Alternatives to SIO2 Engine

  • Unity

    Unity is a multi-platform game development tool, designed from the start to ease creation. A fully integrated professional application, Unity offers the free Personal Edition with all features, a Plus subscription at 25$ a month and a Pro subscripti…

    Free Personal Linux Mac Windows

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  • Unreal Engine

    Unreal Engine is a professional suite of tools and technologies used for building high-quality games across a range of platforms. Unreal Engine’s rendering architecture enables developers to achieve stunning visuals and also scale elegantly to lower…

    Open Source Free Linux Mac Windows

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  • GDevelop

    GDevelop is an open-source game creation software, allowing to make games for the web (HTML5), desktop or mobile phones (iOS/Android). No programming or coding skills are required! It is easy to use and powerful enough for advanced users. Game logic…

    Open Source Free BSD Linux Mac iPad Windows Android

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  • Scratch

    Scratch is a programming language that makes it easy to create your own interactive stories, animations, games, music, and art -- and share your creations on the web. As young people create and share Scratch projects, they learn important mathematic…

    Open Source Free Linux Mac Windows Web-Based

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  • CryENGINE

    Achieve your Vision using our cutting-edge, 100% royalty-free technology! With CRYENGINE, we have a simple goal: To create the most powerful game engine in the industry, and to give creators all across the globe the tools to harness this power to cr…

    Open Source Free Personal Linux Windows

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  • Polycode

    Polycode's core is written in C++ and currently runs on Mac, Windows and Linux with iOS and Android support planned in the future. All platform-specific functionality is abstracted into a cross-platform core and implemented natively on each platform…

    Open Source Free Linux Mac Windows

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  • Torque 3D

    Torque 3D is a easy-to-use game creation platform. Architected from the ground up for maximum flexibility and performance across a wide range of hardware and built upon the Frontline award-winning Torque Game Engine Advanced, Torque 3D comes equippe…

    Open Source Free Linux Mac Windows

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  • Wick Editor

    Wick is a free Flash-like browser-based toolkit for creating small interactive things for the Internet. With Wick, you can create games, animations, and everything in between. Your creations can run on any device with a web browser - that means mobi…

    Open Source Free Self-Hosted Web-Based

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  • Stencyl

    Stencyl's drag-and-drop WYSIWYG editor pays homage to the successful MIT Scratch project. They greatly extended Scratch's simple block-snapping interface with new functionality and hundreds of ready-to-use blocks. Power users can create and share th…

    Free with limited functionality Linux Mac Windows

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  • Urho3D

    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.

    Open Source Free Raspberry Pi Linux Mac iPhone Windows Android

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  • Adventure Game Studio

    Adventure Game Studio provides the tools to make your own adventure, for free! Bring your story and artwork and slot it in, and let AGS do the rest. AGS provides everything you need from within one easy-to-use application. Create, test and debug you…

    Free Windows

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  • ENIGMA - LateralGM

    ENIGMA, the Extensible Non-Interpreted Game Maker Augmentation, is an open source cross-platform game development environment derived from that of the popular software GameMaker. Its intention is to provide you with a quality game creation tool and …

    Open Source Free Linux Mac Windows

    ENIGMA - LateralGM icon
  • Castle Game Engine

    An open-source 3D/2D game engine for ObjectPascal. We support of lot of 3D and 2D formats (VRML / X3D, Collada, Wavefront OBJ, MD3, Spine...),we're portable to a lot of platforms (Linux, Windows, Mac OS X, Android, iOS...),we provide optimized rende…

    Open Source Free BSD Linux Mac Windows

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  • Construct Classic

    Construct Classic is a free, DirectX 9 game creator for Windows, designed for 2D games. It uses an event based system for defining how the game behaves, in a visual, human-readable way - you dont need to program or script anything at all. Its intuit…

    Open Source Free Windows

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  • Cocos Creator

    Cocos2d-x is an open-source and cross platform open source free game engine for mobile game development known for its speed, stability, and ease of use. Initially built for 2D games, the engine now features 3D tools for scene editing, lighting and m…

    Free Mac Windows

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  • Playir

    Create your own mobile apps & 3D multiplayer games with our super-easy design tools for iOS, Android, Windows Phone and HTML5! Less programming, more playing. Drag and drop - Makes your own menus and levels by simply dragging in new 3D models an…

    Freemium Open Source Android Tablet Windows Phone iPad iPhone Android

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  • Platinum Arts Sandbox

    Platinum Arts Sandbox Free 3D Game Maker is an open source free game maker, free RPG Maker, free sidescroller maker, free Machinima creator, and game design tool that makes it easy for kids and adults to create video games, maps and worlds.

    Open Source Free Linux Windows

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  • FPS Creator Classic

    FPS Creator sets a new benchmark in the game creation market by providing an easy-to-use yet highly flexible editing environment. As its name implies this is a tool for creating action-packed FPS games with no programming or 3D modelling knowledge r…

    Open Source Free Windows

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  • Blitz3D

    Create 2D and 3D Games for Windows. If you've been yearning to create games but have been frustrated by the complexity of programming languages such as C++ or Java, you've come to the right place! Blitz3D provides a simple yet powerful environment f…

    Open Source Free Windows

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  • Lobster

    Lobster is a game programming language. It was developed to make it easier for people who are already programmers to prototype and make games.

    Open Source Free Linux Windows