Merge Zombie Siege is an ultra-casual game where players control zombies attacking human strongholds. The objective is to break through the defenses and successfully complete each level.

During the game, players wait for the battle to begin, and the screen automatically spawns normal zombies. Players can speed up the process by tapping the screen.

The gameplay involves stacking and combining card-type zombies to create new ones. Players can randomly acquire new zombie cards with money and drag and drop them into the battlefield. Combining two identical zombies can create a higher quality one, with increased attributes (white-blue-green-purple-orange).

By combining various quality zombies, players can increase their idle/s income.

Merge Zombie Siege is an exciting and straightforward game that challenges players to think creatively and strategically. It is perfect for casual gamers who want to pass the time with engaging gameplay.