Survive the onslaught of fifteen enemy types utilizing four contrivances, each with their own weapon compatibilities. You salvage scrap parts by destroying enemies, which are used to upgrade your contrivances, projectiles, and bunker.
Aliens have landed and want to eat the farmers' brains! You must defend the barn. Strategically arrange the crop circles to make them follow a path of your choice. Then place your military assets and blast them back to space!
Evil Aliens attacked our planet and you should stop them. You are the only hope for all Earth citizens. Your brave soldiers and powerful tanks waiting for your commands to smash those evildoers.
Shoot the incoming enemies to protect your base. Collect weapons and turrets that automatically fire on the incoming missiles. Push the turrets around the battlefield to take advantage of their range and abilities.