ThinkFun Gravity Maze Falling Marble Logic Game
✓ Product data checked October 15, 2026
Gravity Maze is ThinkFun's falling-marble logic game, listed on Amazon US as a challenging STEM toy for kids. It is rated 4.6 across more than 37,800 reviews and costs about $19.97. It is a logic game rather than a character toy, so it suits a kid who likes working things out.
Why it makes a good gift
Best for : A curious kid who likes puzzles and figuring things out, bought by a parent, grandparent or relative who wants something other than a character toy
Best occasion : Christmas stocking or a birthday, especially for a kid who already has plenty of licensed toys
Why it works : It is a logic game sold as a STEM toy, which gives a gift-giver an option that feels like a toy but rewards thinking, without tying the child to a franchise they may outgrow. A 4.6 rating across about 37,900 reviews at roughly $20 is an unusually large review base for a logic game at this price, which lowers the risk of a miss when you cannot ask the child.
Avoid if : The child prefers character toys or action play: a logic game rewards patience, and the age range is cut off in our data, so check the listing for the recommended age.
For
Kids, Teen Boys, Teen Girls
Budget
$$ — Affordable
Frequently asked questions
Is it a STEM toy?
Yes, the Amazon US title calls it a challenging STEM toy for kids and a falling marble logic game.
How much does it cost?
About $19.97 at the time of import, so it fits a stocking or a birthday-party budget.
What age is it for?
The age range is cut off in our data, so check the listing before buying.
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