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Retiring Soon

LEGO The Evolution of STEM (21355)

LEGO The Evolution of STEM (21355)
Set number
21355
Theme
Ideas
Pieces
879
Retail price
$79.99
Age
18+
Owner rating
4.5★
Availability
Will ship in 60 days
On retiring list since
September 15, 2026
Check price on Amazon Buy on LEGO.com

On LEGO’s Last Chance to Buy list. LEGO has flagged this set for retirement — once it leaves the list, production ends and the aftermarket is the only way to get one.

LEGO The Evolution of STEM is a 879-piece Ideas set for ages 18+, currently $79.99 at retail (LEGO.com shows “Will ship in 60 days”). At $79.99 for 879 pieces it works out to 9.1¢ per piece. It’s the 4th-priciest of the 5 Ideas sets currently on LEGO’s retiring list. We first spotted it on the Last Chance to Buy list on September 15, 2026. LEGO.com owners rate it 4.5★ out of 5.

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