Tap an empty circle to build a tower, tap a placed tower again to upgrade. You can also use keys 1-8. Your progress saves automatically โ Resume will be there!
Leave mid-game and your progress stays saved on this device โ when you come back, you'll get a Resume or New Game button.
Welcome back! ๐ฟ
Your last game is saved on this device. Resume it, or start a new game?