I created a few characters using the system, read through most of the book, and it's fairly loose with what you can accomplish. It seemed more limited by what a GM might allow than game rules, since characters have access to things like nanofactories, the ability to switch bodies, etc. Most of the in-game limitations are resource constraints, the lack of stats for large weapons platforms, and the pure strength of existentially threatening baddies. I get the impression you're supposed to die a lot while playing...

And yes, the content is Creative Commons licensed to allow the entire rulebook to be legally downloaded.