Open source HTML5 game framework that offers WebGL and Canvas
Desktop/Android/HTML5/iOS Java game development framework
Open source library for creative expression on the web, desktop, etc.
Fast and lightweight JavaScript game engine built on WebGL and glTF
JavaScript framework to build game engines, games, emulators and apps
2D Game Engine
The imaginary eight-bit machine
Build Cross-platform Applications
Simple data driven web based gamebook engine using javascript.
NinYawg Adventure
3D Web UI, Embed Web and Flash in 3D Games, based on WebKit
C-Lesh is a game programming language for 2D games.
Investigo - DX9 Performance and Debugging Toolkit
A cross-platform OpenGL based lightweight scenegraph library