How many pieces does the LEGO Underwater Adventure (21598-1) have?

The LEGO Underwater Adventure set (21598-1) contains 310 pieces. It was released in 2026 as part of the LEGO Minecraft theme.

How can I find missing parts for LEGO set 21598-1?

On BrickMissing you can check which parts from the LEGO Underwater Adventure (21598-1) you already own. Add your LEGO collection and we'll show exactly which of the 310 pieces you're missing and which you already have.

Can I build the LEGO Underwater Adventure with parts I already have?

Use BrickMissing's free parts checker to find out. Add LEGO sets you own to your collection and we'll cross-reference all 310 parts to show your buildability percentage and which specific pieces you still need.

What theme is the LEGO Underwater Adventure from?

The LEGO Underwater Adventure (21598-1) belongs to the LEGO Minecraft theme. You can browse all Minecraft sets on BrickMissing to find more sets from this theme.

Underwater Adventure

21598-1 Minecraft 2026 310 parts 12.2% catalog rarity Intermediate

Embark on a subterranean Minecraft journey with the LEGO Minecraft Underwater Adventure (21598-1) set, featuring 310 pieces for deep-sea exploration. This 2026 release transports players to the ocean depths, where Steve the deep-sea diver, armed with his sword and axe, navigates his boat through the waters. Accompanying Steve are a Dolphin and Tropical Fish, while a Drowned wields a trident, posing a threat amongst the coral reefs. The set recreates an Ocean Monument and an Ocean Ruin, concealing a buried treasure chest with gold and an emerald. Guardians and an Elder Guardian protect these aquatic domains, capable of firing projectile elements to thwart Steve's progress, adding action to the build. Steve's binoculars and map aid in charting the course through this block-built realm.

View at LEGO.com € 29,99→ lego.com

Parts Inventory

🧱 310 parts

Showing the first 12 rows of the parts list (310 pieces in total). The full list loads automatically.

Color	Qty	LEGO price each
Black	1×	€0,10 View at LEGO → View
Black	1×	Check price → View
Black	1×	€0,10 View at LEGO → View
Black	4×	€0,11 View at LEGO → View
Black	2×	Check price → View
Black	2×	Check price → View
Tan	1×	€0,16 View at LEGO → View
Tan	1×	€0,13 View at LEGO → View
Tan	4×	€0,22 View at LEGO → View
Tan	10×	€0,07 View at LEGO → View
Tan	1×	€0,07 View at LEGO → View
Tan	2×	€0,46 View at LEGO → View

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Catalog rarity

How common are the parts in Underwater Adventure?

12.2%High rarity

more commonless common

15 of 123 recorded part+color combinations appear in 3 or fewer sets in our catalog. This does not measure replacement availability or price.

Theme average

4.4%

All sets

6.7%

Least common in our catalog

FLAT TILE 2X2, NO. 590 · Tan · only this set in our catalogFIGURE HEAD, NO. 108 · Light Lime · only this set in our catalogWeapon Sword Blocky · Medium Azur · only this set in our catalog

How we calculate this →