Backwards compatibility was introduced as part of the Xbox One’s latest operating system update. In addition to playing games digitally–either previously owned or newly purchased–Xbox 360 discs can also be inserted into the console and played, provided it is in the list of supported games.
Currently there are just over 100 Xbox 360 games supported by the Xbox One backwards compatibility feature. The list includes a mixture of titles from Microsoft’s own library, along with some from third-party publishers including Electronic Arts, Ubisoft, Sega, Bethesda, and Disney.