Open Source MMORPG Framework
Arianne is an engine to develop multiplayer online games like Stendhal
An open-source Phantasy Star Online server for *nix
A multiplatform medieval 3D MMORPG
Makes running a PSO server on Linux easier
Free MMORPG
An OpenGL client-server game
Find the best oldschool server with the lowest ping [OSRS Live Ping]
GameWhizzards is a user created, Open Source 3D MMORPG
Collection of Tools for Perfect World MMORPG
Dark Age of Camelot server emulator
World of Warcraft character converter, supporting multiple emulations
starrydb is game server engine
Python classes to work with Blizzards API
Immersive and expansive hardcore old-school 2D ORPG (MMORPG)
Massively multiplayer online game server and client framework
Anarchy Online Emulator
Blender port of Ryzom art data
LUR is a Rebuild of Lego Universe created in Uneral 4.
Open source server for Other Life/Eternal Lands client
My LEGO Universe Server