Humanity stands in a galaxy of war unending, locked in a struggle for its very survival. Divided by the Great Rift, the Imperium is beset on all fronts by its ancient foes. The daemon, the xenos, and the heretic.

In such a kiln, the heroes of war are forged. From the beleaguered foot soldiers of the Astra Militarum and the flying aces of the Imperial Navy to secretive Inquisitors and heroic Adeptus Astartes, the warriors of the Imperium fight amidst the guttering light of civilisation while chaotic warlords seek to snuff it out. With the galaxy at stake, who will be left standing triumphant in the ashes?