Pymunk is a easy-to-use pythonic 2d physics library
Phaser is a free and fast 2D game framework for making HTML5 games
Easy to use Python library for creating 2D arcade games
Official binding of SFML for .Net languages
Gideros Release version
Ct.js is a desktop game engine that makes learning programming fun
A Logo-like 3D environment, implemented in Nim
A simple, physics-based animation library
A Phaser CE plugin that brings sloped tile collision handling
Advanced numerical instruments: adaptive meshing, FE methods, solvers
A Deformable Medical Image Registration Toolbox
2D physics engine and simulation