LEGO Ideas and CUUSOO history: 2011 to 2026
Written by Bik Brik Editor with AI assistance and automated fact checks. Editorial policy
LEGO Ideas and CUUSOO begins in 2011 and runs through 2026 in the supplied data. The 2025 marker is 21355-1 The Evolution of STEM, followed by 2026 sets including Love Birds, Floating Sea Otters, Tintin Moon Rocket, The X-Files and E.T. the Extra-Terrestrial.
Key facts
- Theme
- LEGO Ideas
Quick answer
LEGO Ideas and CUUSOO covers a timeline from 2011 to 2026 in the supplied data. In the recent stretch, 21355-1 The Evolution of STEM anchors 2025, while 2026 expands the theme with animals, pop culture subjects and display-focused builds.
2025 milestone: The Evolution of STEM
21355-1 The Evolution of STEM is a LEGO Ideas and CUUSOO set released on March 1, 2025. It has 879 pieces, with a retirement date of December 31, 2026.
On the retail side, The Brick Fan reported that Target discounted LEGO Ideas The Evolution of STEM to $45.99, a 43% reduction and a $34 saving.
LEGO Ideas and CUUSOO sets in 2026
The current 2026 entries include:
- 21365-1 Love Birds: released January 1, 2026, with 750 pieces; retirement date December 31, 2028.
- 21366-1 Floating Sea Otters: released March 1, 2026, with 1234 pieces; retirement date December 31, 2028.
- 21376-1 Orange Cat: released March 1, 2026, with 1755 pieces; retirement date December 31, 2028.
- 21367-1 Tintin Moon Rocket: released April 1, 2026, with 1283 pieces; retirement date December 31, 2028.
- 21368-1 Peanuts: Snoopy's Doghouse: released June 1, 2026, with 964 pieces; retirement date December 31, 2028.
- 21369-1 The X-Files: released August 1, 2026, with 1478 pieces.
- 21370-1 E.T. the Extra-Terrestrial: released August 1, 2026, with 1226 pieces.
- 21372-1 La Catrina: released August 1, 2026, with 1212 pieces.
- 40896-1 The X-Files: Scully's Lab: released August 1, 2026, with 221 pieces.
Why 2026 stands out
The 2026 lineup shows LEGO Ideas and CUUSOO moving across several lanes: animal builds through Love Birds, Floating Sea Otters and Orange Cat; pop culture with Tintin Moon Rocket, Peanuts: Snoopy's Doghouse, The X-Files and E.T. the Extra-Terrestrial; and a culturally themed display model with La Catrina.
Across the 2011 to 2026 timeline, 21355-1 The Evolution of STEM sits as the bridge between the 2025 entry and the broader LEGO Ideas and CUUSOO group that follows in 2026.
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