From the dark depths of the Segmentum Pacificus, a fresh alien threat stretches forth tendrils towards Holy Terra itself. Seething Tyranid invasion swarms pour from the void in incalculable numbers, devouring world after world in their slow but relentless advance toward the Segmentum Solar. Resolved never to permit such horrors, the Imperium's greatest war leaders rush to meet the xenos invasion with a devastating counter-offensive of Solblade Fleets. Yet the Hive Mind is possessed of infinite cunning and terrible hunger, and its plans may yet undo Humanity altogether…

Vashtorr the Arkifane, daemon demigod of the soul forges, has fixed his gaze upon the Rock. Somewhere deep within the spacefaring battle station and fortress-monastery of the Dark Angels lies a prize that the Arkifane will spend countless lives to seize. Gathering a terrifying Balefleet around him, riding to battle aboard the most vast and grotesque Ark of Omen yet, Vashtorr closes his ironclad talons around the heart of the Dark Angels Chapter and prepares to crush it.

The Black Templars are the most zealous of all Space Marines. To them, the Emperor is a literal deity, and there is no oath they will not swear, nor bloody act of battlefield worship they will not perform in his name.

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.