MUME, Multi-Users in Middle-earth, is a game, one of the early offsprings of DikuMUD and one of the oldest DikuMUDs still running. In a September 2000 interview Raph Koster, the lead designer of Ultima Online and the chief creative officer of Everquest II, lists MUME as one of the games that influenced him as a game designer by "doing such interesting things with player conflict".