A game framework written with osu! in mind.
Game engine supporting many 3D/2D formats and graphic effects
PyCAPGE - Python Classic Adventure Point and Click Game Engine
Vivid3D is an open-source 3D engine with powerful 2D UI.
Spring is a free RTS engine developed for Windows, Linux and Mac OS X.
Cinema Enters Game Console
Modern 3D engine and IDE written using C# and C++.
Reactive extensions for Unity
Build Cross-platform Applications
Vivid Engine 2 is an open source 3D Engine coded using C# and C++.
Asphyre is a cross-platform framework for Delphi and FreePascal.
3D .NET engine for Windows, Linux, Mac
Flexible and easy-to-use 2d game engine
Multimedia asset management and manipulator for Étoilé
Cross-platform C framework very compact libraries and tools.
Educational framework for OpenGLES, OpenCL and OpenAL
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!
An open source skateboard games engine written in C# and .NET.
Pear3DEngine is a modern and modular 3D development framework