ENIGMA is a free development environment geared towards game development.
* Free and Open Source GPLv3
* Cross platform and compiled using GCC/MinGW
* Easy to learn, and Game Maker compatible!
* It's a great way to get started with C++.

For more information visit http://www.enigma-dev.org
You can also find us on Twitter and Facebook and Indie DB.
https://twitter.com/EnigmaGamedev
https://www.facebook.com/pages/ENIGMA-Development-Environment/427268784026069?ref=stream
http://www.indiedb.com/engines/enigma-development-environment

Since this is GPL, does that mean any games created with this must also be GPL?

Our engine currently runs on Windows, Mac and Linux. We are still working on our OpenGL 3 compliant graphics system but once it is completed we can port it to GLES and there is potential for Android and other ports.

We are also currently working on our licensing, something that allows us to maintain control of the engine, while also allowing users to sell their games. Some have suggested the Mozilla Public License, you can partake in the discussion on our forums.

Most information is available on our wiki:
http://enigma-dev.org/docs/Wiki/Main_Page

You can find documentation of the engine, the language spec, functions, etc.
http://enigma-dev.org/docs/Wiki/Function_Documentation
http://enigma-dev.org/docs/Wiki/ENIGMA:Specification
http://enigma-dev.org/docs/Wiki/ENIGMA:Developing
http://enigma-dev.org/docs/Wiki/LateralGM