The most powerful game development platform is now available to everyone. Full engine source code. All features. No royalties. No obligations. No license fee.



Moddio is described as 'Multiplayer-First Game Engine. It has a built-in server-authoritative netcode, including snapshot interpolation and client-side reconciliation. It can support 50+ concurrent players or 300+ moving entities hosted on a $5/month VM' and is a game development tool in the development category. There are more than 50 alternatives to Moddio for a variety of platforms, including Windows, Linux, Mac, Android and Web-based apps. The best Moddio alternative is Godot Engine, which is both free and Open Source. Other great apps like Moddio are Unity, Unreal Engine, GDevelop and Candlestick.
The most powerful game development platform is now available to everyone. Full engine source code. All features. No royalties. No obligations. No license fee.



A refreshingly simple data-driven game engine built in Rust. Free and Open Source Forever!


Armory is an open-source 3D game engine with full Blender integration, turning it into a complete game development tool. The result is a unified workflow from start to finish, making you work faster. No more jumping between different applications.




Stride (formerly Xenko) is an open-source C# game engine designed for the future of gaming. It comes with a full toolchain and is especially well suited to create realistic games but allows you much more!.




Fibbo is a free and open-source web-based game engine that allows you to create interactive experiences using JavaScript, right in your browser.

ct.js is a 2D game editor (desktop app) based on web technologies. It aims to be an extensible yet simple game-making tool, accessible for both newbies and experienced game developers.






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.




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!



cocos2d-x is a cross platform open source free 2D game engine for mobile gamedev, that is fast and stable, easy to learn and use.




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.




Verge3D is a powerful and intuitive toolkit that allows Blender, 3ds Max or Maya users to create immersive web-based experiences. Verge3D can be used to build interactive animations, product configurators, engaging presentations of any kind, online stores, explainers, e-learning...



