The Antiverse is an aged world in its first stages of heat death.
Elyium is an alternate reality game which takes place in a limbo realm.
Entropica is a world with inverted entropy.
The Multiverse is the collection of all universes in the third dimension.
Mythaphil is the major region of a lush jungle planet sharing the same name.
QU-6, m_struct #760.
Qurotema is an off-limits construct universe.
The Voxelverse is a construct world with spatial curiosities.