Select digital games for Xbox 360 and the original Xbox work on Xbox One. The ones you own will appear in the Ready to Install section of your games & apps. Select the game to install it.
For disc-based games, insert the disc. If it's on the list, the game will download. You'll need to keep the disc in the drive to play.
Games for the original Xbox also work on Xbox One, but compatibility is one way: you can't play Xbox One games on Xbox 360 or the original Xbox.
