Left 4 Dead

Left 4 Dead (1 of 8)

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Left 4 Dead almost seems like a simple idea at first. A four-player co-op game where players fend off hordes of rampaging fast-zombies while running between safety zones? Genius! Reading up on the game reveals, however, that a lot of stuff is going on behind the scenes. An advanced AI director that keeps everyone guessing (hey Valve, are you trying to bring SkyNet down on us?) is a large part of why L4D works so well. Not to mention the copious amounts of balancing that likely went into each level design. 11/09/08