Xash3D FWGS engine
Cross-Platform C++ 2D/3D game engine
Open source clone of the Age of Empires II engine
Fast and lightweight JavaScript game engine built on WebGL and glTF
Voxel game engine in C++ with OpenGL
Solar2D Game Engine main repository (ex Corona SDK)
High performance UI layout library in C
The game engine for everyone
3D and 2D game engine written in Rust
Open 3D Engine (O3DE) is an Apache 2.0-licensed multi-platform 3D
A modular Common Lisp game engine
Svelto ECS C# Entity Component System
A retro game engine for Python
3D Game engine with editor
Cross-platform 2D and 3D game engine with modular architecture
A game framework written with osu! in mind.
scene-oriented, flexible 3D engine (C++, Python, C#, Java)
A multi core friendly rigid body physics and collision detection lib
Stride (formerly Xenko), a free and open-source cross-platform C# game
Cocos simplifies game creation and distribution with Cocos Creator
New Godot bindings for Swift
Open source library for creative expression on the web, desktop, etc.
Godot Minimal Theme
3D Procedural Game Engine Using OpenGL
A fresh & lightweight javascript game engine