- 3Kingdoms
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- A Lucid Dreamer
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- Aarchon MUD
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- Abattoir
- Abeir-Toril
- AberMUD
- Accursed Lands
- Achaea
- Ack
- Act of War
- ActsMUD
- Adamant: World of the Rings MUD
- AddictMUD
- Adventures Unlimited
- Aeonian Dreams
- Aetolia
- AfterFive
- After Hours
- Afterlife MUD
- Age of Chaos
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- Age of Legends
- Age of Omega
- Age of War
- Ages of Despair
- Akanbar
- Akashat
- Aladon
- Alan Cox
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- Aldara III
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- Aldria Open Mush
- Aleksi Asikainen
- Alere Flammas
- AlexMUD
- Alhazi Invasion
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- Alternate character
- Altoria
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- AmberMUSH
- Amy S. Bruckman
- Ancient Anguish
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- Ancient Mists
- Anderland
- Andrew Gower
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- Angel
- Angelic Layer
- Angmar
- Anomaly TrekMUX
- AnotherMUD
- Another World
- Ansalon
- Ansible
- Apocalypse
- Arcane Nites
- ArcticMUD
- Arda
- Area
- Area Editors
- Arion
- Arkadia
- Armageddon
- Armor
- Astaria
- AustinMUD
- Avatar
- Avatar (game)
- Avatar MUD
- Avatar customization
- AwakeMUD
- Baldur's Gate
- Baldur's Gate (disambiguation)
- Bandwagon effect
- Banished Lands
- Barcellona By Night
- Barsawia
- Bartle Test
- BatMUD
- Bedlam
- Beleriand
- Beta testing
- Big Model
- Black Sands
- Boat
- Boiling MUD
- British Legends
- Browser Game
- BuffyMUD
- Bulletin board system
- BurningMUD
- CD gamedriver and mudlib
- CRPG
- C programming language
- Caerlon
- Cajun Nights
- Camp Half-Blood
- Camping
- Carrion Fields
- Cat Chat
- Cheeseplant's House
- Chiaroscuro
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- Chronicles of Ice and Sky
- Chronology of MUDs
- CircleMUD
- City of Heroes
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- Cleft of Dimensions
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- CoffeeMUD
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- Command
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- Computer-asssisted language learning
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- ConQUEST
- Consider
- CoolMUD
- Copper
- Copyover Recover
- Costello
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- Creator
- Criterion Mud
- Crossfire
- Crusify: The Chosen
- CrystalMUSH
- Curious Areas Workshop
- CyberASSAULT
- Cybersex
- Cygnus
- DBX
- DG Scripts
- DG scripts
- DS Alcatraz
- DSpace
- Daedal Macabre
- Daimonin
- DaisyMUD
- Dark Age of Camelot
- Dark Forces
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- Dark Skies
- Dark and Shattered Lands
- Darker Realms
- Darkness Falls
- Darkness Falls: The Crusade
- DartMUD
- David Bennett
- Dawn
- Dawn of Ages
- De Digitale Metro
- Dead Souls
- Death room
- Deeper Trouble
- Derek Harding
- Derek Snider
- Designing Virtual Worlds
- DeviousMUD
- Diablo III
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- DikuMUD
- Diku Family Tree
- Dirt
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- Diversity University
- Divination Web
- DivineRight
- Divine Blood
- Djgpp
- Dnd
- Domain
- Dominia
- Dragon's Eye Productions
- Dragon's Gate
- DragonRealms
- Dragon Ball Dark Prince Returns
- Dragon Stone
- Dragon kill points
- Dragonball: Infinity
- Dragonball Evolution
- Dragonlance
- Dream Chasers MUSH
- Dune.net
- DuneMUSH
- Dune II
- Dune MUD
- Dungeons & Dragons campaign settings
- DurisMUD
- Durmanhoth Clan
- Dworkin's Game Driver
- Dysfunction
- Eddy Carroll
- Elendor
- Emerald City
- EmlenMUD
- Empire
- EmpireMUD
- End of Time
- End of the Line
- EnsiMUD
- Envelope of experience
- Envy
- EnvyOLC
- Equilibrium
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- EverQuest
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- Everwar
- Evolution of Esos
- Ew-too
- Experience point
- FANSI
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- Fate of the Republic
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- Federation II
- Forgetown
- ForgottenMUD
- Forgotten Realms
- Fork (software development)
- Forsaken Lands
- FreeMUX.net
- Freedom principle
- FrostMUD Hosting
- Ftp.game.org
- Furcadia
- FurryMUCK
- Furry fandom
- Fuzzball MUCK
- GM
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- GP
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- Game studies
- Gank
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- GemStone IV
- Genesis
- GenesisMUDS.com
- Genocide
- George Reese
- God
- GodWars
- GodWars.net
- Gold farming
- Griefer
- GrimneMUD
- Grinding
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- HSpace
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- HavenMUSH
- Heart of the Wyld
- HellMOO
- Helliconia
- Help
- Herbert E Gilliland III
- HeroEngine
- Hero MUX
- Heroes Dreams Rebirth
- Hidden Worlds
- Hit points
- Hogwart's Legacy
- Holly Sommer
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- IC
- ILAB/OLC
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- Iberia
- Ice Online
- IfMUD
- Illarion
- Imaginary Realities
- Immersion
- Immortal
- Imperium Gothique
- Implementer
- Infinity
- Infinity (AberMUD)
- Infinity (LPMud)
- InterMUD
- Interactive fiction
- Into the Beyond
- Iron Realms Entertainment
- Isengard
- Ishar
- Island of Kesmai
- Item
- JANSI
- James Aspnes
- Jason Scott Sadofsky
- JediMUD
- Jeremy Elson
- JoinTheSaga.com
- Justme
- KallistiMUD
- Kelton Flinn
- Ken Keyes
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