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Imperial Robots, known also as Battle-Automata, are non-sentient, mechanical automatons used for labor and combat within the Imperium of Man that were created as the result of the exploitation of now-lost archeotech. They are primarily constructed and maintained by the members of the Legio Cybernetica, a sub-division of the Adeptus Mechanicus.
The origins of the robots employed by the Imperium harken back to the earliest days of human technology, with the most advanced models presumably dating to the Dark Age of Technology during the zenith of Mankind's scientific prowess and technological power. Not much is known of this bygone age due to the loss of technology with the oncoming of the Age of Strife, but what is known is the Legio Cybernetica manufactured and produced large quantities of robots during the Great Crusade of the 31st Millennium. These robot cohorts were instrumental in helping to bring untold numbers of rediscovered worlds back into the fold of humanity and under the rule of the Emperor of Mankind. The Imperial conquest continued nearly unabated until the realm of the Emperor was threatened by an unforeseen and unexpected threat from within with the onset of the terrible interstellar civil war known as the Horus Heresy.
Warmaster Horus, the Primarch of the Luna Wolves Legion, was one of the twenty super-human, genetically-engineered sons of the Emperor created to lead the armies of the Great Crusade in their great task of reuniting all the human settled worlds of the galaxy beneath the rule of the Imperium. He was the Emperor's right hand; his greatest and most beloved son. He knew he would have to secure the support of the Adeptus Mechanicus and their superior technology and materiel if he was to defeat the Emperor and conquer the galaxy. Taking advantage of the climate of discontent already present within the Mechanicus over restrictions the Emperor had placed on the development of certain technologies, the Warmaster manipulated the ruling Fabricator-General Kelbor-Hal and his loyal followers into joining his cause and founding what would later be known as the Dark Mechanicus. This included many Tech-adepts of the Legio Cybernetica, who were some of the first to declare for the Warmaster and follow him into treachery against the Emperor. The terror value of robots when used against unprepared and underarmed troops had not gone unnoticed by the Warmaster. This, combined with their unflagging loyalty, had made them an invaluable addition to his Expeditionary Fleet when bringing worlds into Imperial Compliance during the Great Crusade. When Horus commanded his forces to move against the Emperor during the opening days of the Heresy, many of the Legio Cybernetica cohorts at his disposal leapt to obey. When the conflict ended following the defeat and death of Horus at the hands of the Emperor during the Battle of Terra, these dishonoured cohorts of the Legio fled into the dark realm of the Eye of Terror alongside the Traitor Legions, where they remain to this day.
A robot, like an Astartes Dreadnought, is the product of the synthesis of multiple advanced technologies required to construct its armoured shell, artificial muscle and nerve bundles, power plant, weapons control systems, equipment interfaces and central neural cortex. The forges of the Adeptus Mechanicus turn out many robots of the age-old designs stored within the core memory of their logic-stacks. For example, both the Castellan and Crusader pattern robots are known to have fought on the side of both Loyalists and Traitors during the Horus Heresy. The designs have remained virtually unchanged since that time, with perhaps only minor cosmetic differences and variations.
The compatibility of the near identical components shared with the Dreadnought simplifies many supply and repair problems on the battlefield. It is not unknown for Legio Cybernetica cohorts to have been cannibalised out of existence to provide spare parts for Dreadnoughts. In return, Legio Tech-adepts have not been adverse to dismantling Dreadnoughts, sometimes killing its occupant in the process, when making battlefield repairs. Such actions are not well-regarded by any Space Marine Chapter which should catch a Legio Tech-adept actually killing a Dreadnought Battle-Brother to save his or her mechanical "pets."
Cortex and ProgrammingEdit
Constructed from artificially engineered neuroproteins and enzymes, the cortex is the artificial brain of a robot. Imprinted with simple maintenance, task and movement algorithms, the cortex serves as a rudimentary mind, enabling the robot to obey simple instructions from its assigned Tech-adept when away from the battlefield. These "firmware" routines are often patterned after those which exist in the organic neural cortexes of simple living creatures. It is known that a robot commonly develops a canine-like devotion to its technician-master.
Before deploying a robot into battle the firmware routines are overlaid and replaced with so-called "wetware"; this is the robot's combat software which defines the commands of its handler. For example, wetware contains a set of algorithms that tell a robot where it is to deploy on the battlefield or when to fire its weapons or detonate its self-destruct charges. This specialised software is held in small slices of bioplastic, no larger than a credit card, which have been implanted within the robot's cortex. Believed by the Tech-priests of the Mechanicus to hold the robot's "soul", its Machine Spirit, many warriors on the battlefield are known to take these small bioplastic cards from a "dead" robot that has been incapacitated. They believe that by doing so, some of the robot's bravery will pass onto them. Even some Astartes Chapters have been known to abide by this tradition.
In many situations a robot may be less effective than a living warrior, even though its reflexes and aim may be comparable, and it is a stronger, tougher and harder opponent to "kill" than a human soldier. Literal-minded to an inhuman degree, a robot is limited by its programming. Whatever the given situation, a robot always follows its pre-prepared programming, even when such programming will not produce the correct outcome for a given situation. Where a human can easily adapt to unexpected developments, a robot may not possess the mental adaptability required to successfully navigate the demands of a rapidly changing battlefield.
Like any other weapon system, a robot without its cortex is as useless as a Bolter without its Space Marine. Without an operational cortex the robot is merely a heap of junk that can only take whatever punishment is meted out to it, but with a fully programmed cortex, a robot can prove itself the equal of many other opponents on the battlefield.
Slave and Master SystemsEdit
In some situations robots do not need a cortex to be fully operational, as they also possess the ability to act as the "slave" of a "master" robot, receiving orders by wireless radio communication from the master robot. The master robot is fitted with a cortex and wetware program, which in turn, relays algorithmic instructions to the slave robots fitted with standard Vox communicators. Each of these slave robots follows the instructions of the master's program in turn. But the master robot must remain in close proximity to its slave robots, for if it were to move beyond the effective range of its Vox transmitter the other robots would simply freeze in place, lacking the necessary instructions to carry out any operations.
Should six or more of its communicator signals be jammed, a slave robot cannot perform any actions, and will freeze in place until further instructions are received. If the master robot's program or cortex are damaged all of its slave robots are affected equally. Communicator damage to a slave robot means that it can no longer receive or transmit data, grinding to an immediate halt. Any damage to a master robot's communicator brings all its slave robots to a halt. Any other damage to the master robot's other systems has no effect on its slaves.
Any number of slave robots can be controlled by a single master robot, although the usual ratio is 1 master to 3 slaves. When a larger ratio is used, damage to a master robot's program can halt too many slave robots in a single stroke.
Over the centuries the Legio Cybernetica has produced many robot designs. Many proved to be successful, and the Legio has kept the five most common Imperial battle robot designs in its inventory for most of the Imperium's long and bloody history. Some of these designs were utter failures, such as the disastrous Castigator-class, which was so heavily armoured it moved slower than the troops it was designed to protect and support. Its survival capability was negligible as it was only outfitted with meagre weapons -- a single Bolter.
- Baharat- The Baharat-class robot was designed for battling many unarmored foes at once. Standing at four metres tall, it is a mass of metal and muscle with two shoulder-mounted rotary autocannons, its featureless facemask looking down upon its foes as it mows them down with an unrelenting barrage.
- Castellan - The Castellan-class robot was designed for general-purpose combat and assault and is also ideally suited for a wide-range of battlefield situations. It is armed with a Power Glove on each arm as well as a Heavy Bolter mounted above its chassis for additional protection and ranged firepower. This standard configuration makes it particularly effective in siege and anti-vehicle roles, and provides an effective compliment to heavy weapon armament.
- Castellax - The most common pattern of the widespread Castellan-type battle-automata in service, the Castellax is a general battle unit developed during the Great Crusade from its ancient forebear. Primarily intended for siege work and shock assaults, the Castellax Battle-automata is a hulking humanoid machine with a notoriously aggressive and responsive Machine Spirit, and an enviable reputation on the battlefield. The Castellax, employed in units of one to five by the Legio Cybernetica, has a standard configuration of Bolter and Bolt Cannon armament, and is able to maintain a punishing barrage of firepower as it advances.
- Kastelan - A huge, ancient robot class built ten thousand standard years ago, the Kastelan robot is a perfect example of the Adeptus Mechanicus' repurposing of technology. Nearly unstoppable, their only flaw is that of any mere machine; they will follow instructions to the letter, even if this results in their own demise. A specialist Tech-priest -- the Cybernetica Datasmith -- must constantly update and reprogram the Kastelan via order dataslates, lest this enormous, clanking robot simply stride blindly into a nearby chasm. Make no mistake, however; when his controls are set to destroy, the Kastelan will destroy. Kastelan robots are armed with such options as two sets of Power Fists or a pair of twin-linked Phosphor Blasters, and a choice of carapace-mounted weaponry, either an Incendine Combustor or yet another Phosphor Blaster.
- Cataphract - The Cataphract-class robot is a heavily-armoured general-purpose battle robot designed for use in almost all combat environments and situations. This versatility in a wide range of battlefield roles makes this war engine a highly-deployable and popular machine among the Legio Cybernetica's cohorts. This robot can mount a variety of weapons for various purposes, the most common being one Lascannon above its chassis and a Bolter mounted on one arm and one Flamer mounted on the other. It is often regarded by some Imperial commanders as a jack-of-all-trades.
- Colossus - The Colossus-class robot was designed to function primarily as a siege weapon. Its standard configuration combines a Siege Hammer mounted one of its arm appendages for attacking fortifications with a Bolter mounted on its other arm appendage for use against defending troops. The Siege Hammer can also be used in close combat situations. It also possesses a chassis-mounted Multi-Melta for additional firepower. The Colossus is often employed by the Imperial Guard as a cheap alternative to the use of heavy artillery. A few Colossus-class robots are maintained by the Ordo Reductor of the Adeptus Mechanicus, mainly for testing new and experimental siege weaponry.
- Conqueror - The Conqueror-class robot was designed for use in battlefield situations where heavily-armed resistance is expected. Its combination of potent firepower combined with heavy armour is a major benefit of its design. On one of its arms is mounted an Autocannon, on the other a Power Fist. Above its chassis is mounted a Heavy Bolter for additional firepower. The Conqueror is ideally suited for assault, anti-vehicle and anti-Dreadnought roles on the battlefield.
- Domitar - Accorded by most observers to be the last class of battle-automata to enter production on multiple Forge Worlds before the outbreak of civil war, the Domitar was a sophisticated variant of the ancient Conqueror pattern. Larger than the more common Castellax alongside which it would serve, the Domitar was also swifter, designed to cross the open battlefield at speed, and built expressly to crash into the enemy with shattering force. To this end the Domitar's shock-protected and armoured frame was itself a weapon, while its blows were amplified to colossal proportions by the battle-automata's inbuilt gravitational hammers, allowing it to pulverise battle tanks and, as it would later prove, even Legiones Astartes Dreadnoughts in combat. As a line-breaker, the Domitar was unparalleled in the Mechanicum's arsenal, and its tactical flexibility was further augmented with a missile launcher armed with a variety of munitions.
- Crusader - The Crusader-class robot is designed for agility, as it can move quickly on the battlefield and strike a telling blow. It is a light combat robot, and it is only lightly-armoured. It is most often employed in an anti-personnel mode, and has proven to be very popular with the forces of the Inquisition and other groups like the Adeptus Arbites, due to its effectiveness in mutant-hunter/killer operations. The Crusader is never used where heavy resistance or strong concentrations of enemy armour are expected. The Crusader is typically armed with dual Power Swords on each arm, and a chassis-mounted Lascannon.
- Vorax - The Vorax-class battle-automata is a hunter-killer unit created from the ancient and revered Crusader template pattern said to date back to the Dark Age of Technology and which may be found on every major Forge World in the Imperium. Created on pre-Imperial Mars to fulfil the roles both of search and destroy weapon and exterminator of rogue machines and mutant vermin, their Cybernetica cortex engrams are known to be particularly predatory and vicious examples of their kind. Such are the bestial instincts that sleep within their blast-steel and ceramite bodies that numerous cut-outs and override cantos are hard-wired into their control programming to prevent these tireless hunting machines from devolving into becoming like the renegades they prey upon in the shadows of the great forge-fanes on Mars. Armed with a pair of rotor cannon and a lightning gun, the Vorax are prepared to meet most threats. At close quarters their battle-automata power blades make short work of even heavily armoured infantry units.
- Scyllax - No larger than an armoured man, the Scyllax Guardian-automata demonstrates formidable power in a more compact frame. These sophisticated machine-creatures are neither a true battle-automata, lacking a cybernetic-cortex, nor are they a true-Servitor class as their organic component is almost negligible, reduced to the ossuary skulls and human neural tissue harvested from sources best left unknown. Their armoured carapaces, as durable as Adeptus Astartes battle plate, house instead powerful electro-thermic reactors and banks of lucid cogitator-stacks that process a storm of battlefield analysis engrams and protective tech-incantations, a system so potent some claim it borders on the blasphemy of the Silica Animus. Prized far beyond the servo-automata form which they were developed using ancient secrets uncovered during the Great Crusade, Scyllax are found in the retinues of only the highest ranking magos, where they serve as bodyguards and elite shock troops. Though there are some factions within the Adeptus Mechanicus who will have no truck with the Scyllax, claiming sinister provenance for its design, and that the automata gain a subtle and dangerous self-awareness over time.
- Thanatar - The Thanatar-class Siege Automata is a heavy class Imperial robot utilised by the Legio Cybernetica during the Great Crusade and Horus Heresy eras of the late-30th and early 31st Millennia. Designed as a mobile artillery platform rather than a general battle unit, it is armed with a Hellex Pattern Plasma Mortar. This is a terrifying weapon able to launch dense spheres of blazing plasma on arcing trajectories over defensive barriers and into the heart of enemy fortifications, incinerating anything in their blast radius with a liquid tide of sun-hot fire. The Thanatar 's frame, built to accommodate the huge weapon and the power systems and fuel reserves required to supply it, is considerably larger than even the hulking Castellax-class Battle Automata. Its frame is also heavily reinforced, both to withstand the stresses of firing its principal weapon and to protect it from incoming attacks. This factor, alongside the use of an Atomantic Shield array, make Thanatars notoriously durable. Such is their resilience that Thanatars are beyond the ability of most small arms, no matter how advanced, to harm. It is not known if this particular class of heavy-siege automata is still utilised by the mysterious Legio Cybernetica in the late 41st Millennium.
- Thanatar-Calix - A variant of the Thanatar-class Siege-Automata developed during the latter part of the Great Crusade, rumours persisted that this extraordinarily powerful variant of the Thanatar was the work of the combined efforts of the Sollex Myrmidon and Omega-Shevar covenant of the Ordo Reductor, alongside unknown representatives of the Legio Cybernetica. The Thanatar-Calix combines the deadly tech-arcana of all three of these secretive factions into a single devastating weapons platform geared towards the vanguard of siege assault warfare, able both to sunder the strongest fortifications in moments and conduct targeted strikes to neutralise defensive batteries or turret emplacements with the lethal fire of is Sollex heavy lascannon. These rare siege-automata were held as sacred by the Taghmata and Ordo Reductor covenants which fielded them, as well as signs of particular prestige within the Cult Mechanicus, and were seldom committed to battle without supporting escorts of lesser battle automata and guardian-automata in the field to protect them in their perilous duties.
- Thanatar-Cynis - Unlike the lauded Thanatar-Calix, this variant of the potent Thanatar-class Siege Automata, known as the Cynis, was met from its creation by the magos of Estaban III with ill-fortune and acrimony. An unashamed attempt by the Mechanicum faction on Estaban to increase their power within the order of the Machine God's domains, the Cynis was intended to replicate the Thanatar siege-automata on a wider scale. By doing so, the magos of Estaban perhaps hoped to further usurp the sometimes troublesome Forge World of Ryza's importance in the eyes of the Fabricator-general. Without Ryza's mastery of plasma-arcana however, the Cynis proved an unstable and often self-destructive design, despite its obvious battlefield power; its machine spirits were equally believed to be erratic and malevolent by those adepts whose task it was to tend them. Regardless, the Fabricator-General approved its design over the strong objectives of Ryza, worsening the feud which had broken out between Ryza and Estaban III, although the production of the class was far less successful than hoped. Accusations of sabotage and malifica by Estaban on the covert agents of Ryza were commonplace before the outbreak of the Horus Heresy, and when Estaban declared for the Traitors and Ryza the Loyalists, bitter blood could at last be settled with iron and fire.
- Other Classes - The Legio Cybernetica also operated many other classes of battle-automata, including the Lamba Zeta-01 Combat Class Robot, the Delta Omega-03 Combat Class Robot, and the Rho-Tau 17 Surveillance Class Robot.
Once employed by the forces of the Imperial Army and the Space Marine Legions, robotic cohorts are now exclusively used by the Legio Cybernetica. In ages past, the Legio Cybernetica was organised into several thousand cohorts, although only a small percentage of these were ever active at any given time. Each of these robot cohorts were in turn organised into maniples of 3, 4 or 5 robots led by a Legio Tech-adept. Numbering rarely more than 100, the number of maniples within a cohort could greatly vary. However, a cohort was usually spread across an entire Astartes force of several companies or a single large Imperial Army force. The use of more than 4 or 5 maniples in a battle was rare, but not unknown. During the Horus Heresy, particularly large numbers of robots were committed by both the Loyalists and Traitors in an effort to minimise human casualties until a decisive final battle could be fought. In addition, the organisation was further divided into a number of sects.
A few of the ancient Legio cohorts claim that their robotic war engines date, in part at least, back to the Great Crusade or possible even before to the Age of Strife. As robots are often cannabalised to provide spare parts for their damaged brethren, there may be some validity to these claims. When properly maintained, the lifespans of Imperial technologies can span many millennia. It is indeed possible that a robot's leg, arm, or cortex has been in constant use for ten thousand Terran years or more.
A Legio Cybernetic maniple is a virtually self-contained unit, with a single Tech-adept typically overseeing the management of four units on the battlefield. The Tech-adepts do little more than give the robots their final wetware programs and then monitor their progress. However, they are also charged with the equally vital task of monitoring the progress of their maniple, and to ensure that a damaged robot is destroyed as quickly as possible, to avoid any possible danger to their own side during combat. This is accomplished by remotely activating the robot's self-destruct system. There are also a number of other, lesser Tech-adepts attached to the maniple who perform all of the maintenance and repair functions for the robots assigned to the maniple, though their presence on the battlefield is rare. Possessing the ability to repair virtually any item of Imperial equipment, it was often said during the Great Crusade that these Tech-adepts of the Legio Cybernetica were worth their weight in spares.
The forces of the Inquisition also put the robot cohorts of the Legio Cybernetica to good use. As robots are by their very nature utterly incorruptible by Chaos, they make ideal weapons to use against the many enemies of Mankind. Their pre-programmed, non-biological nature makes them perfect engines of destruction against mutants and other Chaos-contaminated populations. The terror value of robots has not gone unnoticed by the Inquisition, as they are often used against under-prepared and under-armed troops. Combined with their unwavering loyalty, robots have made valuable additions to the Inquisition's forces. Robot cohorts attached to the Inquisition are usually staffed by their own Technician-Inquisitors rather than a Tech-adept of the Legio Cybernetica, as robots have proved to be pure and incorruptible, whilst men are not. This was proven during the dark days of the Horus Heresy.
Notable Imperial RobotsEdit
- Incarnadine - Controlled by the Tech-adept Xi-Nu 73, Incarnadine was a Conqueror-class War Robot. Beside its three counterparts, Incarnadine comprised the 9th Maniple of the Carthage Cohort of the Legio Cybernetica. The 9th Maniple was attached to the 1301st Expeditionary Fleet of the Word Bearers Space Marine Legion. This Imperial fleet was commanded by Seventh Captain Argel Tal of the XVII Legion's Serrated Suns Chapter. Incarnadine was the Primus of the 9th Maniple. Almost human in its posture and gait, Incarnadine was armoured with thick platiing and bore weapons for arms. A third cannon rose from its shoulder, with ammunition belts trailing down its back, dreadlocks of bronze shells rattling with each step. It wore a Word Bearers Legion banner over its shoulder, and its armour plating was painted in proud black and scarlet livery and etched with Colchisian runes. A few rare units of the Carthage Cohort had oath parchments and scrolls of scripture bound to their armour plating, marking them as particularly accomplished in battle. These robots, from a variety of classes and designs, were enrolled in the Fidelitas Lex's archives as honorary members of the Word Bearers Legion. Incarnadine was one of them. The robot bore the serrated sun icon of the Serrated Sun Chapter, plated in gold upon its forehead. Such an honour was tantamount to the highest accolades in the Legio Cybernetica, and evidence of the commanding Adept's mastery -- such a machine clearly had a spirit of fierce intensity, and was worthy of recognition. Despite the usual cold indifference paid by the Astartes towards the Adepts of the Carthage Cohort, Incarnadine was sincerely respected by the Word Bearers, who reverently referred to the Conqueror Primus as "Brother." But since the robot's induction into the Serrated Sun, and the etching of the Chapter's sigil onto the robot's forehead, the Incarnadine had become much more erratic. Even after Xi-Nu 73 purged the robot's cortex, the discrepancies would resurface after each maintenance. This flare of perception, along with the faintest adjustment of its visual receptors, only ever occurred in the presence of the Word Bearers. Like an animal instinctively recognising its kin, Incarnadine knew when warriors of the XVII Legion were near, despite the fact that it should not be able to perceive anything at all beyond the presence of walls and floors. This ability was the first hint that the taint of Chaos enveloping the XVII Legion could affect machines as well as men.
- Codex Titanicus (1st Edition)
- Horus Heresy: Collected Visions (Art Book), pp. 92, 131, 304, 326, 328, 384, 392, 402, 405, 412
- Realm of Chaos: Slaves to Darkness (1st Edition), pg. 240
- The Horus Heresy - Book Three: Extermination by Alan Bligh, pp. 212-213, 223, 226
- The Horus Heresy - Book Four: Conquest by Alan Blight, pg. 291
- The Horus Heresy - Book Five: Tempest by Alan Bligh, pp. 223-227
- Warhammer 40,000 Compendium (1st Edition), "Imperial Robots," pp. 67, 96-112
- White Dwarf Weekly Magazine #67 (09 May 2015), "Kastelan Robots," & "Focus On...Ancient War Machines," pp. 4-12
- White Dwarf 112 (UK), "Adeptus Titanicus: Conqueror! - Robots in Adeptus Titanicus," by Jervis Johnson, pp. 68-72
- White Dwarf 104 (UK), "Chapter Approved: Imperial Robots," by Mike Brunton
- A Thousand Sons (Novel) by Graham McNeill, pp. 101, 103, 107, 115, 246
- First Heretic (Novel) by Aaron Dembski-Bowden, pp. 9, 43, 100-102, 104, 108, 114, 186, 187-193, 195, 203, 234, 236, 425-429
- Nemesis (Novel) by James Swallow, pp. 126-127, 129, 132, 133-136, 138
- The Talon of Horus (Novel) by Aaron Dembski-Bowden, pg. 61
- Forge World - Mechanicum Domitar Battle-Automata
- Forge World - Castellax Battle-Automata
- Forge World - Castellax Battle-Automata with Darkfire Cannon
- Forge World - Castellax Battle-Automata with Multi-Melta
- Forge World - Thanatar Siege-Automata
- Forge World - Thanatar Calix Siege-Automata
- Forge World - Vorax Battle-Automata
- Games Workshop Online Store - Adeptus Mechanicus Kastelan Robots