The ThinkFun Gravity Maze Falling Marble Logic Game is a single-player board game that challenges players to use strategic thinking to solve 60 puzzles. With 9 building towers and a target tower, players must use the game grid and 3 marbles to create a gravity-powered path for the marbles to fall through. This award-winning game, released in 2014, is suitable for ages 8 and up and appeals to both boys and girls who enjoy problem-solving and strategy games. The game comes complete with challenge cards ranging from beginner to expert, along with solutions and instructions for guidance.

This is pre-owned, but still in good shape. it has all the challenge cards, all the pieces, and 1 marble. It's a lot of fun solving all the puzzles.