Every creative journey starts with Unity Hub
Open 3D Engine (O3DE) is an Apache 2.0-licensed multi-platform 3D
Cocos simplifies game creation and distribution with Cocos Creator
A game engine powered by python and panda3d
A modular Common Lisp game engine
Open source library for creative expression on the web, desktop, etc.
Embeddable unity game engine view for Flutter
Cross-platform game engine in Rust
Vivid is a modern C++ 3D engine using OpenGL4+
3D C++ Game Engine - yet another open source game engine
A 2D game engine and level editor
Clojure in Unity
IGS Labs
Web powered cross-platform 3D, WebXR game engine
The Atomic Game Engine is a multi-platform 2D and 3D engine
Open-source, cross-platform, C++ game engine for creating 2D/3D games
Turbulenz is a modular 3D and 2D game framework
Mahasona engine is an open source game engine.
Cross platform 2D/3D game engine written in C++11 & OpenGL ES 2/3
Egret is a brand new open mobile game and application engine