Solar2D Game Engine main repository (ex Corona SDK)
Open Source real-time strategy game engine for early Westwood games
Entitas is a super fast Entity Component System (ECS) Framework
Fast and lightweight JavaScript game engine built on WebGL and glTF
The flexible game engine
A development environment focused on modding
Open source reimplementation of GTA San Andreas game engine in Unity
Godot is a powerful cross-platform game engine
Open source voxel game engine with support for survival and crafting
Multi Theft Auto is a game engine
Open source clone of the Age of Empires II engine
RPG Maker 2000/2003 and EasyRPG games interpreter
fheroes2 is a recreation of Heroes of Might and Magic II game engine
Open game and rendering engine packed into a JavaScript framework
The game engine for everyone
Real Time Strategy game engine supporting early Westwood classics
RetroArch is a frontend for emulators, game engines and media players.
Cross-Platform C++ 2D/3D game engine
A Flutter based game engine
The Open Toolkit library is a fast, low-level C# wrapper for OpenGL
Powerful, mature open-source cross-platform game engine for Python
Blockbench - A low poly 3D model editor
An easy to use 2D HTML5 game engine written in TypeScript
Java/JavaFX/Kotlin Game Library (Engine)
A cross-platform, open-source, pure C game engine for mobile game