EnvyMUD
From Wikipedia, the free encyclopedia
EnvyMUD is a MUD codebase written by Michael Chastain, Michael Quan, Mitchell Tse, David Love, and Guilherme Arnold which was created in 1994 as a derivate of the Merc codebase which itself was based on DikuMUD.
EnvyMUD had two major release versions: the original release (1.0) in 1994, and version 2.0 in 1995. The latest release version is 2.2 that was finalized in 1997.