MechDefender combines elements of top-down shooting and tower defense in a thrilling action game for Mac. Players take on the role of a mech pilot tasked with defending their home against waves of zombies from outer space. With a variety of powerful weapons at their disposal, players can strategically eliminate hordes of undead while employing clever tactics to secure their base.

The gameplay encourages players to build intricate labyrinths and upgrade their skills to enhance their defensive capabilities. Additionally, players can purchase new weapons to aid in their mission of annihilating the invading forces. MechDefender offers an engaging mix of action and strategy, making it a compelling choice for fans of both genres.