We've been playing a bit of Left4Dead recently and now that we've finally managed to tear ourselves away from it, we think it's only fair to share with you the details of this four-player Co-Op zombie shooter from Valve and Turtle Rock Studios.

We got a chance to sit down with Chet Faliszek recently, writer for Valve's upcoming co-op zombie game Left4Dead. We quizzed him on all sorts of topics from how the game works to what he'll do when the zombies attack - find out his answers here!