Desktop/Android/HTML5/iOS Java game development framework
Open source HTML5 game framework that offers WebGL and Canvas
Open game and rendering engine packed into a JavaScript framework
One framework for creating powerful cross-platform games
Gideros Release version
PyCAPGE - Python Classic Adventure Point and Click Game Engine
Game engine supporting many 3D/2D formats and graphic effects
A 2D game engine and level editor
Reactive extensions for Unity
Open-source, cross-platform, C++ game engine for creating 2D/3D games
.NET - VISUAL BASIC NVIDIA +ATI PHYSX SLIMDX DIRECTX 9 -ENGINE/WRAPPER
evolution for vegastrike SpaceSim/Combat/Trade game
Cross platform 2D/3D game engine written in C++11 & OpenGL ES 2/3
c# lua bind with unity3d project for game development
Educational framework for OpenGLES, OpenCL and OpenAL
Game development toolkit
3D Web UI, Embed Web and Flash in 3D Games, based on WebKit
A cross-platform OpenGL based lightweight scenegraph library
Make games with Lego-like building blocks