Godot is a powerful cross-platform game engine
Fast and lightweight JavaScript game engine built on WebGL and glTF
Open game and rendering engine packed into a JavaScript framework
Solar2D Game Engine main repository (ex Corona SDK)
Real Time Strategy game engine supporting early Westwood classics
A complete 3-D game development suite written in Java
The HTML5 Creation Engine
A modular Common Lisp game engine
Multi-platform Engine for Desktop, XBOX (UWP) and Mobile games
Flax Engine, multi-platform 3D game engine
Stride (formerly Xenko), a free and open-source cross-platform C# game
A game engine powered by python and panda3d
3D game engine/framework in C, with Luajit and Python bindings now
A game framework written with osu! in mind.
Cross-platform 2D and 3D game engine with modular architecture
Free, cross-platform 2D game engine powered by Haxe and OpenFL
The game engine for everyone
Recreation of the classic Grand Theft Auto III game executable
Powerful, mature open-source cross-platform game engine for Python
Free game engine for development of desktop, mobile, and web games
A refreshingly simple data-driven game engine built in Rust
Ct.js is a desktop game engine that makes learning programming fun
Open source library for creative expression on the web, desktop, etc.
Multi-platform 2D and 3D game engine
A retro game engine for Python