Okay all of these suggestions suck. My suggestion might be a few years old, but it was an awsome game, one of the most underappreciated games of last generation. Its a 3rd person action/adventure/puzzle solving, set in a fictional world, and has my science fiction elements. Awsome graphics, characters, and voice acting. An amazing story, this one will suck you in for sure...drumroll please....
This is of course only if you didnt allready play it!