Yeap its the full game I can confirm.
I got pass the childhood area and onto the caravan with no issues. In the chapters when the first chapter was free it would tell you to buy the next section. It was a test MS had and see how many people would buy these "chapters" and ultimately be more expensive then the game. However, recently MS made the full game available for purchase at $20 but for some reason the old version was still up in the process with no chapter locks (so basically the full game) and probably a thousand (or less) in the last few hours were able to grab it for free - I being one of them. Thanks MS!
It's just that simple.







