Open source library for creative expression on the web, desktop, etc.
Game engine supporting many 3D/2D formats and graphic effects
X3D Prototypes for the SMUOS Component
Asphyre is a cross-platform framework for Delphi and FreePascal.
Gorgon Game Engine (GGE) is a C++ game engine that handles many tasks.
Multimedia asset management and manipulator for Étoilé
A cross-platform game framework based on OpenGL and GObject.
2D Game Engine, based on OpenGL and focused on Isometric Games
Extremely simple joystick rumble / vibration library
Create your own animated characters for games with ease!
Game development toolkit
An open source skateboard games engine written in C# and .NET.
Pear3DEngine is a modern and modular 3D development framework
An extensible development framework for roleplay games.
QuadTree JS is a library for game developers
Powerful html5 & javascript library for creating applications & games.
A cross-platform OpenGL based lightweight scenegraph library