War Z is now available on Steam at the discounted price of $13.49; that's a savings of 10% off. The War Z is a Survival Horror MMO that immerses players in a zombie-infested, post-apcalyptic world in which a viral outbreak has decimated the human population leaving in its wake, a nightmare of epic proportion. ● A Huge Persistent World: The War Z is an open world game. Our first map ... more.