A transformitive work of Merc/Diku MUD called NiMUD released under the Artistic License/GPL.

NiM5 is an advanced multi-user gaming server.

A demonstration version can be visited @ http://nimud.org

This server was written by Herb Gilliland; the project began in 1993 around the time Merc 2.0c came out (we started with 2.2 and then upgrade) See r.g.m.d: http://groups.google.com/group/rec.games.mud.diku/search?group=rec.games.mud.diku&q=The+isles+herb&qt_g=Search+this+group

NiM5 was the first to release an open-source multi-user gaming software compatible with Merc/Diku mud that included such advanced features as OLC. OLC, or on-line creation, was originally known as "online building" and was part of the undistributed "Hidden Worlds Merc MUD" until mid-1993, when Chris Woodward and Herb Gilliland wrote and released a new version called OLC that performed the same function as an add-on snippet for Merc 2.2; NiMUD 5 is the successor project to The Isles, which spun off the popular "The Isles OLC" software that became the basis for Ivan's OLC, EnvyOLC, ROMolc and ILAB OLC (the first port of the software to Merc 2.2). Parts of this software are used in over 400 active online games.

NiM5 contains 12800+ hours of work and you are benefiting, please keep our credits in your respective documentation.

Various distributions of NiMUD have been used to create derivative projects. Those projects are: Void of Reality, FateMUD, Lyonesse 1.0 (in Italy), Everwar (eWar 2.0), EmlenMUD and Midpoint Void (1,2,3); the most successful NiMUD-derived game was Rites of Passage MUD, which had 90+ players online at any given time.

As of ROM 2.4, several versions of the separate package "ROM MUD" ship with our OLC installed. Additionally, our OLC is a part of 1stMUD and QuickMUD. We ask that anyone using OLC with their software include our names in your "Credits" command, and during the login "Based on NiMUD by Locke and Surreal"

Prior versions of this software were distributed under a different license.