Crucible:Hundred Worlds
The Hundred Worlds is a vast inter-dimensional empire composed of multiple dimensions, pocket universes, and alternate time streams. The Hundred Worlds is ruled from Memnon, a highly advanced planet physically similar to Earth, but far more technologically advanced, and home to an alternative human race. The Memnonites long ago mastered the art of interdimensional travel and used it to build their empire.
The Hundred Worlds were thrown into chaos when the interdimensional being called the Terror invaded. The chaos is ongoing, as the civil war between imperial houses goes on.