the almighty Wiki wrote:In computer gaming, a MUD (multi-user dungeon, dimension, or sometimes domain) is a multi-player computer role-playing game typically running on a bulletin board system or Internet server. Players assume the role of a character, and see textual descriptions of rooms, objects, other characters, and computer-controlled creatures or non-player characters (NPCs) in a virtual world. They may interact with each other and the surroundings by typing commands that resemble a natural language, usually English.
Traditional MUDs implement a fantasy world populated by elves, goblins, and other mythical beings with players being knights, sorcerers, and the like. The object of the game is to slay monsters, explore a rich world and complete quests. Other MUDs have a science fiction setting. Still others, especially those which are based on MOOs, are used in distance education or to allow for virtual conferences. MUDs have also attracted the interest of academic scholars from many fields, including communications, sociology, law, and synthetic economies.
Most MUDs are run as hobbies and are free to players; some may accept donations or allow players to "purchase" in-game items.
In short the games are basically Everquest without graphics and completely free to play.
Zork was a 1970s game where you played an adventurer on a quest for treasure (with the grue waiting to eat you at every turn). A real classic and laid the groundwork for basically every RPG out there today. It was a single player game as opposed to the MUDs which will sometimes have upwards of 200 players on at once.