Kingdom Rush is a saad tower defense game set in Medieval times. There are empty lots set along the pre-determined path where the player can build towers. There are four towers to choose from: Mage, Archers, Barracks, and Artillery. At the beginning of each level, the player starts off with a certain amount of money in order to buy towers. As the monsters begin to emerge from one end of the path, the goal is to kill them using these towers before they reach the other end of the path. Killing monsters generates money, which can be used to upgrade towers as well. Certain towers are more effective in killing certain types of enemies. There are 18 levels in total and 48 different types of monsters that one will encounter throughout the levels. After completion of a level, Heroic Mode and Iron Challenge are unlocked. These are more challenging modes than the traditional campaign. In Campaign Mode, if all monsters are killed in time, the player is awarded 3 stars. Heroic Mode and Iron Challenge reward one star each. With these stars, the player can upgrade his or her equipment and strengthen their towers and spells (Reinforcements and Rain of Fire).
On April 25, 2012, Ironhide Game Studio released a new updated version of Kingdom Rush for Android and iOS devices that included new features and a new level.[2] Among these new features were a shop and a hero’s room. The shop provides items such as extra coins and dynamite that can be purchased through the winnings of gems in battle. The hero’s room provides a selection of heroes that aid in battle and can be obtained by passing levels. These heroes vary from defenders to archers and can be placed anywhere on the path.
Kingdom Rush has full voice acting, most of which was done by voice talent Sean Crisden.