Your mission in this mix of defense, RPG and fun match-3 puzzle swapping game is to defend the King's castles by switching building, upgrading heroes, and strategically placing wall defenders on the castle walls. Use YOUR MOUSE to swap tiles in the city to heal heroes, create power-ups and recruit reinforcements. If you manage to swap 4 tiles of orange, light blue or pink you will get wall reinforcements. Swap red, green and purple tiles to heal heroes or create power-up tiles. Good luck!