Traditional MUDs implement a role-playing video game set in a fantasy world populated by fictional races and monsters, with players choosing classes in order to gain specific skills or powers.
The objective of this sort of game is to slay monsters, explore a fantasy world, complete quests, go on adventures, create a story by roleplaying, and advance the created character.
Not all MUDs are games; some are designed for educational purposes, while others are purely chat environments, and the flexible nature of many MUD servers leads to their occasional use in areas ranging from computer science research to geoinformatics to medical informatics to analytical chemistry.
Most MUDs are run as hobbies and are free to players; some may accept donations or allow players to purchase virtual items, while others charge a monthly subscription fee.
MUDs can be accessed via standard telnet clients, or specialized MUD clients which are designed to improve the user experience.
Numerous games are listed at various web portals, such as The Mud Connector.
The history of modern massively multiplayer online role-playing games (MMORPGs) like Ever Quest and Ultima Online, and related virtual world genres such as the social virtual worlds exemplified by Second Life, traces directly back to the MUD genre.
Colossal Cave Adventure, created in 1975 by Will Crowther on a DEC PDP-10 computer, was the first widely used adventure game.The game was significantly expanded in 1976 by Don Woods.is a multiplayer real-time virtual world, usually text-based.MUDs combine elements of role-playing games, hack and slash, player versus player, interactive fiction, and online chat.Players can read or view descriptions of rooms, objects, other players, non-player characters, and actions performed in the virtual world.Players typically interact with each other and the world by typing commands that resemble a natural language.