The Dark Forty Thousand Years
Ten thousand years have passed since the Horus Heresy, and now the Great Rift has opened. Over the millennia, the holy Imperium of Man has been worn down by heretical rebellions, the revival of ancient evil gods, and a thousand years of internal chaos and strife. The reason, ambition, and technology it once possessed have been steadily ground away, replaced by superstition, fanaticism, and stagnation.
The Imperium's ancient nemesis, the Chaos Legions that have endured since the Horus Heresy, have also poured out of the Eye of Terror through the gaping maw of the Great Rift, driven by fury and hatred. The servants of the Black Goat, the princes of Slaanesh, the anointed of the one true god, Basilius Angron, and Abaddon the Despoiler are all eager to devour the decrepit Imperium. Beyond these servants of darkness, the survivors of the ancient empire have also begun their journey toward the revival of the Eldar, led by the newborn god of death and goddess of fertility. The green beasts, the Great Devourer, and the Necrons awakened from antiquity have joined the revelry of the Imperium's destruction.
Yet in this dark age, the Emperor's glorious son, the great Roboute Guilliman, has recovered from the wounds he suffered ten thousand years ago. The Indomitus Crusade continues, and the Imperium, teetering on the brink of destruction, will begin its final counterattack against the odds.
