Open 3D Engine (O3DE) is an Apache 2.0-licensed multi-platform 3D
Solar2D Game Engine main repository (ex Corona SDK)
Godot is a powerful cross-platform game engine
Multi Theft Auto is a game engine
The Ren'Py Visual Novel Engine
A complete 3-D game development suite written in Java
A game engine powered by python and panda3d
fheroes2 is a recreation of Heroes of Might and Magic II game engine
The game engine for everyone
Real Time Strategy game engine supporting early Westwood classics
Voxel game-creation platform with easy modding and game creation
Open source voxel game engine with support for survival and crafting
Xash3D FWGS engine
A retro game engine for Python
Powerful, mature open-source cross-platform game engine for Python
Open-source engine for Heroes of Might and Magic III
Cocos simplifies game creation and distribution with Cocos Creator
A refreshingly simple data-driven game engine built in Rust
Descent 3 by Outrage Entertainment
Free game engine for development of desktop, mobile, and web games
The flexible game engine
scene-oriented, flexible 3D engine (C++, Python, C#, Java)
Fast and lightweight JavaScript game engine built on WebGL and glTF
The Open Toolkit library is a fast, low-level C# wrapper for OpenGL
LayaAir is an open-source 2D/3D engine