“TinyMUCK or, more broadly, a MUCK, is a type of user-extendible online text-based role playing game, designed for role playing and social interaction. The backronym “Multi-User Created (or Character, or Carnal) Kingdom” is sometimes cited, but is not the actual origin of the term; “muck” is simply a play on the word “mud” in TinyMUD.” See also: MUD, MOO.
