One man's castle is another man's cardboard box. or maybe his RV, tree house, igloo or skyscraper. In this fast-paced game of bidding and bluffing to get the highest-ranking properties, it isn't how much you pay for the properties; it's how much you sell them for. All players try to purchase the most valuable properties for the least amount of money and them "flip" them (turn around and sell those properties) for the highest-valued Currency Cards. Whoever has earned the most money at the end of the game wins.