Playing as the Sheriff, you are in charge of defending the town of UnDeadwood by hiring cowboys for your posse and positioning them on the rooftops and in the street of the small western town. Hire, upgrade, and position your cowboys wisely to defend against wave after wave of zombie hordes hell-bent on destroying UnDeadwood. Using strong 3-D graphics and innovative gameplay, Cowboys vs Zombies, redefines the tower defense genre. Source: The Game Website.