“Over twenty years ago, Rick Rashid, the senior vice president of Microsoft Research, came up with an idea. Networked games. The idea was ahead of its time. Today, millions of people all over the world play and compete in multi-player online games.
Rashids original game gathered a loyal following. He developed his ideas into the game Allegiance, which Microsoft shipped in 2000.
Now Microsoft Research is releasing the Allegiance source code. “
Must try this although the source code download is rather big: 512 MB.