RPG Maker 2000/2003 and EasyRPG games interpreter
Phaser is a free and fast 2D game framework for making HTML5 games
Free, cross-platform 2D game engine powered by Haxe and OpenFL
Cross-Platform C++ 2D/3D game engine
Cross-platform 2D game engine focused on ultimate productivity
Cross-platform 2D and 3D game engine with modular architecture
Classic 2D side-scrolling platformer game
Pymunk is a easy-to-use pythonic 2d physics library
A game engine powered by python and panda3d
A web-based IDE for HTML5 game development. Powered by Phaser
Cocos simplifies game creation and distribution with Cocos Creator
OpenSoldat is a unique 2D (side-view) multiplayer action game
A dead simple 2D game engine for Go
A completely free, open-source, 2D game engine
LayaAir is an open-source 2D/3D engine
A J2ME emulator for Android
Multi-platform Engine for Desktop, XBOX (UWP) and Mobile games
Free game engine for development of desktop, mobile, and web games
An easy to use 2D HTML5 game engine written in TypeScript
Easy to use Python library for creating 2D arcade games
The Tiny JavaScript Game Engine That Can!
Real Time Strategy game engine supporting early Westwood classics
Multi-platform 2D and 3D game engine
A high-performance, industry-standard 2D physics engine built on Box2D
3D and 2D game engine written in Rust