Super fast HTML 5 2D rendering engine that uses webGL with canvas fallback
2D Vector Graphics Engine Powered by a JIT Compiler
Phaser is a fun, free and fast 2D game framework for making HTML5 games for desktop and mobile web browsers, supporting Canvas and WebGL rendering.
Openframeworks Addon for creating photoshop like 2d artboard
Meta is free and fast open source HTML5 game engine for making cross platform games, supports Canvas and WebGL rendering and Dopple for native compilation.
A simple-as-possible 2D physics rigid-body physics engine for Elm.
OpenSCAD2D is a software for creating solid 2D CAD objects.
Программа, считывающяя данные с датчика "есть ли тут что-нибудь", строящая 2D карту
CrossFailure is a 2D game framework built with OpenFL and Haxe that delivers cross platform games.