The Ruby 2D gem
Free, cross-platform 2D game engine powered by Haxe and OpenFL
LayaAir is an open-source 2D/3D engine
Cross-platform 2D game engine focused on ultimate productivity
utility collection for 2D game development in Java; sound-player
An easy to use 2D HTML5 game engine written in TypeScript
Classic 2D side-scrolling platformer game
A tool to select chunks from Minecraft worlds for deletion or export
Cross-platform 2D and 3D game engine with modular architecture
Desktop/Android/HTML5/iOS Java game development framework
2D JavaScript Physics Engine
A game engine powered by python and panda3d
A high-performance, industry-standard 2D physics engine built on Box2D
A dead simple 2D game engine for Go
Open source library for N64 development
Java/JavaFX/Kotlin Game Library (Engine)
A completely free, open-source, 2D game engine
Free game engine for development of desktop, mobile, and web games
Phaser is a free and fast 2D game framework for making HTML5 games
Cocos simplifies game creation and distribution with Cocos Creator
Easy to use Python library for creating 2D arcade games
Telegram Bot API for Java
A Minecraft mod designed to improve frame rates
Multi-platform Engine for Desktop, XBOX (UWP) and Mobile games