The RML project is working on a way of designing rulesets for games, virtual worlds and other simulations. It aims to enable design at a much higher level than is currently available and make it accessible to the more artistically inclined designer.
EasyeMud provides a server, graphical client and a set of tools for creating and administering graphical online multi user dungeon (MUD) type games. Game content and logic are written in scripts similar to the Basic programminglanguage.
The Euphoric Ataxia project is an attempt to create a fast, reliable, secure and stable MUD (multi-user dungeon) server and engine entirely in the Java programminglanguage in order to ensure portability.