Build-up is a board game for 2-6 people, each playing the role of a property developer, needing to complete 3 phases of property development - design, construction and marketing. The winner is the first player to occupy the central Build up square with a ten story building - a stack of ten tiles. The players must also have a Tenant and a Topping Out card and the building must not have any mortgaged stories. Play is on a game board with dice to move around and select various cards and/or pay/receive money etc. You also get to pick up your essential develop cards like planning permission. You get to travel in/out the board as well as clockwise around each layer (there are three).