Gamer Limit: "Zombies are hot. One glance at any message board specializing in nerd sub-culture and it's easy to see that Zombies are the Prada of the geek world. Suffice it to say, ninjas are out. Equally as popular in today's gaming climate is cooperative play, more specifically, the online variety. Left 4 Dead, from Half-Life publisher Valve, serves to combine cooperative play and zombies into one fantastic yet frantic experience that's completely unique at the same time."