Wraithworld is the home to the Dire Wraiths that circles a black sun located within the Dark Nebula.

Wraitworld has rivers of molten metal and acid rain strong enough to damage the plandanium armor of a Spaceknight and even the armor of the mighty Galactus. Galactus was unable to consume Wraithworld or it's black sun.

Wraithworld was sent to Limbo by the Dire Wraiths greatest enemies - the Spaceknights.