Where does this set's design come from?

It's based on a fan design that gathered enough support on the LEGO Ideas platform to go into official production.

How many pieces does the set have, and are there minifigures?

It has 4,090 pieces and includes no minifigures.

What colours define the model?

White, black, reddish brown and tan create the nostalgic look of a historic steamship.

LEGO Ideas and CUUSOO

River Steamboat

A river steamboat styled after a bygone era: this Ideas set grew out of a fan design and turns 4,090 pieces into a detailed ship model with no minifigures included.

Set number: 21356
Year: 2025
Pieces: 4,090
Minifigures: 0
Theme: LEGO Ideas and CUUSOO
Different parts: 640

What can I build with it?

View the official building instructions at LEGO® ↗

Parts list 640

As BrickLink list (XML)

Import on BrickLink: Wanted → Upload, upload the file (or paste its content), pick a Wanted List and add the parts.

Spare parts (87)

These extra parts come with the set in case one gets lost.

Description

Fan-designed, officially produced

Sets in the LEGO Ideas range originate from fan designs that gathered enough support on the Ideas platform to go into official production. The River Steamboat picks up the classic shape of a paddle steamer, once a common sight on major rivers, translating its deck, funnels and paddlewheel into a model built from 4,090 pieces. That community origin makes the set appealing to collectors who specifically seek out Ideas sets and value the story behind each design, rather than a purely in-house creation.

A display piece without figures

With no minifigures included, the focus sits entirely on the ship's architecture: multiple decks, delicate railings and the distinctive silhouette of a historic steamship. That makes the model a classic display set, meant to stand permanently on a shelf once finished rather than serve as a backdrop for changing play scenes, and it works well as a centrepiece on a desk or bookshelf next to other historic vehicle models.

White, black and warm brown tones

The palette of white, black, reddish brown and tan creates the nostalgic look of a steamship from the 19th or early 20th century: bright deck surfaces meet dark technical details and warm wood tones. With 640 different elements, the set offers enough variety to render details such as windows, railings and superstructures convincingly, giving the finished ship a lively, varied silhouette quite unlike a smooth, modern vessel.

The parts list for rebuilding

This page lists all 640 elements with their colours. For a model of this complexity, the list helps keep track of progress, rebuild individual decks on their own, or replace missing pieces after a long stretch of building, without having to search back through the whole model. It's also a useful reference against other watercraft from the Ideas range.

A demanding build for ship enthusiasts

At 4,090 pieces, the River Steamboat is a project for several building sessions, with each deck and superstructure adding up to a cohesive whole. The set suits builders who appreciate technical detail, such as the paddlewheel and railings, and who bring patience for delicate elements. As a pure display piece with no play value, the steamboat stands permanently once finished rather than serving changing play scenes. Anyone who already owns other historic vehicles from the Ideas range will find this a fitting addition to a growing collection of ship and vehicle models.

FAQ

Where does this set's design come from?: It's based on a fan design that gathered enough support on the LEGO Ideas platform to go into official production.
How many pieces does the set have, and are there minifigures?: It has 4,090 pieces and includes no minifigures.
What colours define the model?: White, black, reddish brown and tan create the nostalgic look of a historic steamship.