I do not believe in immortality, and have no desire for it. - H.L. Mencken

The realms of Necromundus include:

Necromundus, City of the Dead
Cataract
Urland
Ascendant Aspect
Descendant Aspect
Hiverspace

Necromundus, City of the Dead
The surreal heart of the hereafter is Necromundus, a city that bears the name of the overall "world," for it is the gateway to all other possibilities. The recently dead resume consciousness in this city, and it is here that they choose a new destiny in the netherworld. Necromundus features the Portal Plaza, with doorways that lead to other realms, such as Urland and Cataract.

Cataract
A traditional fantasy-style realm, with monsters to kill, good deeds to be done and madmen to thwart.

Urland
A post-apocalyptic realm defined primarily by a deserted stretch of highway, a theme park overrun by mutants and monsters, and a ruined city.

Ascendant Aspect
Angels of Necromundus pit themselves against manifestations of evil in the twin pillars of Cloud Nine to try and swing the balance in favor of Good.

Descendant Aspect
Demons of Necromundus battle manifestations of good in the Ring of Fire to try and swing the balance in favor of Evil.

Hiverspace (Subscribers Only)
Space opera adventure beyond OtherSpace's multiverse nexus, starting aboard Comorro Station.