Fight of the Castle is a whole new AR experience! Just download the image required to play. Print it out on a piece of paper(either black and white or full collor). Download the app and start playing!
Download the game: https://play.google.com/store/apps/details?id=com.levibuck.fightofthecastle
You can also follow the game on indieDB: http://www.indiedb.com/games/fight-of-the-castle-ar