“There is a terrible darkness descending upon the galaxy, and we shall not see it ended in our lifetimes.”
— Inquisitor Bronislaw Czevak at the Conclave of Har

The Necrons are a mysterious race of robotic skeletal warriors that have lain dormant in their stasis-tombs for more than 60 million Terran years and who are the soulless creations and former servants of the ancient C’tan, the terrible Star Gods of Eldar myth. The Necrons are ancient beyond reckoning, predating even the birth of the Eldar. At long last, however, they are beginning to awaken from their Tomb Worlds, for the galaxy is ripe for the greatest harvest of sentient beings to feed the eternal hunger of the C’tan since the disappearance of the Old Ones 65 million standard years ago. The Necrons are a completely cybernetic humanoid species whose technological prowess is probably unmatched by any of the other intelligent races of the galaxy. Yet out of a desire for vengeance against the more fortunate long-lived ancient xenos race called the Old Ones, and the trickery of the godlike intelligences known as the C’tan, the Necrons shed their organic forms and lost all forms of compassion and empathy, becoming ruthless, undying killing machines who feed their endless appetite for the life energy of organic beings and whose different dynasties are determined to exert their mastery over the galaxy once more.

The Necrons are still a shadowy presence rather than a full-fledged force in the galaxy of the present time. They strike out of nowhere without warning, wreak havoc and leave before any major reinforcements can arrive. The origins of these various attacks and their motives are unknown, though it is known that the current Necron forces in the galaxy are only soul harvesters, not the full-fledged fighting machines of the C’tan.
They seem to attack from nowhere often simply appearing at nearly any location in the galaxy, no matter how well-defended. Once in the recent past they touched down on Mars, simply passing by the Imperial Navy fleets protecting the Sol System unnoticed, and ultimately casting doubt on the impregnable status of Terra itself. The Necrons reached the Red Planet’s surface and explored its subterranean Noctis Labyrinthus, perhaps in search of one of their C’tan masters, believed to be the Dragon of Mars, before being destroyed by the agents of the Imperium. This incident, however, is a heavily guarded secret within the Imperium of Man, which greatly fears that the Necrons may awaken the C’tan known as the Void Dragon which inhabits a stasis tomb beneath the sands of Mars. At the same time, the Imperium has been unable to capture a Necron in an attempt to learn their secrets; entire Necron forces simply vanish into thin air using their phase technology — and they always take their “dead” with them.

The Necron forces come from Tomb Worlds as yet uncharted by the Imperium. Their phase technology allows them to deploy anywhere in the galaxy, almost instantaneously through unknown means, since the Necrons are incapable of entering the Warp. In defeat, they “phase-out” and return to their associated tomb-world for repairs. Any Necrons that have fallen in battle can be repaired there and re-animated so their losses thus far have been minimal. Should a Necron be totally annihilated in battle, then they are truly beyond phase-out or repair, but again, often so little survives that Imperial or Tau scientists (the only two races that want to know more about these deadly enemies) have nothing to study.

The Necrons may have infiltrated the Imperium to an extent. Their elite anti-psyker troops, the Pariah, are an unholy cross of human mutant and Necron technology. It is as yet unknown if the Necrons developed the Pariahs by themselves or with the help of Imperial traitors (or possibly even the deviant members of the Adeptus Mechanicus who worship the Void Dragon as their Omnissiah). But it is believed by Mechanicus savants that the C’tan had the Pariah Gene engineered into what became the human gene pool over 65 million Terran years ago. This gene has since manifested itself in the agents of the Culexus Temple, the specialized anti-psyker assassins of the Officio Assassinorum.


Rogue Trader: Season One bscarbeau