In this 1-4 player tile-laying game, players are tasked with building an amazingly extravagant castle for King Ludwig II of Bavaria...one room at a time. You see, the King loves castles, having built Neuschwanstein (the castle that inspired the Disney theme park castles) and others, but now he's commissioned you to build the biggest, bestest castle ever — subject, of course, to his ever-changing whims. Each player acts as a building contractor who is adding rooms to the castle they're building while also selling their services to other players.