DF modular backend
Java Gamepad API for multiple platforms
Library for creating turn-based games with simultaneous moves.
Modular Gaming Open Source Persistent Browser Based Game Framework
TurboSphere is an easy to learn and powerful JS based game engine.
A world editor for HGE game engine written in python and uses OpenGL.
Kinect based controller.
Pygrid is an open-source and cross-platform pygame/python 2D engine.
A cross-platform game framework based on OpenGL and GObject.
A multiplatform game engine for interactive fiction experiences
A retro style video game engine for RPGs and adventure games.
2D Game Engine, based on OpenGL and focused on Isometric Games
Scriptable frontend for media applications.
Open source network game service
Create your own animated characters for games with ease!
A truly extensible cross-platform game engine
Pear3DEngine is a modern and modular 3D development framework
An extensible development framework for roleplay games.
C-Lesh is a game programming language for 2D games.
DiaT is a Textadventure