Open 3D Engine (O3DE) is an Apache 2.0-licensed multi-platform 3D engine that enables developers and content creators to build AAA games, cinema-quality 3D worlds, and high-fidelity simulations without any fees or commercial obligations.


Cocos2d-x is described as 'Cross platform open source free 2D game engine for mobile gamedev, that is fast and stable, easy to learn and use' and is a game development tool in the development category. There are more than 50 alternatives to Cocos2d-x for a variety of platforms, including Windows, Linux, Mac, Android and iPhone apps. The best Cocos2d-x alternative is Godot Engine, which is both free and Open Source. Other great apps like Cocos2d-x are Unity, Unreal Engine, GDevelop and Wick Editor.
Open 3D Engine (O3DE) is an Apache 2.0-licensed multi-platform 3D engine that enables developers and content creators to build AAA games, cinema-quality 3D worlds, and high-fidelity simulations without any fees or commercial obligations.


One framework for creating powerful cross-platform games. The spiritual successor to XNA with 1000's of titles shipped across desktop, mobile, and console platforms. MonoGame is a fully managed .NET open source game framework without any black boxes.

RPG Paper Maker is a free game maker engine including a 3D universe with many 2D sprites and some simplified 3D objects. Pretty close to the RPG Maker series, RPG Paper Maker finally give a way to create RPGs in a totally 3D universe as easy as it is in 2D!



Urho3D is a lightweight, cross-platform rendering and game engine implemented in C++ and released under the MIT license. Greatly inspired by OGRE and Horde3D.




A complete JavaScript framework for building 3D games with HTML5, WebGL and Web Audio.




Cocos Creator is a complete package of game development tools and workflow, including a game engine (based on Cocos2d-x), resource management, scene editing, game preview, debug and publish one project to multiple platforms.


Suite for building 2D top-down role-playing games with detailed map, tile, and sprite editors, traditional turn-based mechanics, dialog and encounter tools, custom scripting, asset support, and publishing options, suitable for both beginners and advanced users.




Flax Engine is claimed the most agile game engine. It's open source, cross-platform and it lets you write scripts in C++ and C# seamlessly. Also focused on lightweight development. A true game changer.








Stencyl isn't your average game creation software; it's a gorgeous, intuitive toolset that accelerates your workflow and then gets out of the way. We take care of the essentials, so you can focus on what's important - making your game yours.



Cerberus X is a cross-platform, easy to learn object-oriented programming language focusing on game development with a powerful set of APIs that make it easy to draw lightning fast graphics on all supported platforms To achieve this, Cerberus X translate our code to the target...



Solar2D is a Lua based cross-platform framework with focus on ease of iterations and usage. ideal for rapidly creating apps and games for mobile devices and desktop systems.

