In the game of Zoneplex, players take on the role of monks exploring the Zoneplex, which is some sort of spaceship that is apparently made up of zones. It may or may not be from Earth, because apparently nobody knows where that is any more, but apparently humans might have come from there and also built a Zoneplex.
There's something about a cataclysm of some sort, and facing Fears--oh, and something about a Zoneplex.