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Princeps

A Princeps linked with his Titan's Mind Impulse Unit.

A Princeps (pl. Princeps) is a senior officer in command of one of the towering Imperial or Chaos humanoid combat walkers known as a Titan, and all of its crewmen are subordinate to them.

Princeps are all people of exceptional willpower, which is required to enter a mind-link with a Titan and maintain their sanity intact amidst the roaring spirit of destruction housed within the Titan's adamantium hull.

Although they belong to the separate military hierarchy of their Titan Legion and the Collegia Titanica, the Princeps are part of the Cult Mechanicus, and as such defer to the orders of powerful Adeptus Mechanicus magi, who command the might of the Titan Legions and are able to issue them direct orders and decide their assignments.

The Princeps exerts command over his war engine by the means of a Mind Impulse Unit -- a technologically complex neural input device which allows for a cybernetic connection between the human mind and a Titan's Machine Spirit, and the ability to impose his or her will upon it.

To establish the link between the Machine Spirit and the human mind requires that the Princeps submit to extensive cybernetic augmentation of his or her central nervous system, either by accepting the implantation of a several cybernetic implants at the back of the neck and skull, a series of implants in the spine which enable the linking of the MIU to the spinal cord or even undergoing entombment in an amniotic tank with large parts of the body rewired to accomodate cybernetic interaction with the Titan.

The process of linking the human mind to a god-machine is very difficult and dangerous, as a Titan is possessed of a ferociously potent Machine Spirit; one that is unlike any other, harbouring its own savage and instinctive intelligence. The Princeps must break the machine's opposition and bind it to their will -- a feat requiring enormous willpower.

PrincepsModel1

A Titan Princeps of the Adeptus Titanicus.

Because of this, Princeps are rare individuals, and one of the tasks the Collegia Titanica carries out is to discover them wherever they can be found and train them to command the colossal war engines. Whilst normally the Adeptus Mechanicus searches for its personnel within the Cult Mechanicus, the sheer rarity of such individuals requires the Mechanicus to search in the broader populace of the Imperium.

Barely one in ten million possess the necessary qualifications to serve as a Princeps, and even fewer of this number make it through the training to finally command a war engine. Because of this reality, Princeps are immensely valuable individuals, and their home Forge World will spare no effort to recover them should they go missing in action, and if the slimmest chance exists that they are still alive.

There are two ways in which one can become a Princeps -- undergoing training in Collegia Titanica academies, as mentioned above, or advancing from the rank of a Moderatus to a full Princepture, which is usually the command of Warhound-class Scout Titan.

When the Princeps is linked to a Titan's MIU, he feels the Titan's body as if it was his own -- his hands become weapon arms, his senses are turned into powerful auspexes and his skin becomes the thick adamantium hull -- an experience of supremacy and escape from human frailty that addicts every Princeps to his or her link with a Titan.

The Princeps is then able to command the Titan intuitively -- he merely needs to think of undertaking an action and the machine complies. During this operation, the Princeps does not lose conciousness of his own body, and is able to simultaneously move and act as normal within the Titan's cockpit.

Relationship with the Machine Spirit

When a Princeps first links with a new Titan, they must first break its resistance and force it to acknowledge them as its new master. Once that is done, however, the Machine Spirit's (artificial intelligence) resistance does not cease, and each re-connection is painful and mentally taxing for the Princeps.

Being linked to a Titan will, either through the sheer mental strain of connecting to and becoming a being that dwarfs a human in nearly every respect, or through the actual patient endeavour of the Titan's Machine Spirit, eventually result in the Princeps losing sanity, being broken by the Titan, or being completely overwhelmed by the domineering Machine Spirit, lost in the machine's mental landscape or manifold. At this point, disconnecting the Princeps from the Mind Impulse Unit will result in certain death.

There is also a perverse effect to the mind-link: it is highly addictive to the human mind. From the moment he manages to dominate his Titan's Machine Spirit, the Princeps will actively crave being linked to his war engine, for the feeling of becoming a godlike machine of destruction is impossibly intense, and living as a mere human eventually becomes intolerable for some Princeps.

Alas, this withdrawal also accelerates the Princeps' descent into madness, straining his mind when he is not linked to his mighty war machine. If a Princeps does not fall in battle, he will ultimately fall to the Machine Spirit of his Titan when his will finally snaps.

Being linked to the Titan's Mind Impulse Unit is a considerable effort in itself, and controlling the war machine's systems precisely is difficult. Most Princeps are incapable of controlling all of a Titan's functions simultaneously due to the sheer, unbearable mental tumult it inflicts, and those who do will only do so for short periods of time.

For this reason, Princeps are assisted in operating these towering war machines by junior officers called Moderati -- whose role is to operate some of the Titan's systems in their commander's stead -- lessening the mental strain placed on the Princeps and allowing for the efficient handling of the machine.

The mind-link is a very intimate and immersive connection, causing the Princeps and the Titan to leave an imprint in each other's consciousness and grow increasingly alike over time. The Titan's Machine Spirit will learn from its Princeps and from the battles they take part in, storing the knowledge and making it available at all times and to any Princeps that will command the war machine in the future.

The Princeps on the other hand, will, with time, begin to show traits of character akin to those of his or her war engine. The nature of the Machine Spirits varies between individual Titans, however war engines of the same class will be similar.

Thus, the commanders of Warhound-class Scout Titans are known to be bellicose and belligerent, and sometimes loners, though the latter may be due to their generally solitary assignments as scouts, while the Princeps of other war engines are more cool-headed and better capable of cooperation as part of a larger force.

Chaos Princeps

Chaos Princeps

Traitor Princeps merged with his war machine.

During the Horus Heresy, half of the Titan Legions declared support for the Warmaster Horus, and since those ancient times, the fickle blessings of the Ruinous Powers have warped many of them.

Although some of the Traitor Princeps have remained largely unchanged, and are presumed to operate their machines as described above, the rest have become hideously disfigured and physically merged with the corrupted war machines they command, linking with them not only in mind, but in flesh as well.

Videos

Warhammer 40,000 Grim Dark Lore Part 7 – The Machine God

Warhammer 40,000 Grim Dark Lore Part 7 – The Machine God

Sources

  • Adeptus Titanicus (1st Edition), pg. 6
  • Codex Titanicus (1st Edition), pp. 4, 7, 15, 22, 30
  • Imperial Armour Volume Six - The Siege of Vraks - Part Two, pg. 182
  • Imperial Armour Volume Seven - The Siege of Vraks - Part Three, pg. 49
  • Wargammer 40'000 Rulebook (4th Edition), pg. 121
  • Titanicus (Novel), by Dan Abnett
  • Mechanicum (Novel), by Graham McNeill
  • Helsreach (Novel), by Aaron Dembski-Bowden

Gallery

Raven Rock Videos
Warhammer 40,000 Overview Grim Dark Lore Teaser TrailerPart 1: ExodusPart 2: The Golden AgePart 3: Old NightPart 4: Rise of the EmperorPart 5: UnityPart 6: Lords of MarsPart 7: The Machine GodPart 8: ImperiumPart 9: The Fall of the AeldariPart 10: Gods and DaemonsPart 11: Great Crusade BeginsPart 12: The Son of StrifePart 13: Lost and FoundPart 14: A Thousand SonsPart 15: Bearer of the WordPart 16: The Perfect CityPart 17: Triumph at UllanorPart 18: Return to TerraPart 19: Council of NikaeaPart 20: Serpent in the GardenPart 21: Horus FallingPart 22: TraitorsPart 23: Folly of MagnusPart 24: Dark GambitsPart 25: HeresyPart 26: Flight of the EisensteinPart 27: MassacrePart 28: Requiem for a DreamPart 29: The SiegePart 30: Imperium InvictusPart 31: The Age of RebirthPart 32: The Rise of AbaddonPart 33: Saints and Beasts
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