Godot Engine – Multi-platform 2D and 3D game engine
Turbulenz is a modular 3D and 2D game framework for making HTML5 powered games for browsers, desktops and mobile devices.
A completely free, open-source, 2D game engine built on proven torque technology.
A powerful free cross-platform RTS game engine. - Report issues at https://springrts.com/mantis/
Cocos2d-x is a suite of open-source, cross-platform, game-development tools utilized by millions of developers across the globe. Its core has evolved to serve as the foundation for Cocos Creator 1.…
The Cross Platform Game Engine
Open-source, cross-platform, C++ game engine for creating 2D/3D games.
A complete 3-D game development suite written in Java.
Free (as in freedom) open source clone of the Age of Empires II engine 🚀
One framework for creating powerful cross-platform games.
Desktop/Android/HTML5/iOS Java game development framework
🐙 Superpowers — Extensible HTML5 app for real-time collaborative projects
The Atomic Game Engine is a multi-platform 2D and 3D engine with a consistent API in C++, C#, JavaScript, and TypeScript
🎮 Open-source, cross-platform 2D/3D/multiplayer game engine designed for everyone.
Game engine
Real-Time Strategy game 3D engine coded in pure java
Phaser is a fun, free and fast 2D game framework for making HTML5 games for desktop and mobile web browsers, supporting Canvas and WebGL rendering.
a fresh, modern & lightweight HTML5 game engine
Babylon.js is a powerful, beautiful, simple, and open game and rendering engine packed into a friendly JavaScript framework.