Open source library for N64 development
Open source library for creative expression on the web, desktop, etc.
SDL based generic 2D game engine
TX Library is a tiny graphics library for Win32 written in C++.
Multidocument automation by templates - for sphinx, mkdocs, epydoc ...
Open-source, cross-platform, C++ game engine for creating 2D/3D games
3D .NET engine for Windows, Linux, Mac
Gorgon Game Engine (GGE) is a C++ game engine that handles many tasks.
Multimedia asset management and manipulator for Étoilé
XNA based game engine completely written in c#
a game library to develop audio games
C++ Framework for slot machine games
Pear3DEngine is a modern and modular 3D development framework
A cross-platform OpenGL based lightweight scenegraph library
The Lambda-Engine is a cross platform game engine.