Fast and lightweight JavaScript game engine built on WebGL and glTF
A development environment focused on modding
Solar2D Game Engine main repository (ex Corona SDK)
Godot is a powerful cross-platform game engine
Cross-Platform C++ 2D/3D game engine
Injectable LUA scripting system, SDK generator, live property editor
Entitas is a super fast Entity Component System (ECS) Framework
The flexible game engine
Open Source real-time strategy game engine for early Westwood games
Simple and light-weight 3D game engine
A free & open-source 2D sprite editor, made with the Godot Engine
Simple Beat Saber Mod Installer
Diablo build for modern operating systems
Flax Engine, multi-platform 3D game engine
Desktop/Android/HTML5/iOS Java game development framework
Sandbox video game with a powerful physics engine
A J2ME emulator for Android
Multi Theft Auto is a game engine
Real Time Strategy game engine supporting early Westwood classics
Open game and rendering engine packed into a JavaScript framework
3D and 2D game engine written in Rust
Free, open source game engine online
GemRB is a portable open-source implementation of the Infinity Engine
Open source clone of the Age of Empires II engine