Warhammer 40k: Horus Heresy-1R
It is the 31st Millenium, in the final days of the Great Crusade to unite humanity across the galaxy into one grand, powerful empire. The Emperor of Mankind has retired to Terra... and is not trapped there, holding the chaotic Warp and the daemons it contains at bay with only the power of his will.
The Imperium of Man is now beset with civil war, as the Horus Heresy is in full swing. Legions of former loyal troops battle their former brothers, laying waste to entire worlds as an attempt is made toward Terra itself.