Only the box is a world of its own.
Elysium is the great City in the Sky that was built into the surface of Pandora's nearest moon. It is the seat of power for the Alliance, by far the largest governing authority within the Cosmic Wilderness. At a glance, Elysium is a technological marvel whose skyline is an artwork of gleaming spires and futuristic luxuries, and whose citizens want for nothing. Everyone, however, is aware of the precarious balance between the gilded authoritarian might of the Overcity and the Undercity that is permitted to fester and prosper nearly unchecked below.