Character animation system for games and simulations.
Smart phone automation tool. Support iOS, Android, WebApp and game
The Atomic Game Engine is a multi-platform 2D and 3D engine
Open-source, cross-platform, C++ game engine for creating 2D/3D games
3D .NET engine for Windows, Linux, Mac
Cocos2d for iOS and OS X, built using Objective-C
Cross platform 2D/3D game engine written in C++11 & OpenGL ES 2/3
Egret is a brand new open mobile game and application engine
Not your usual Architectural Modeler
A cross-platform OpenGL based lightweight scenegraph library
The Objective-C Interactive Simulation Abstraction Layer