| The Cold Project: A group of programmers involved in developing in ColdC. ColdC is an object-oriented database language designed for setting up persistent online servers, such as MUDs. |
| 16K MUD Competition Results: Results of a competition to write the best possible MUD server in under 16 kilobytes. |
| Bluemud: Based on Varium project. Features documentation, research and project details. |
| CGMUD: Graphical MUD system ported from AmigaMUD. Has a graphical MUD client written in Java and an efficient server written in C. CGMUD is not derived from any other MUD and has no licensing restrictions. |
| CoolMUD Server: CoolMUD is an object-oriented, disk-based MUD server originally written by the creator of MOO. It has support for distributed processing. This version features some bug fixes in the server and improved in-database code. |
| DUMB MUD: The 'Diabolically Uncrashable MUD Builder' project aims to provide a server that is first and foremost stable and reliable. The DUMB language is a dialect of Lisp. |
| EmberMUD: Flexible open-source MUD engine, capable of supporting almost any role-playing setting. |
| FTP.GAME.ORG Mud Archive: A directory of MUD server sources and other related files available for FTP, organized by server type. |
| Kanga.nu MUD Server FTP Archive: Repository of MUD servers containing many old servers of historical interest, as well as new ones. |
| KoalaMUD: Koala is a highly-distributed IP6/IP4 MUD server. It allows for very large game worlds to be distributed between multiple machines in a manner transparent to players. |
| Momoko: An open source, modular, extensible platform for building multi-user environment. Momoko transparantly distributes objects over multiple servers and supports several scripting languages. Written in Java. |
| Muq: Ambitious distributed MUD server with a long list of features. One of the main aims of the project is to construct non-proprietary online communities based on free software. |
| New MUD Code-bases: Catalog of new and original MUD servers for different platforms and programming languages. Includes short descriptions and links to the project web pages and their authors. |
| SMUD - SOAP Driven Multi User Dungeon: A multi-user dungeon loosely based on the "Dungeons & Dragons" world. The most important aspect of this server is that it accepts client connections via SOAP/XML envelopes. |
| The AIME Project: An open-source MUD engine, designed to provide as much flexibility as possible to the designer creating the online world. |
| The Grendel Project: A MUD server for Win32 written in Delphi 5. Features include multi-threaded design, copy-over procedure and IPv6 support. |
| The MUD32 Project: Notes on a Windows based Mud server. |
| Tinymush 3: Descendant of TinyMUD, supports multi-user communications in a text-based virtual world format. |
| Valhalla Mud Engine: MUD engine by the original writers of the DIKU MUD server. Unlike DIKU, VME is available under a business license that allows commercial exploitation. |
| [rec.games.mud]: FAQ #4/4: Servers at a glance: Detailed information about mud server types. |
Classical
