Open Source MMORPG Framework
Arianne is an engine to develop multiplayer online games like Stendhal
Game engine allows you to create own MMORPG
MMOG Framework. Starting place to build a game.
Modular Gaming Open Source Persistent Browser Based Game Framework
Recruit-A-Friend Support for HonorBuddy
Open Source Virtual World and MMOG Development Platform
Create your own online real-time browser-based MMO in your website
Atlarius is no longer under development.
c# game server framework