The Grey Knights are the lmperium's daemon hunters, a secret Space Marine Chapter of warrior-mystics. Clad in sigil-scribed power armour, they wield archaic weapons to channel their otherworldly abilities.

At the end of a long and bloody road, the armies of the Farsight Enclaves stand poised to secure final victory over the Ork hordes. As Commander Farsight's audacious attack reaches a critical stage, an Ark of Omen and its attendant Balefleet erupt from the warp to shatter the balance of the conflict.

The Arks of Omen have sown terror and death from one side of the galaxy to the other. Despite the efforts of those who opposed them, their masters have gathered enough arcane artefacts for Vashtorr the Arkifane to fashion his monstrous Key. The hour draws nigh when the daemon and the Despoiler will between them awaken this engine of terrible power.

Imperial Agents are ruthless, influential, and single-minded individuals, from Inquisitors to Rogue Traders, who command bands of grim specialists and lethal operatives in the service of the Emperor.

The Kin are a clone race of resilient and pragmatic warriors, who together form the ancient Leagues of Votann. They emerge from the tumult of the galactic core to conquer worlds, claim resources, and lay waste to any who dare to challenge them.

Fanatical devotees of Khorne the Blood God, the World Eaters Traitor Legion is formed of countless warbands who exist only to slaughter and take skulls in honour of their bloody patron.

The Adeptus Mechanicus go to war with cohorts of Skitarii cyborg templars, bizarre war engines, and the fanatical followers of the Machine God, led into holy war by their robed Tech-Priests.

The T'au Empire is a young and dynamic civilisation of technologically advanced aliens, spreading like wildfire across the stars as they seek to unite every sapient being under the philosophy of the Greater Good.

Knights are colossal suits of armour bristling with heavy weapons, employed both by noble houses of the lmperium and those fallen to Chaos. Regardless of their allegiance, they are capable of laying waste to entire enemy armies.

The zealous warriors of the Adepta Sororitas are the most devout servants of the Imperium. Singing praise to the God-Emperor, they embark on crusading Wars of Faith to smite the heretic, the mutant, the witch and the xenos.

The Necrons are a deathless race of alien androids, entombed in self-repairing bodies of living metal. In a long forgotten era, they ruled the galaxy. Now, having slumbered in stasis for millennia, they are rising up to conquer it again.

Chaos Space Marines are the Imperium's most bitter foes – warbands of genetically augmented killers, clad in baroque armour and sworn to otherworldly forces, festooned with the battle scars and trophies of their treachery.