December Games with (XBL)gold.
For Xbox One:
For Xbox 360:
I think since November, Xbox 360 Games with gold have been compatible with the Xbox One. If you only have an Xbox 360, and not an Xbox One, you can Add the Xbox One games to your account anyway, to play if/when you get an Xbox One.
The games are permanently added to your account; you do not need to have XBL Gold to play games you added to your account from Games with gold.
why the remastered thief got so many bad reviews?