Multi-User Dungeons, or MUDs, were some of the first multiplayer online games. The game called MUD was the invention of Roy Trubshaw and Richard Bartle, but a bewildering variety of clones emerged over time: AberMUD, DikuMUD, MOOs, MUSHes, and more. In addition to gathering documentation on MUD history, the ESS plans to host active MUDs. AberMUD ------- AberMUD was the first open source MUD. A number of versions were released over the years, but it was primarily developed by Alan Cox, a name which is well known amongst the open source community. Among other things he was the maintainer of the 2.2 branch of the Linux kernel. (TXT) AberMUD History(via a forum post by Alan Cox) (DIR) AberMUD Files Off site links: (HTM) A Classification of MUDs, by Martin Keegan