Xbox One and Series X/S backward compatibility games list

The Xbox Series X and Series S are both fully backward compatible with nigh-on every game that runs on Xbox One, and that means they can equally play Xbox 360 and original Xbox games too.

Source : https://www.pocket-lint.com/games/news/xbox/135875-how-xbox-one-backward-compatibility-works-the-xbox-360-and-xbox-games-list-and-more/