Solar2D Game Engine main repository (ex Corona SDK)
Open Source real-time strategy game engine for early Westwood games
The flexible game engine
Fast and lightweight JavaScript game engine built on WebGL and glTF
A development environment focused on modding
Entitas is a super fast Entity Component System (ECS) Framework
Injectable LUA scripting system, SDK generator, live property editor
Godot is a powerful cross-platform game engine
Cross-Platform C++ 2D/3D game engine
Sandbox video game with a powerful physics engine
Simple Beat Saber Mod Installer
An iOS & tvOS Frontend for Multiple Emulators
Multi Theft Auto is a game engine
Open source voxel game engine with support for survival and crafting
Real Time Strategy game engine supporting early Westwood classics
The Tiny JavaScript Game Engine That Can!
Lutris desktop client in Python
Magic Another Game Engine
fheroes2 is a recreation of Heroes of Might and Magic II game engine
A retro game engine for Python
Java/JavaFX/Kotlin Game Library (Engine)
LayaAir is an open-source 2D/3D engine
The Open Toolkit library is a fast, low-level C# wrapper for OpenGL
A Flutter based game engine
scene-oriented, flexible 3D engine (C++, Python, C#, Java)