A series of Tower Defense games. Features four tower types barracks, mage, archer and artillery. Each type has different advantages and disadvantages. You can purchase improvements for each tower during the game. The final upgrade allows a choice of two tower types these final tower types also offer a number of improvements. Depending on how you perform on the stage you can earn stars which can be used to purchase upgrades for the tower types and in addition to the magic spells you have access to. The Kingdom Rush games also feature hero units which can be moved around the battlefield.