Amazon · Aug 5, 2026
$25 $50
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Amazon offers the Thames & Kosmos Hydraulic Boxing Bots STEM Experiment Kit for $24.93, its best-ever price. It's also an $11 low. Shipping is free for Prime members. Buy Now at Amazon
Features
- Upper and lower body move independently for dodging, jabbing, and punching
- Includes a scoreboard for head-to-head robot battles
Amazon · Aug 3, 2026
$27 $55
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Amazon offers the Thames & Kosmos Bionic Robotic Arm STEM Experiment Kit for $27.43, its best-ever price. Most merchants charge $55. Shipping is free. Buy Now at Amazon
Features
- Builds into a working robotic arm from nearly 300 pieces
- No motors or batteries required, uses joysticks and nylon cables to move
- Buttons open, close, and rotate the arm and claw
Amazon · Aug 26, 2026
$27 $55
free shipping w/ Prime
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Kids curious about coding get a hands-on intro to programming through building a robotic chameleon that responds to light and touch, and at $27.43, that's 50% off the $54.95 list price. Buy Now at Amazon
Features
- Screen-free coding via physical action cards
- Three interactive play modes: Coding, Wild, and Pet
- Articulated joints for realistic movement and gestures
- Color and infrared sensors for environmental interaction
- Award-winning educational STEM assembly kit
Amazon · Aug 23, 2026
$36 $40
free shipping
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This building set suits kids or adults interested in mechanical engineering, since it lets you assemble a V8 engine model with moving pistons to see how the parts actually work together, and it's currently $4 off the list price. Buy Now at Amazon
Features
- Assemble motorized working race car model
- Observe visible moving V8 engine mechanics
- Features functional four-speed manual transmission
- Includes realistic steering and shock-absorbing suspension
- Follow step-by-step illustrated engineering guide
Amazon · Sep 1, 2026
$13 $15
free shipping w/ Prime
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This board game suits fans of cooperative card games who want a communication-limited challenge, since players work together using only card plays (no talking) to complete space missions, and it's currently $2 off the $15 list price at Amazon. Buy Now at Amazon
Features
- Cooperative gameplay
- Unique trick-taking mechanics
- Scalable difficulty for all skill levels
Amazon · 1 wk ago
$11 $23
free shipping w/ Prime
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Good pick for family game night or classroom use, mixing vocabulary building with quick dice-rolling rounds that keep kids engaged without much setup; it's currently $12.29 (54%) off the $22.95 list price. Buy Now at Amazon
Features
- Race against a 2-minute timer to spell words
- Multiply scores by matching target ice cube dice
- Wildcard die substitutes any letter for strategic play
- Adjustable rules and modes for all skill levels
- Includes multiple bonus game modes for variety
Amazon · 1 wk ago
$13 $20
free shipping w/ Prime
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Update: The price has dropped to $12.52 since this was originally published.
Puzzle fans who like narrative-driven mystery games will get the most out of this hotel-set adventure, and at $12.53 it's $7.46 off the $20 list price. Buy Now at Amazon
Features
- Solve mysteries by exploring and interacting with guests
- Combine items and find clues to progress gameplay
- Experience non-linear branching narratives with multiple endings
- Enjoy five hours of unique, replayable story content
- Immersive adventure gameplay modeled after classic PC games