The entire DUSK soundtrack is incredible (I mean, it's done by Andrew Hulshult, so what did you expect?) and it was tough to pick a favorite song, but I decided on Handgun Harmony. It really captures the eerie tone of the game while still being an awesome theme to fight hordes of guys to. It's definitely one of my favorites off the OST.

Though, I wanna give an honorable mention to Ashes to Ashes, Dusk to Dusk and Erebus Reaction, because they are also awesome songs and it was tough to choose just one.

Also, DUSK is hands down my favorite indie game of all time, so I'm gonna plug the steam page while I'm here. If you like FPS games at all, there is a 666% chance you will appreciate DUSK.