Aleph One is a 3D first-person shooter game based on the game Marathon 2 by
Bungie Software. It is set in a Sci-Fi universe dominated by deviant computer
AIs and features a well thought-out plot. Aleph One was originally a MacOS
game, but a cross-platform version ("Aleph One/SDL") based on the Simple
DirectMedia Layer (SDL) library is currently under development which runs under
Unix, BeOS, and Windows.