The thoughtless use of insecticides led to the mutation of insects and huge individuals were born. In addition, they became much smarter and hid their mutation without showing themselves. In Swarm Siege, their plans are revealed when an army of mutant insects begins to attack your castle. There is only one turret on the fortress tower, which you will control, fighting off the attacks of huge beetles, spiders, ants and other insects. After every five waves of attacks, bosses will appear on the battlefield. These are gigantic and strong creatures that are difficult to destroy. Collect boosters and bonuses that appear on the field and aim your turret at monsters in Swarm Siege.