A Mass of Dead is an action-packed game designed for Mac users, set in a post-apocalyptic world overrun by zombies. Players take on the role of Sara, a special agent tasked with finding a vaccine after receiving a distress signal from a laboratory. The game features a variety of zombies, including special types like zombie dogs, adding unique challenges to the gameplay. Players must strategize their approach to survive and thrive in this dangerous environment.

The gameplay revolves around acquiring and upgrading weapons and equipment to effectively combat the zombie hordes. Players can purchase standard weapons from shops or discover unique items that are not available for sale. Power boosters are also available to enhance combat capabilities, making players formidable against the undead. With its engaging mechanics and intense action, A Mass of Dead offers a thrilling experience for fans of the action genre.