Xbox One owners officially have four more older Xbox 360 games they can play on their current-gen console. Microsoft has expanded its Xbox One Backward Compatibility to include LEGO Batman, Alan Wake's American Nightmare, Sam and Max Beyond Time and Space, and Trials HD.
That means people who already own either the digital or disc versions of those Xbox 360 games can play them on the Xbox One as well for no additional cost.
A few days ago, some Xbox One owners were also able to download and play Red Dead Redemption and some other games, but Microsoft later said those games are still in testing and their public release was an error. The games were later blocked from being accessed on the Xbox One.