MU*

collectively to a family of text-based multi-user virtual world servers comprising TinyMUD, MUSH, MOO, TinyMUCK

MU* refers to a family of text-based online game servers:

  • TinyMUD
  • MUSH
  • MOO
  • TinyMUCK
  • and other related types

These are also called the Tiny family. These are kinds of MUD.