Aleph One is the open source continuation of Bungie's Marathon 2 FPS game engine. Aleph One plays Marathon, Marathon 2, Marathon Infinity, and 3rd-party content on a wide array of platforms, with (optional) OpenGL rendering, Internet play, Lua scripting, and more.
Using Aleph One
- Trilogy Release has more info about Bungie's original Marathon trilogy, including the game manuals.
- Traxus is a wiki about the Marathon universe.
- Marathon's Story details the plot and background of Marathon, including every terminal message.
- Marathon Spoiler Guide has maps and hints if you're stuck.