Warmaster's rebellion at Istvaan III. He watched in horror as the planet was virus-bombed and died and the subsequent firestorm that followed. When ordered by Senior Princeps Turnet to reactivate their weapons and open fire on the Death Guard Astartes that they had supported only moments before, Titus attempted to stop him, but was killed by Jonah Aruken.

Background: The very name of the Legio Mortis has long since become a foul taint to the defenders of humanity, uttered only with fear and loathing. Their infamy stretches back ten millennia to the beginning of the Horus Heresy when the daemon-possessed Warmaster Horus forced the newborn Imperium into a bloody civil war.

The Legio Mortis had fought in the 63rd Expeditionary Fleet under the command of the Warmaster in a hundred campaigns during the Great Crusade – their loyalty had long since been pledged to him rather than the distant Emperor of Mankind. Ironically, the Deaths Heads would become corrupted by the Chaos God of Decay, Nurgle – a deity whose undead servants they had once fought against on the feral moon of Davin, where Horus had been mortally wounded. When the Warmaster "miraculously" recovered from his wounds after being corrupted by the Chaos Gods and began his campaign against the Emperor by virus-bombing the defenceless world of Istvaan III, the Deaths Heads landed on the world to scour the corpse-packed hives for the pitifully few survivors and eliminate the remainign Loyalist Space Marines that Horus had deliberately hoped to eradicate in his attack. Some say that mutated strains of the life-eater virus brought about their final corruption, while others say the madness inspired by the billions of putrefying corpses turned their faces to Chaos.

When the Horus Heresy became a full-blown insurrection, the traitorous Fabricator General Kelbor-Hal of the Adeptus Mechanicus threw in his lot with the Warmaster's cause. The Legio Mortis supported the Fabricator General, being one of the first Titan Legions to fight in support of Horus. Open civil war erupted all over the red planet as the civil war within the Mechanicus that became known as the Schism of Mars began. Both Loyalist and Dark Mechanicus forces brought forth forbidden technologies to use against one another. The Dark Mechanicus-aligned Legio Mortis eventually fought the Legio Tempestus in open warfare near Mars' Magma City, but these contingents of Deaths Heads Titans were wiped out by the Loyalist Titan Legion that defended the hive city.

By the time the Legio Mortis landed on Terra to take part in the siege of the Emperor’s palace, its Titans had been warped and mutated beyond all recognition -- their adamantium hulls pocked-marked and bubbling with fetid vapours. The twisted flesh and metal of great tentacles lashed to and fro, spiked tails whipping about. The once-noble skull-faced heads had now been transformed by the eldritch powers of Chaos into rancorous visages of drooling daemons filled with malice. Their engines roared like angry beasts.

The Warmaster granted the Legio Mortis the singular honour of breaching the outer walls of the Imperial Palace. Using Wreckers, Power Rams, Warp Missiles and their own fiendish bravery they managed to accomplish this near-suicidal task despite suffering the loss of over thirty Titans in one evening of intense fighting. The walls of the Imperial Palace finally broke under the onslaught by the Deaths Heads Titan Legion -- the huge Warlord-class Titans of the Legion smashed their way through the last few metres of the bastion and unleashed a flood of Traitors into the inner courtyard of the Palace. But despite their efforts, ultimately the Siege of Terra failed and Horus was laid low by the Emperor himself. The remnants of the Legio Mortis fled from Terra and were hunted and pursued, system by system, to the Eye of Terror. There, where the Warp and realspace overlap, time has flowed differently for the Deaths Heads. They remain trapped in servitude to the Ruinous Powers, fighting the Long War against the forces of the Corpse Emperor that began ten millennia before, building their strength and testing the Imperium’s defences for the time when they shall return and wreak terrible vengeance on all living things for the defeat of their beloved Warmaster.
Source:
* Adeptus Titanicus (2nd Edition)
* False Gods (Novel) by Graham McNeill
* Flight of the Eisenstein (Novel) by James Swallow
* Galaxy In Flames (Novel) by Ben Counter
* Mechanicum (Novel) by Graham McNeill
* Titan Legions (2nd Edition), p. 12

Legio Mortis Reaver Class Titan (Death Bringer Variant)


A Legio Mortis Reaver-Class Titan clashes with Titans from the Legio Tempestus outside Magma City during the Schism of Mars


Legio Mortis - Nurgle-corrupted Titan



Legio Tempestor (Storm Lords)

Alignment during the Heresy: Traitor
Homeworld: Esteban III
Notable Actions:
Colour Scheme:
Famous Titans:
Background:The Legio Tempestor (Storm Lords) are a Traitor Titan Legion of the Dark Mechanicus that repudiated their oaths to the Emperor of Mankind and followed the Warmaster Horus in service to the Ruinous Powers during the Horus Heresy. There is very little information in Imperial records about the founding of this Titan Legion, though they are suspected to have been founded before the Age of the Imperium, during the Age of Strife. What is known is that the Storm Lords hailed from the Forge World of Esteban III, located in the Ultima Segmentum. At the end of the Heresy the Storm Lords were present during the Battle of Terra, but when the Warmaster fell, they were driven towards the Eye of Terror along with the rest of the Forces of Chaos. There they remain, trapped in servitude to the Chaos Gods, fighting the Long War against the Corpse Emperor that began ten millennia before. The Storm Lords current whereabouts are unknown.
Source:
* Adeptus Titanicus
* Horus Heresy: Collected Visions
* Imperial Armour Volume One, p. 8

Storm Lords Reaver Class Titan - Pre-Heresy

Storm Lords Corrupted Titan



Legio Vulcanum I (The Dark Fire)
Alignment during the Heresy: Traitor
Homeworld: Stygies VIII (Forge World) (Former), Eye of Terror (Current)
Notable Actions:
* Shi'Hu'Gal Purge (Unknown.M31) - The Legios Vulcanum I & II supported the Night Lords Legion during the infamous xenocidal purge of the Shi'Hu'Gal Dominion during the Great Crusade.

* Siege of Vraks (813-840.M41) - During the Siege of Vraks, a battlegroup of Chaos Titans belonging to the hated Traitors of the Legio Vulcanum I (known in some sources as ‘the Dark Fire’), were seen accompanying the Chaos forces drawn into the steadily escalating conflict on Vraks Prime. The exact number of enemy Titans deployed was not confirmed, although post-battle reports claimed 14 enemy Titans of the Warhound and Reaver-classes were destroyed during the campaign. If so, then the Legio Vulcanum paid a heavy price for its involvement, and their hated enemies from the Loyalist Legio Astorum can claim a famous victory over their ancient enemy.

* 13th Black Crusade (999.41) - When Abaddon the Despoiler led the largest Chaos incursion into Imperial space in 999.M41 since the Horus Heresy as part of the 13th Black Crusade, the Legio Vulcanum I were one of the Traitor Titan Legions that had a suspected presence in the campaign. There were four unconfirmed assaults led by the Dark Fire on the Imperial worlds of Belisar and Kromat.
Colour Scheme: Olive Green with details in Yellow and Black.
Famous Titans: Venataris Mori - Perhaps the most infamous of the Dark Fire's Titans is the Warhound-class Titan identified by the Imperial Logos Tactica as an ancient and thrice-cursed war machine named the Venataris Mori, a corrupted Warhound Titan of the Mars pattern. The Mori’s history is known to date back to long before the Horus Heresy and it was said to have accompanied the Night Lords Space Marine Legion on their infamous xenocidal purge of the Shi’hu’gal Dominion; a campaign of such fury and viciousness it remains a legend of the Great Crusade, even after the Warmaster’s betrayal of the Emperor.
Background: Stygies VIII was once home to two Titan Legions, the 1st and 2nd Legios Vulcanum. While unusual for a single star system to support two Titan Legions it is far from unknown, as Mars itself supports three. Stygies VIII was granted two Legions due to its close proximity to the Eye of Terror and the attendant risks of Chaotic attack on this important Forge World. Most of the twin Legions' war engines were on crusade with the Warmaster Horus when the Horus Heresy began. In a series of bloody surprise attacks, a core of Chaos Cultists back on Stygies VIII seized control of the Forge World’s manufactorum facilities. Reduced to a small group of Loyalist Tech-priests, these valiant defenders protected the planet's Temple of Knowledge against the robed cultists and the hastily-improvised berserker machines that they had produced. Expecting to die, the Loyalists were trapped and alone, but their liberation came from an unexpected quarter. On the thirty-first day of the siege, the Eldar Craftworld of Saim-Hann sent forces of graceful Eldar Titans supported by speeding Jetbikes in their hundreds, which smashed the Chaos Cultists. They had not come to help the Mon-Keigh, but to deny to the Forces of Chaos such a strategically potent manufacturing world so close to the Eye of Terror. When the Horus Heresy finally ended, both the Traitorous Titan Legions of Stygies VIII fled into exile within the Eye of Terror. Stygies VIII is now home to a third Titan Legion, the Legio Honorum, which was raised to resotre the Forge World's honour in the eyes of the Emperor.
Source:
* Adeptus Titanicus
* Imperial Armour Volume One, p. 8
* Imperial Armour Volume Six - The Siege of Vraks - Part Two, p. 161
* Imperial Armour Volume Seven - The Siege of Vraks - Part Three, p. 182



Legio Vulcanum II
Alignment during the Heresy: Traitor
Homeworld: Stygies VIII (Forge World) (Former), Eye of Terror (Current)
Notable Actions:
* Shi'Hu'Gal Purge (Unknown.M31) - The Legio Vulcanum I & II supported the Night Lords Legion during the infamous xenocidal purge of the Shi'Hu'Gal Dominion during the Great Crusade.

* 13th Black Crusade (999.41) - When Abaddon the Despoiler led the largest Chaos incursion into Imperial space in 999.M41 since the Horus Heresy as part of the 13th Black Crusade, the Legio Vulcanum II were one of the Traitor Titan Legions that had a suspected presence in the campaign near the Imperial world of Subiaco Diablo.
Colour Scheme: Olive Green with details in Yellow and Black.
Famous Titans: ?
Background: (See Legio Vulcanum I, above)
Source:
* Adeptus Titanicus
* Codex: Eye of Terror (3rd Edition), p. 16
* Imperial Armour Volume One, p. 8
* Imperial Armour Volume Six - The Siege of Vraks - Part Two, p. 161
* Imperial Armour Volume Seven - The Siege of Vraks - Part Three, p. 182


Legio Vulturum
Alignment during the Heresy: Traitor
Homeworld: ?
Notable Actions:
Colour Scheme: Silver, White and Black
Famous Titans: ?
Background: The Legio Vulturum is a Traitor Titan Legion of the Dark Mechanicus that repudiated their oaths to the Emperor of Mankind and followed the Warmaster Horus in service to the Ruinous Powers during the Horus Heresy. There is very little information in Imperial records about this Titan Legion's founding or from where they hail from but they are suspected of having been founded before the Age of the Imperium during the Age of Strife. At the end of the Heresy, during the Great Scouring, the Legio Vulturum was driven towards the Eye of Terror along with the rest of the Forces of Chaos. They remain trapped in servitude to the Chaos Gods, fighting the Long War against the Corpse Emperor that began ten millennia before.
Source:
* Adeptus Titanicus (1st Edition)
* Adeptus Titanicus (2nd Edition)


Tiger Eyes

Alignment during the Heresy: Traitor
Homeworld: ?
Notable Actions:
Colour Scheme: Yellow and Black; decoration with Black Flames
Famous Titans: ?
Background: The Tiger Eyes is a Traitor Titan Legion of the Dark Mechanicus that repudiated their oaths to the Emperor of Mankind and followed the Warmaster Horus in service to the Ruinous Powers during the Horus Heresy. There is very little information in Imperial records about this Titan Legion's founding or from where they hail from, but they are suspected of having been founded before the Age of the Imperium during the Age of Strife. At the end of the Heresy during the Great Scouring the Tiger Eyes Legio was driven towards the Eye of Terror along with the rest of the Forces of Chaos. They remain trapped in servitude to the Chaos Gods, fighting the Long War against the Corpse Emperor that began ten millennia before.

Source:
* Adeptus Titanicus (1st Edition)
* Adeptus Titanicus (2nd Edition)
* White Dwarf 109 (UK)

Another Traitor Titan Legio! I present the Legio Argentum:

Legio Argentum
Alignment during the Heresy: Traitor
Homeworld: ?
Notable Actions: Compliance of Damantyne
Colour Scheme: ?
Famous Titans: ?
Background: The Legio Argentum are a Traitor Titan Legion of the Dark Mechanicus that repudiated their oaths to the Emperor of Mankind and followed the Warmaster Horus in service to the Ruinous Powers during the Horus Heresy. There is very little information in the Imperial records about this obscure Titan Legion, though they are suspected to have been founded before the Age of the Imperium, during the Age of Strife. During the Great Crusade the Legio Argentum was attached to the 51st Expeditionary Fleet - 14th Grand Company of the IV Legion (Iron Warriors). After their successful campaign of the world of Damantyne, the Iron Warriors built a mighty citadel and left a small detachment to garrison the planet. The Legio Argentum then left with the 51st Expeditionary Fleet for parts unknown. During their time away from the planet, the Iron Warriors fell under the sway of Warmaster Horus and joined his rebellion - this included those Iron Warriors of the 14th Grand Company as well as the Titans of the Legio Argentum. When the 51st Expeditionary Fleet returned to Damatyne for resupply, the Warsmith in charge of the garrison refused to support the Warmaster's cause. The bulk of the expeditionary fleet's forces were brought to bear upon the recalcitrant citadel, laying siege to it for over a standard Terran year. The inevitable conclusion drawing near, an Imperator-class Titan of the Legio Argentum was deployed against the citadel by the Traitors, but was eventually destroyed. It is not known what other notable engagements the Legio Argentum was involved in for the remainder of the rebellion. It is assumed that the Legio Argentum were either destroyed at the end of the Heresy or were driven towards the Eye of Terror along with the rest of the Forces of Chaos. Their current whereabouts are unknown.
Source: Age of Darkness (Anthology), "The Iron Within" by Rob Sanders

Spotted this Titan kitbash on Gw's Flickrpool:



Nice project, just can't tell if it's supposed a Knight, Wolfhound, or Reaver counts as?