Desktop/Android/HTML5/iOS Java game development framework
Open source HTML5 game framework that offers WebGL and Canvas
One framework for creating powerful cross-platform games
Netcode that provides networking capabilities to GameObject workflows
A simple and easy-to-use library to enjoy videogames programming
Free, cross-platform 2D game engine powered by Haxe and OpenFL
Kotlin extensions for the libGDX game framework
Multi-platform 2D and 3D game engine
scene-oriented, flexible 3D engine (C++, Python, C#, Java)
Open source library for creative expression on the web, desktop, etc.
the java game and entertainment runtime
A completely free, open-source, 2D game engine
Old style soccer game with many exciting features
Open source reimplementation of GTA San Andreas game engine in Unity
Cinema Enters Game Console
Build Cross-platform Applications
Asphyre is a cross-platform framework for Delphi and FreePascal.
Massively multiplayer online game server and client framework
Open-source, cross-platform, C++ game engine for creating 2D/3D games
Modern AS3 Game Engine
3D .NET engine for Windows, Linux, Mac
Educational framework for OpenGLES, OpenCL and OpenAL
Hungry Hero is an open source Flash game built on Starling Framework.
PixelLight is a cross-platform application framework