TX Library is a tiny graphics library for Win32 written in C++.
Open source library for creative expression on the web, desktop, etc.
Game engine supporting many 3D/2D formats and graphic effects
A 2D game engine and level editor
Reactive extensions for Unity
X3D Prototypes for the SMUOS Component
Asphyre is a cross-platform framework for Delphi and FreePascal.
Gaming library
.NET - VISUAL BASIC NVIDIA +ATI PHYSX SLIMDX DIRECTX 9 -ENGINE/WRAPPER
Gorgon Game Engine (GGE) is a C++ game engine that handles many tasks.
Multimedia asset management and manipulator for Étoilé
3D Game engine
A cross-platform game framework based on OpenGL and GObject.
2D Game Engine, based on OpenGL and focused on Isometric Games
Create your own animated characters for games with ease!
3D Web UI, Embed Web and Flash in 3D Games, based on WebKit
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.