Atomic Game Engine

The Atomic Game Engine features a cross-platform editor with deployment to Windows, OSX, Linux, WebGL, Android, and iOS.

Free Open Source Mac OS X Windows Linux

Blitz3D

Create 2D and 3D Games for Windows.

Free Open Source Windows

MonoGame

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 .

Free Open Source Mac OS X Windows Linux Web GitHub

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.

Free Open Source Windows Linux

Wintermute Engine Development Kit

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).

Free Open Source Windows

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

Phaser

Phaser is a fun, free and fast 2D game framework for making HTML5 games for desktop and mobile web browsers, supporting Canvas and WebGL rendering.

Free Open Source Mac OS X Windows Linux

Duality

Duality is a modular 2D game engine / editor combo, written entirely in C# and built on top of an OpenGL backend.

Free Open Source 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

QICI Engine

QICI Engine is a free and opensource JavaScript library, based on free and opensource game engine Phaser, with a web-based comprehensive suite of HTML5 game making editor.

Free Open Source Mac OS X Windows

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

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

Arcade Game Studio

Making games as the '80s arcade games. Includes Run'n'Gun, vertical & horizontal Shooters or Platform, makes games as Pac-Man, Commando, 1942, Ghosts...

Free Windows