Easy to use Python library for creating 2D arcade games
Phaser is a free and fast 2D game framework for making HTML5 games
Lua Virtual Reality engine
Godot game template and component-based framework
Creative cellular automata browser game
An open source library for GPU-accelerated robot learning
Javascript Matrix and Vector library for High Performance WebGL apps
Ct.js is a desktop game engine that makes learning programming fun
Cross platform Virtual Reality authoring and playback
A Logo-like 3D environment, implemented in Nim
A Phaser CE plugin that brings sloped tile collision handling
Super-fast 3D framework for Web Applications
3D .NET engine for Windows, Linux, Mac
3D simulation library
2D physics engine and simulation
The Tensor Contraction Engine
A cross-platform OpenGL based lightweight scenegraph library
Box2d Flash Alchemy Port + World Construction Kit