Microsoft has announced they’ve added a bevy of Valve-developed titles to their ongoing list of enhanced titles for Xbox One X.
The backwards compatible titles Left 4 Dead, Left 4 Dead 2, The Orange Box, and Portal are now supported for performance enhancements on Xbox One X.
This means the games will run at a higher resolution and 9 times the original pixel count. These games join the 17 previously released enhanced Xbox 360 titles like Red Dead Redemption and Skate 3 for a total of 21 Xbox One X Enhanced Xbox 360 games.