The Ruby 2D gem
State-of-the-art 2D and 3D Face Analysis Project
An open-source full-featured 2D animation creation software
Classic 2D side-scrolling platformer game
Free, cross-platform 2D game engine powered by Haxe and OpenFL
Cross-platform 2D game engine focused on ultimate productivity
Cross-Platform C++ 2D/3D game engine
Pencil2D is an easy, intuitive tool to make 2D hand-drawn animations
Agent Skill for generating 2D sprite sheets and map, transparent PNG
Pymunk is a easy-to-use pythonic 2d physics library
2D JavaScript Physics Engine
Phaser is a free and fast 2D game framework for making HTML5 games
A standalone, large scale, open project for 2D/3D image processing
An easy to use 2D HTML5 game engine written in TypeScript
Console-based GLSL Sandbox for 2D/3D shaders shaders
A game engine powered by python and panda3d
Interactive data visualizations and plotting in Julia
Open source library for N64 development
2D GPU-accelerated framework for ActionScript developers
Juggling Lab juggling animator
Easy to use Python library for creating 2D arcade games
A layer built on top of the Insight Toolkit (ITK)
A Vulkan and OpenGL overlay for monitoring FPS, temperatures, CPU/GPU
Simple drawings using vector graphics; Cairo "for tourists!"