Shadow Shard Universe
From CoH Comic Index
The Shadow Shard is classified by the Portal Corporation as in inter-dimensional universe. This is the home not only of the Pocket D nightclub (and the Ski Chalet), but also where the god Rularuu is imprisoned thanks to the Midnight Squad.
The most noteworthy part of the Shadow Shard universe is the fact that there are no "planets" in this universe. There are only floating islands that are connected by gravity geisers. If you can fly, leap, or teleport, you can travel in this universe. Otherwise you will need to either get a jet pack or figure out how to use the gravity geisers.
(See the Shadow Shard's Paragon Wiki entry for more information.)