Zombie Panic! SourceZombie Panic! TeamReleased 3 Oct 2008·App 17500Steam user reviewsVery Positive84.9%· 7.9K reviewsRecent Mostly Positive · 76%SteamPeaks Rating70.9 PositiveRecent 30 days 52.7How it worksPlaying now21+3 vs. yesterday2.8%of peakAll-time peak748Jul 2012