Apps similar to Reality Factory include Godot Engine, which is free and open source. Other options are Unity, Unreal Engine, GDevelop and Wick Editor. Game Development Tools like Reality Factory are a crowded field, with more than 50 alternatives for Windows, Linux, Mac, Android and iPhone.
batari Basic (bB) is a BASIC-like language for creating Atari 2600 games. It creates a binary file that can be run on an Atari 2600 emulator or the binary file may be used to make a cartridge that will operate on a real Atari 2600.
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 Graphics Development Engine for Business and Industry. Build high-quality 3D solutions and deploy to any platform.
Spain
EU
Wintermute Engine Development Kit is a set of tools for creating and running graphical “point&click” adventure games, both traditional 2D ones and modern 2.5D games (3D characters on 2D backgrounds).
GermanyEU
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.
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.
United States
PlayN is a cross-platform game library that allows you to create a single Java codebase that runs in HTML5, Java, Android and Flash.
United States
Your project’s smart 3D digital twin as a Service. SmartShape (formerly Minko) is a technology to develop and design rich, interactive and universal 3D applications targeting computers, web browsers and mobile platforms.
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, Android and Tizen platforms.
IrelandEU
BlitzMax is a versatile desktop development environment for developers of all shapes and sizes.
New Zealand
Mokoi Gaming is a Game Creation Tool. Mokoi Games are platform neutral, if a compatible player is available for OS or Device, you can play games with no troubles. We're also have projects to help with creating and sharing platform neutral games.
Australia
Maratis is a portable, simple and visual game development tool designed for artists and developers.
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