Open Source MMORPG Framework
Gideros Release version
Arianne is an engine to develop multiplayer online games like Stendhal
The first-ever RPG for WordPress
3D .NET engine for Windows, Linux, Mac
Mahasona engine is an open source game engine.
c# lua bind with unity3d project for game development
Free strategy browsergame engine.
Modular Gaming Open Source Persistent Browser Based Game Framework
Library for creating turn-based games with simultaneous moves.
Open source network game service
Rock cms, un script php que piensa por si mismo.
Moteur de jeux de rôles descripifs (RP) en PHP
Cross-platform 2D game engine
Zap Engine
Atlarius is no longer under development.