Alternity Roleplaying Game

Alternity and Beyond
Gives details on Alternity worlds, starships, orbital installations, characters, and robotics involved in the game.
AstraDX
Presents a campaign setting for Alternity RPG usable in other games as well.
Big Ideas, Grand Vision
Presents hard-science RPG setting written by Anders Sandberg in 1999.
Li Po's Alternity Page
Offers MS-DOS character generator and spaceship generator for use in Alternity RPG.