Children of Fire is a text-centric RPG for Linux and Windows. It is based on Advanced Dungeans and dragons. It will contain computer generated worlds to play in.
As a side project, we're designing a lanuage that will be used in the game. The language is called COST, and will be distributed as a seperate package. COST compiles into P-Code.
So, far my knowledge of Linux extends to console mode, but I might be able to distribute it as an X-Windows application.