Aber
7 Degrees of Freedom, Delusion MUD, Forbidden Lands, Northern Lights AberMUD, TerraFirmA, The AberMUD Depot
Chats and Forums
Conferences, Gammon Software Solutions Forum, MUDShell, The MUD Connector, Top MUD Sites
Clients
Amiga, Linux and Unix, Macintosh, Windows, Clio Mud Client, eMUDs, GGMud, MudMagic Mud Client, Papaya, tkMOO-light, Trebuchet, wxMUD
Custom Driver
Avalon, Fantasy, Inferno, Abydos, Alternate Universe MUD, Angalon, Banished Lands, Banished Lands, British Legends, Dawn of the Ages, DestinyForge, Forest Edge Building Manual, LegendMUD
Diku
Avatar, Building, Circle, Merc, Mortal Realms, AlexMUD, Alter Aeon, Alter Aeon Help Site, Apocalypse V Mud, Arctic Mud, Armageddon, Ashavar's Legacy, Continents, Criterion MUD, Curiosity's Shadowdale Site
Directories
Amberyl's Almost-Complete List of MUSHes, Book-themed SF/Fantasy M**, Deutsche MUD-Liste, Lysators MUDs, Maelstrom: MU*/Talker Listing A to Z, MudNow, MUSH Warehouse: MUSH List, Realms of the Imagination, Rhal's Furry MU*s Connector, The Complete Abermud List
Graphical
Furcadia, Tibia, Fragmere, IBGames, Kowh's Labyrinth, Realms of Kaos, Rise of Myrmidon, Shadow Worlds, Wyvern
Hosting
Ancient Realms, Arthmoor Internet Services, Asylum Server Talker and Web Hosting, BetterBox.net, Crodo Hosting, Crystalsands Hosting, Digital Genesis Technologies, Divine Right : A free host provider, Dune Internet, ECI Games
LP
Ancient Anguish, Discworld, Everdark, Fantasy, Genesis, LPC, Realms of the Dragon, Science Fiction, Katmandu's LPMUD Descriptions
MajorMud
Board Pages, @Mud, Adonis MajorMUD Page, Bloodquest Forums, Budds' Unofficial MajorMUD Page, Doubtful's Maps Page, GChaos's Guide Of The Real World, LLT MajorMUD Forums, Major Mud Products, MajorMUD - Realm of Legends, MajorMUD Forums
MOOs
Clients, Directories, Educational and Research, FAQs, Help and Tutorials, News and Media, Programming, Roleplaying and Fantasy, Server Patches, Social
Mordor
Isengard, Adventures in the Lands of Stone, Building a Mordor Mud, Hrielith, Mordor MUD, The Lands of Stone
MUCKs
Anime, Fantasy, FAQs, Help, and Tutorials, Other Themes, Players, Programming, Science Fiction, Servers, Social, Mink: The MUCK Information Kiosk, Muck.org, tcp.com: /pub/mud/servers/muck
MUSH
Anime, Comics, Fantasy, MUSHcode, Resources, Science Fiction, Social, World of Darkness, Altered Dimensions 3 MUX, Armageddon MUSH, Atlantis MUSH, Buffy the Vampire Slayer MUX, Carnipelago MUX, CrystalDreams MUSH, Fading Suns MUSH, Final Fantasy MUX, Fort Bloodshed, GodfatherMUSH
Player Pages
A player guide to Mozart Mud, Arctic MUD: Red Goblins Brigade Logs, Arumas's Prophecy Homepage, Caen's Domain, Calysta of Lensmoor, Cecil's Realm, Clandestine Revealed, Dragotha's Den, Fandra's Realm, Ronin Mud Adventurer's Website
Protocols
InterMUD Communications, MUD Client Compression Protocol, MUD Client Protocol, MUD Extension Protocol, MUD Sound Protocol, Client Protocol Support
Resources
Building, Agora, Harley Hahn's Guide to Muds, Mac OS MUDding Resource, Mud Magic, MudWorld
Roleplaying
Adventure, Fantasy, Horror, Resources, Science Fiction, Lythlandria's Batmud Castle, Myriad Magic, Netherland, Nodeka, Shades, Shades of the Past, TalesMUD, Terris - Ranger Guild Scribe's Office, The Sentaari handbook, TriadCity
Server Software
Diku, Java, LP, Macintosh, MOO, MUSH, 16K MUD Competition Results, Bluemud, CGMUD, CoolMUD Server, DUMB MUD, EmberMUD, FTP.GAME.ORG Mud Archive, Kanga.nu MUD Server FTP Archive, KoalaMUD, Majik 3D
Web Rings
Armageddon, Association of MajorMUD Professionals, ChaotixMUX, CheesyMUD, Dawn of the Dragon, Dune Online Community, EmberMud, Furcadia Downloads, MU* Listing, Mudconnector TMCRing
About.com: Multi-User Dungeons
Article featuring background information and resources.
An Atlas of Cyberspaces - MUDs and Virtual Worlds
An atlas of maps and graphic representations of the geographies of the new electronic territories of the Internet, WWW and other emerging Cyberspaces.
Basic Information about MUDs and MUDding
FAQ about MUDs and MUDding.
Code begets community
Information about Daniel Pargman's Ph.D. thesis on the social and technical aspects of managing a virtual community, a study of a Swedish MUD. Sample chapters in PDF format.
DikuMUD Family Tree
Listing of MUD codebases by heirachy for Diku and all code bases.
Journal of Virtual Environments
Academic journal devoted to MUDs and their uses. Formerly known as the Journal of MUD Research.
MUDdy Waters
Detailed information about the MUDding community. Features reviews, resources and message boards.
MUSE Ltd.
Purveyors of fine, online games since 1985; principal products are MUD2 and the MUDDLE programming language and development system, both available for commercial licensing.
Open Site
An article with an explanation of what MUDs are, an overview of their history, and a list of variants.
Richard A. Bartle: Players Who Suit MUDs
Discusses whether MUDs are games, pass times, sports or entertainments and suggests four kinds of player: achiever, explorer, socializer or killer.
The Center for Imaginary Environments
Supports reality modeling technology and multi-user environments. Members are active in the development of mud software using the LPC and Java languages.
Vae Victus
Contains news, logs, history, and a message board.
XYZZYnews: Dungeons, Dragons, Shovels, and Telepat
A brief look at MUD design, by Miron Schmidt.