Threshold is a roleplaying enforced MUD (text-based online role-playing game) that has been in operation since June 1996. Its focus is on providing a place for roleplaying in addition to traditional MMO/MUD style gameplay. It has as many as 70-100 players online at any given time.Owned and operated by Frogdice, Inc. in Lexington, Kentucky, Threshold was originally created by Michael A. "Aristotle" Hartman.