Open source HTML5 game framework that offers WebGL and Canvas
Open source library for creative expression on the web, desktop, etc.
One framework for creating powerful cross-platform games
JavaScript framework to build game engines, games, emulators and apps
3D .NET engine for Windows, Linux, Mac
Cross platform 2D/3D game engine written in C++11 & OpenGL ES 2/3
Cross-platform 2D game engine