An incomparable action, co-op experience filled with Valve's signature characterization skills and total modulation potential. Second only to the bigger, better, harder sequel in terms of good old fashioned zombie stomping with buddies.

An incomparable action, co-op experience filled with Valve's signature characterization skills and total modulation potential. Second only to the bigger, better, harder sequel in terms of good old fashioned zombie stomping with buddies.