Logic Board Games for Kids and Adults – Mars Expedition SOL43 + Expansion Set – Montessori STEM Educational Toys Gift - Logic Game with Solo Mode for 1-2 Players for Ages 8 and up is up for auction in Toys & Games. The current bid is $10.25, 65% below the $29.60 MSRP, in New/Like New condition. This auction has ended — similar items appear in live auctions regularly.