Valve has updated it's store with loads of Left 4 Dead 2 goodies of the snuggle kind, and as you can see from the header image, the first in line for the zombie cuties is the Boomer. As much as we ...

But how did Left 4 Dead become the 2.5 million-plus seller that it is? How were the Boomer and Smoker born? And what is a Screamer? "Throughout the design process we treated the entire survivor ...