Four Classic Valve Games Now Xbox One X-Enhanced

Four Xbox 360 era Valve games are now enhanced on Xbox One X.
Microsoft announced Half-Life 2: The Orange Box, Portal: Still Alive, Left 4 Dead, and Left 4 Dead 2 have all received Xbox One X enhancements, including higher resolution.
Technically, it's more than four games, since The Orange Box includes Half-Life 2, both expansion episodes for HL2, Team Fortress 2, and Portal. Portal: Still Alive released after The Orange Box and contained additional content.
The new additions bring the tot