Four survivors, hundreds of zombies, one escape vehicle: the concept is simple, but staying alive is not. Make things easier on yourself and discover some of the game's secrets with these handy tips.
Jukeboxes play random tracks, including (very rarely) Portal hit "Still Alive" and (more often) "Re: Your Brains," a zombie track by the same composer, Jonathan Coulton. If you stay and listen, the chorus always triggers a zombie horde. Prep yourself by listening to it on his site: jonathancoulton.com/store/downloads.