At its E3 press conference, Microsoft announced Xbox 360 backwards compatibility for the Xbox One. Players can place their original Xbox 360 disc in their Xbox One console, and download the game to their hard drive. Cross-generation multiplayer between the Xbox One and the older Xbox 360 will be possible. Games will play identically on the Xbox One as they did on the older console, though it hasn’t been immediately understood whether there will be differences in graphical fidelity or framerate.
As with the backwards-compatibility feature of the Xbox 360, not all titles will initially be available to play, but will be added over time after the launch of the feature.