Arianne is an engine to develop multiplayer online games like Stendhal
Cooperative multiplayer graphical RPG and adventure game
KildClient is a powerful MUD client with a built-in Perl interpreter
Level tracking patch for Crossfire RPG Game
A mapping tool for text-based games like text adventures, MUDs, etc.
Immersive and expansive hardcore old-school 2D ORPG (MMORPG)
This project has move to GitHub (https://github.com/TinyMUSH/)
LAIR is a Sandbox Dungeon Crawling Game
Up to date MUD client evolved from the original MudMaster
A simple telnet (and possibly SSH) server
PHP WOW Battle.net Armory Raider
CoffeeMudForAI is plaform to design AI in
Scriptable GTK based Python MUD Client
3d peer to peer chatroom where associated pairs of text gravitate
Free MMORPG Engine. Develop and host graphical browser-based games.