How many pieces are in the Underwater Robot?

Underwater Robot contains 207 pieces.

What age is the Underwater Robot recommended for?

This set is recommended for ages 7+.

When was the Underwater Robot released?

Underwater Robot was released in 2019.

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🏛 Creator 3-in-1

Set #31090

Underwater Robot

The Underwater Robot is a charming and versatile Creator 3-in-1 set.

Before you buy

Who it's for: Ages 7+ · Beginner build Young LEGO fans and builders looking for a quick and enjoyable experience
Build: 207 pieces · about 2 hours Build time is an estimate.
Price: $19.99 list price · 9.7¢ per piece
Availability: Retired at LEGO

★★★★☆ 4.1 community rating from 144 ratings

Fans appreciate the set's posability and the creative alternate builds, making it a fun and versatile set. Some find the main model a bit simple, but overall it's considered a good value for a Creator 3-in-1 set.

$19.99

Best Price

$17.99

You Save

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📝 Our Take

AI-assisted editorial summary, grounded in our LEGO database and public community discussions. How we use AI

The Underwater Robot is a charming and versatile Creator 3-in-1 set. It perfectly captures the spirit of exploration with its posable joints, cool color scheme, and the alternate builds offering even more creative possibilities.

This set is perfect for younger LEGO enthusiasts and fans of robotics. The build is straightforward and fun, offering a great introduction to more complex LEGO models, plus it's a good display piece for a desk or shelf.

Skip this if you're looking for a highly challenging or intricate build. For a more complex underwater adventure, consider larger LEGO City Deep Sea Exploration sets.

✨ New

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How does the Underwater Robot compare to other LEGO robot sets? What are some creative ways to display the Underwater Robot? Is this set a good value for the price given its piece count? How durable is the Underwater Robot for play?

🧱 Building Experience

AI-assisted build estimate, grounded in our LEGO database and public community discussions. How we use AI

🧩

207

Pieces

⏱

Estimated Build Time

📊

Beginner

Difficulty

👤

Ages

Build Highlights:

Easy-to-follow instructions for all three models
Fun use of ball joints for posing the robot
Clever integration of the cockpit and accessories
Compact size makes it great for display

📈 Investment Analysis

AI-assisted investment analysis, grounded in our LEGO database and public community discussions. How we use AI

↑ Trending up since release

Investment Grade

⏳ Retired

The Underwater Robot, being a retired Creator 3-in-1 set, has decent investment potential. Its relatively low piece count and original MSRP make it accessible, while the rising price trend indicates increasing demand. Creator 3-in-1 sets often hold value, especially those with unique designs and play features. However, its smaller size and piece count compared to larger, more complex sets may limit its long-term appreciation.

Not Financial Advice: Content is for educational purposes only. Past performance doesn't guarantee future results. Full disclaimer

⚖ Compare Similar Sets

Deep Sea Creatures

Creator 3-in-1 • 230 pcs

$14.99

Fish Tank

Creator 3-in-1 • 352 pcs

Compared to other Creator 3-in-1 sets in a similar price range, the Underwater Robot offers a unique theme and a fun build experience. While some may prefer sets with more pieces or minifigures, this set stands out for its posability and creative alternate builds. Consider other Creator 3-in-1 sets like the 31088-1 Deep Sea Creatures for more underwater themed builds.

📦 Parts Inventory

Official piece count: 207
Parts cataloged in this inventory: 78 unique parts, 207 pieces

Missing a piece? Check this set piece by piece, with look-alike colors flagged and element IDs for replacements.

Bar Holder with Clip

Part #: 11090 1× White

Technic Axle Pin ...

Part #: 11214 2× Dark Bluish Gray

Plate Special 1 x...

Part #: 11458 8× Black

Plate Special 1 x...

Part #: 11476 5× White

Brick Curved 2 x ...

Part #: 11477 4× Dark Blue

Plate Special 1 x...

Part #: 14417 1× Dark Bluish Gray

Plate Special 1 x...

Part #: 14418 2× Light Bluish Gray

Tile 2 x 2 Corner

Part #: 14719 4× Light Bluish Gray

Tile Round 2 x 2 ...

Part #: 14769 4× Dark Bluish Gray

Brick Curved 2 x ...

Part #: 15068 2× Yellow

Technic Axle 5 wi...

Part #: 15462 1× Reddish Brown

Tile Special Roun...

Part #: 15535 3× Light Bluish Gray

Plate Round Half ...

Part #: 18646 2× Light Bluish Gray

Plate Special 1 x...

Part #: 18649 1× White

Plate Special 1 x...

Part #: 18677 2× Light Bluish Gray

Tile Special 1 x ...

Part #: 2412b 2× Light Bluish Gray

Brick Curved Inve...

Part #: 24201 2× Yellow

Tile Special 1 x ...

Part #: 2432 1× Red

Plate Special 1 x...

Part #: 26047 2× Black

Technic Axle Towball

Part #: 2736 1× Light Bluish Gray

Technic Pin with ...

Part #: 2780 2× Black

Brick 1 x 2

Part #: 3004 3× Yellow

Plant, Sea Grass

Part #: 30093 1× Dark Green

Brick 1 x 4

Part #: 3010 1× White

Plate 2 x 4

Part #: 3020 2× Yellow

Plate 2 x 3

Part #: 3021 6× Yellow

Plate 2 x 2

Part #: 3022 4× Yellow

Plate 2 x 2

Part #: 3022 1× Dark Blue

Plate 2 x 2

Part #: 3022 1× White

Plate 1 x 2

Part #: 3023 5× Light Bluish Gray

Brick Round 2 x 2...

Part #: 30361c 2× Red

Brick Round 2 x 2...

Part #: 30367c 2× Red

Brick Sloped 45° ...

Part #: 3037 2× Yellow

Bar 4L (Lightsabe...

Part #: 30374 2× White

Hinge Cylinder 1 ...

Part #: 30552 2× Dark Bluish Gray

Tile 2 x 2 with G...

Part #: 3068b 1× Light Bluish Gray

Tile 1 x 2 with G...

Part #: 3069b 1× Dark Blue

Tile 1 x 2 with G...

Part #: 3069bpr0301 1× Light Bluish Gray

Plate Special 3 x...

Part #: 3176 4× Yellow

Part #: 35646 2× Pearl Gold

Brick Sloped Inve...

Part #: 3660 4× Yellow

Bracket 1 x 1 - 1...

Part #: 36840 2× Dark Bluish Gray

Bracket 1 x 1 - 1...

Part #: 36841 4× Medium Blue

Technic Plate 2 x...

Part #: 3709 4× White

Plate 1 x 4

Part #: 3710 4× Dark Bluish Gray

Plate 1 x 4

Part #: 3710 4× Yellow

Brick Round 2 x 2...

Part #: 3941 3× Dark Bluish Gray

Part #: 43093 2× Blue

Flag 2 x 2 Trapez...

Part #: 44676 4× Dark Blue

Dish 2 x 2 Invert...

Part #: 4740 2× Trans-Neon Orange

Technic Rotation ...

Part #: 47455 6× Black

Technic Brick Spe...

Part #: 48169 4× Dark Bluish Gray

Technic Brick Spe...

Part #: 48171 6× Dark Bluish Gray

Technic Brick Spe...

Part #: 48172 1× Black

Bar 1L with Clip ...

Part #: 48729b 1× Dark Bluish Gray

Windscreen 6 x 6 ...

Part #: 50747 1× Trans-Clear

Grille / Spoiler ...

Part #: 50949 1× White

Animal Body Part,...

Part #: 53451 1× Black

Wheel 18 x 14 wit...

Part #: 55981 1× Yellow

Flexible Ribbed H...

Part #: 57539 2× Flat Silver

Window 1 x 2 x 2 ...

Part #: 60032 4× Yellow

Brick Arch 1 x 3 ...

Part #: 6005 4× Yellow

Brick Special 1 x...

Part #: 60476 4× Black

Plate Special 1 x...

Part #: 60478 1× Black

Brick Sloped 18° ...

Part #: 61409 4× Black

Turntable 4 x 4 S...

Part #: 61485 1× Light Bluish Gray

Plate Special 2 x...

Part #: 75937 1× Black

Plate Round 1 x 1...

Part #: 85861 1× Pearl Gold

Brick Sloped 30° ...

Part #: 85984 2× Light Bluish Gray

Brick Round 4 x 4...

Part #: 87081 1× Black

Creature Body Par...

Part #: 89522 1× Flat Silver

Large Figure Weap...

Part #: 92220 4× Flat Silver

Brick Curved 4 x ...

Part #: 93606 2× Yellow

Tile Round 1 x 1

Part #: 98138 2× Trans-Light Blue

Arm Mechanical wi...

Part #: 98313 3× Black

Spoiler 2 x 4 wit...

Part #: 98834 2× Yellow

Bracket 1 x 2 - 2...

Part #: 99207 7× Light Bluish Gray

This set features a good selection of yellow and black pieces, useful for building robots and other mechanical creations. The Technic rotation joints are particularly valuable for adding articulation to MOCs.

🛒 Where to Buy

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LEGO (US)

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$24.99

💎 Notable Parts

Black Technic Rotation Joint Ball Loop with Two Perpendicular Pins with Friction (6x) $1.80

Dark Bluish Gray Technic Brick Special 2 x 2 with Pin Hole, Rotation Joint Ball Half [Vertical Side] (6x) $1.80

Yellow Plate Special 3 x 2 with Rounded End, Hole (4x) $0.60

Est. BrickLink Part Value

$4.20

💡 MOC Potential

🤖 A larger, more detailed robot with enhanced articulation

🚗 A futuristic submarine or underwater vehicle

🌳 A coral reef scene with various sea creatures

Community Insights

Real opinions from Reddit and YouTube

What Reddit Says

No Reddit discussions found for this set.

What YouTubers Say

1 video found

BlockTalk AI

Victor Loves Toys! praises the LEGO Creator Underwater Robot (31090) for its excellent 3-in-1 value and appealing retro sci-fi mech design. The channel highlights the set's high playability and great articulation, which is achieved through its numerous clicking ball joints.