City Tycoon: Zombie Defense is a free Android simulation game that uniquely blends merging mechanics with strategic defense. Players are tasked with merging buildings to enhance their strength and attack capabilities, creating a fortified city to withstand waves of relentless zombie attacks. As players progress, the challenge intensifies with increasingly difficult hordes, requiring quick thinking and tactical prowess to survive.

In addition to merging buildings, players earn gold by defeating zombies, which can be used to acquire one of three random upgrade cards. These upgrades allow for customization of abilities and strategies, encouraging players to develop unique approaches to the game. With its engaging gameplay and strategic elements, City Tycoon: Zombie Defense offers a thrilling experience as players defend their city and influence the fate of humanity.