Arianne is an engine to develop multiplayer online games like Stendhal
Tintin++ scirpts for MUD (mmorpg)
A mapping tool for text-based games like text adventures, MUDs, etc.
GGMud is a cross platform modern MUD client.
This project has move to GitHub (https://github.com/TinyMUSH/)
PHP WOW Battle.net Armory Raider
CoffeeMudForAI is plaform to design AI in
3d peer to peer chatroom where associated pairs of text gravitate
A lame multi-user dungeon engine.