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Explore STEM & Robotics Tools Sets in Kinetic & Mechanical

Catalog Scope 9 Sets
Price Spread $37 – $755
Largest Build 5,100 pcs
Brands: LEGO (9)

Editor's Choice

LEGO Starter Kit 2000414
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Budget Pick
LEGO Starter Kit 2000414
$36.99
234 pcs · 15.8¢/pc
LEGO Window Exploration Bag 2000409
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Largest Set
LEGO Window Exploration Bag 2000409
5,100 pcs
100 Minifigures
Lego Arctic Animals Science Kit 45203
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Best Value
Lego Arctic Animals Science Kit 45203
$0.088 / pc
1,134 pcs for $99.99
LEGO Mars Mission Science Kit 45202
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Collector's Pick
LEGO Mars Mission Science Kit 45202
4 Minifigures
4 Exclusive Figures
An arctic explorer on a snowmobile observes a polar bear breaking off an ice floe. Pieces of ice fly around dynamically, showcasing play features.
Lego
9+
wild animals stem robotics tools 2026

Lego Arctic Animals Science Kit 45203

Piece Data
Pieces: 1134
Exclusive: 1
Rare: 6
Minifigure Data
Minifigs: 4
Exclusive: 4
Fits: Kallax, Detolf, Billy, Console
$99.99
($0.09 (9¢) / piece)
A LEGO Mars Rover in dark blue, white, and teal, launching red brick sub-assemblies with a visible action arrow and a grey boulder in motion.
Lego
9+
stem robotics tools 2026

LEGO Mars Mission Science Kit 45202

Piece Data
Pieces: 933
Exclusive: 3
Rare: 41
Minifigure Data
Minifigs: 4
Exclusive: 4
Fits: Billy, Console
$99.99
($0.11 (11¢) / piece)
Moon Mission Science Kit 45200 image 1
Lego
8+
stem robotics tools spacecraft 2026

LEGO Moon Mission Science Kit 45200

Piece Data
Pieces: 519
Exclusive: 1
Rare: 9
Minifigure Data
Minifigs: 2
Exclusive: 2
Fits: Billy, Console
$49.99
($0.10 (10¢) / piece)
Full view of LEGO Ideas 21355 The Evolution of STEM set with minifigures Isaac Newton, George Washington Carver, and Marie Curie.
Lego
18+
stem robotics tools 2025

LEGO The Evolution of STEM 21355

Piece Data
Pieces: 879
Exclusive: 29
Rare: 17
Minifigure Data
Minifigs: 3
Exclusive: 3
Fits: Kallax, Detolf, Billy, Console
$79.99
($0.09 (9¢) / piece)