The Best 50 Reality Factory Alternatives

  • Gamesalad

    GameSalad Creator is an authoring tool developed by GameSalad, Inc. (formerly Gendai Games) aimed primarily at non-programmers for composing games in a drag-and-drop fashion, utilizing visual editors and a behavior-based logic system.

    Commercial Mac OS X Windows

  • Amazon Lumberyard

    Amazon Lumberyard is a free AAA game engine deeply integrated with AWS and Twitch – with full source.

    Free Windows

  • RPG Toolkit

    The RPG Toolkit is a free, open source project delivering a simple, flexible and powerful tool for the creation of role-playing games on your personal computer. The homepage also hosts games created with rpgtoolkit.

    Free Open Source Windows Linux

  • Tululoo Game Maker

    Tululoo Game Maker is a complex game creation environment that allows you to create browser based games. The program generates a Javascript code that can be played in web browsers using the next generation web standard HTML5.

    Free Mac OS X Windows Linux

  • Alice

    Alice is an innovative 3D programming environment that makes it easy to create an animation for telling a story, playing an interactive game, or a video to share on the web. Alice is a teaching tool for introductory computing.

    Free Mac OS X Windows Linux

  • Open RPG Maker

    Open RPG Maker is a free and open source clone of features from the RPG Maker series (i.e. rpgmaker200, rpgmaker2003, rpgmakerxp), as well as many other features.

    Free Open Source Mac OS X Windows Linux Mac

  • PlayN

    PlayN is a cross-platform game library that allows you to create a single Java codebase that runs in HTML5, Java, Android and Flash.

    Free Open Source Windows

  • Maratis

    Maratis is a portable, simple and visual game development tool designed for artists and developers. The Engine has been tested on Windows, Mac, Linux and iOS and can be used virtually on any platform. Maratis is Free and Open-source.

    Free Open Source Mac OS X Windows Linux iPhone iPad

  • Hero Engine

    HeroEngine is the only all-in-one development platform for making and operating online games.

    Commercial Windows

  • G3D Innovation Engine

    The G3D Innovation Engine is a commercial-grade C++ 3D engine available as Open Source (BSD License). It is used in commercial games, research papers, military...

    Free Open Source Mac OS X Windows

  • Cocos Creator

    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.

    Free Mac OS X Windows

  • Project Anarchy

    Project Anarchy is a complete end to end game engine and state-of-the-art toolset for mobile. Project Anarchy includes an entirely free license to ship your game on iOS...

    Free Windows

  • Minko

    3D. Everywhere. Minko is a technology to develop and design rich, interactive and universal 3D applications targeting computers, web browsers and mobile platforms. ...

    Free Open Source Mac OS X Windows Linux Web

  • ENIGMA

    ENIGMA Development Environment -- A very high level language, compiled into a less high level language.

    Free Open Source Mac OS X Windows Linux

  • WorldForge

    The WorldForge project is the original open-source MMORPG project, dating back to 1997. The intent lies in creating a widely used development framework and set of...

    Free Open Source Mac OS X Windows Linux Self-Hosted

  • fabric engine

    Fabric Engine is a platform for developing high-performance custom tools for visual effects, games, real-time visualization and VR/AR work.

    Free Open Source Mac OS X Windows Linux

  • Marmalade

    Marmalade is an award winning, cross-platform development tool built around the belief that developers should be free to innovate, create and craft fantastic content for...

    Free Personal Mac OS X Windows Android iPhone Windows RT

  • Stingray

    Autodesk Stingray 3D game engine and design visualization software helps developers and designers produce visually stunning experiences.

    Commercial Windows

  • Lite-C

    Lite-C is a programming language for multimedia applications and personal computer games, using a syntax subset of the C language with some elements of the C++ language....

    Free Windows