The Thinkfun Gravity Maze is a single-player board game that challenges players to create a chain reaction of falling marbles using 9 building towers. With 60 challenge cards ranging from beginner to expert, players must strategize to achieve the target tower while avoiding obstacles. This award-winning game, released in 2014, includes game grid components, 3 marbles, and solutions and instructions for each challenge. Perfect for boys and girls aged 8 and up, the Gravity Maze offers hours of engaging and educational gameplay.