Additional
Information: MUDs or MUD-like games that let you interact with the world graphically. Generally they use specialized client programs and will not work with standard MUD clients.
IBGames IBGames: Dedicated to bring the best in multi-player games, where interaction occurs with hundreds of other players in a variety of exciting environments. Games are designed to appeal to the thinking adult. (Graphical) http://www.ibgames.net
Rise of Myrmidon Rise of Myrmidon: Join forces with fellow adventurers in a persistent world multiplayer game. Make friends and take sides. For if you side with goodness, you must stop the rise of Myrmidon. (Shockwave) (Graphical) http://www.battleatlantis.com/games/mud/
Wyvern Wyvern: Coded in Java. Includes detailed player guides and a downloadable map editor. (Graphical) http://www.cabochon.com
Shadow Worlds Shadow Worlds: A free role playing game. Features information on players, maps, downloads and a forum. [Russian version also available]. (Graphical) http://shadow-worlds.igray.ru
Kowh's Labyrinth Kowh's Labyrinth: A labyrinthine forum for tales of Illusia: Quest for the Eternals, as told by the Minotaur Knight M'Kowthis At'hor. (Graphical) http://erekose.home.pipeline.com
Fragmere Fragmere: A customizable graphical MUD. Features documents, downloads, forums, and screenshots. (Graphical) http://www.fragmere.com/
Realms of Kaos Realms of Kaos: A role playing adventure. Features message boards, rules, chats, downloads and FAQs. (Graphical) http://realmsofkaos.com/