The Thinkfun Roller Coaster Challenge is 50 percent logic game, 50 Percent roller coaster building set, and 100 Percentage awesome and educational. It is a single player with four levels of play from easy to super hard. It includes one game board, 36 posts, 39 tracks, one roller coaster car, and forty mind challenging cards with solutions. Your Child can enjoy endless hours of free form coaster building. Recommended for ages 6 to adult