Royal Revolt! is a game of the emerging' "Reverse Tower Defense" genre.
In the game you are a young prince who has to win his kingdom back from his evil aunts and uncles who usurped it after his father's death. With simple and intuitive touch controls, the player directs the Prince through the beautifully designed levels and helps him conquer 30 castles.
It's available for Android devices -- and it's free!