Solar2D Game Engine main repository (ex Corona SDK)
Magic Another Game Engine
An easy to use 2D HTML5 game engine written in TypeScript
LayaAir is an open-source 2D/3D engine
Embeddable unity game engine view for Flutter
Portable version of the incredible Godot Game Engine
Free and Open Game Programming Language for Windows and GNU/Linux
Jetpac Clone, written in JavaScript, wrapped in a Mac App
A complete 2D Game Engine with built in drag and drop editor