Flotsam Float Stacking & Balancing GameSun, sea, and flotsam! It's time to collect all the flotsam and jetsam that has washed up. Players carefully stack it on the raft piece by piece, and then float the raft from island to island. They'll need a steady hand, otherwise the stacked treasures will fall overboard! Players collect seashells when they succeed in moving the raft without losing any flotsam. The person with the most seashells at the end wins.