Still Alive - Portal (Honorable mention to Want You Gone in Portal 2 + Cara Bella)
Still Alive - Mirror's Edge
Triage at Dawn - Half Life 2 OST (There are many more I love from HL2, especially from the episodes..too many to list)
The Dragonborn comes- Skyrim
Castle of Glass - Medal Of Honour: War fighter's Theme (I'm not sure if LP created the song JUST for the game, though, but it was marketed heavily with it)
Icarus - Deus Ex: Human Revolution and the credits theme