Arianne is an engine to develop multiplayer online games like Stendhal
Framework for producing web-based database applications
Repository of desktops and programs for the Cygwin platform
Top-down dungeon crawler
Develop an emulated Darkfall Online Server.
To create an open source and openly developed mmorpg
SuperWikia: The Runtime/Realtime Environment for Codesmiths
Server software written in Python that implements the MUCK protocol.
Browser game engine
Python Killboard Platform for EVE Online
Atlarius is no longer under development.