LEGO 21356 River Steamboat

Released 2025 · 4,090 pieces · LEGO Ideas and CUUSOO

LEGO River Steamboat (21356) was released in 2025 as part of the LEGO Ideas and CUUSOO theme, with 4,090 pieces. That makes it the 1st largest of the 103 LEGO Ideas and CUUSOO sets in the catalog. It was one of 14 LEGO Ideas and CUUSOO sets released that year (see them all). Released in 2025. LEGO sets typically stay on shelves for about two years, so this one is likely still in production.

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• Estimated value: $319 (modelled from piece count, era, and age, not live market data)

Availability: Currently available (probably) (inferred from its release year, not an official retirement date)

Full details, the price breakdown, and the minifigures included are below. Add it to your collection to track what it's worth.

• The largest of all 103 LEGO Ideas and CUUSOO sets
• 8¢ per piece, cheaper per piece than most LEGO Ideas and CUUSOO sets

More from 2025

Set data from the Rebrickable database, refreshed daily. Catalog data as of 2026-09-01. Values are this site's estimates, see how they're calculated.

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