From publisher blurb:
Welcome to Eldruden Earth. God is dead and so are his Angels. Demons and Devils maraud the haunted landscape, where humans hang from the skies, Hell has fused with nearly ninety percent of the Earth, and the oceans, seas, rivers and lakes have turned to blood.
Humanity is threatened with extinction. Hell Storms frequent the remaining cities. Butcher men prowl the streets in packs, preying on innocents. Serial Killers are initiated into demonic cults where their deadly art is refined and skills honed.
Damnation contains ten Hell Classes Sinners can play (other than the Godchild) and is also usable by Hell Masters as a resource for NPCs.