"TinyMUCK or, more broadly, a MUCK, is a type of user-extendable online text-based role-playing game, designed for role playing and social interaction. Backronyms like \"Multi-User Chat/Created/Computer/Character/Carnal Kingdom\" and \"Multi-User Construction Kit\" are sometimes cited, but are not the actual origin of the term; \"muck\" is simply a play on the term MUD."@en .