LEGO® Creator 31115 Space Mining Mech

Current best price

LEGO 31115 is currently available from $79.99 incl. shipping at Walmart.com. Only one retailer in our comparison stocks it.

Updated November 3, 2026 at 12:01 AM EST

LEGO 31115 price comparison: where is it cheapest?

Prices incl. shipping to the US ·

Brickfact may earn a commission when you buy through a merchant link. Commissions do not determine the order of offers. How Brickfact compares prices

iFurther information
The Lego set Space Mining Mech with the set number 31115 is part of the LEGO Creator theme and is recommended for ages 7+. It was released in March 2021. The model has 327 pieces, and we estimate it takes around < 1 hour to build. It was designed by Marin Stipkovic.30 Brickfact users have this set in their collection.
The set weighs about 0.427 kg. The box measures 10.3 x 7.5 x 2.4 in (26.2 x 19.1 x 6.1 cm). The recommended retail price is $24.99.
Our Brickfact Lego price comparison compares the prices of 1 shop for this set. It is currently cheapest at Walmart.com for $79.99 including shipping. That is $0.24 per piece. Unfortunately, the set is currently not available below its recommended retail price.
The Part-Out-Value (POV) is the sum of the average prices paid on bricklink.com for all parts of this set. It is about $102.56. You save around $22.57 if you buy the complete set at Walmart.com instead of the individual parts on bricklink.com. The current best offer therefore has a POV rate of 1.28: the Part-Out-Value divided by the current best price on Brickfact.

Lego 31115 product data

Set Information

Set ID
31115
Theme
Pieces
327
Designer
Marin Stipkovic
Building Time
< 1 hour
Age Range
7+

Availability

Release
03/2021
Retiring Status
Retired (12/2022)

Price Information

RRP
$24.99
Insiders Points (for purchase at Lego)
163
Part Out Value
$102.56

Packaging

Weight
0.427 kg
Packaging dimensions
10.3 x 7.5 x 2.4 in
EAN (GTIN13)
5702016889376

Popularity with Brickfact users

users have this set
30

30 Brickfact users have Space Mining Mech in their collection.

Based on anonymized Brickfact user collections; shown only for sets with at least 10 users. As of November 2, 2026.

LEGO 31115 price trend

Average sale price on secondary marketplaces – not the new price at retailers.

Current market value
$48.59
Growth vs. RRP
+94.4 % $24.99
Range
$36.78 – $50.72
Average
$43.37

Loading price history…

LEGO 31115 price history: how has the price changed?

Brickfact has been recording retailer prices since 10/12/2026. Best price so far: $79.99 (8 days ago).

Current best price
$79.99 +220% vs. RRP
Best price since 10/12/2026
$79.99 +220% vs. RRP · 8 days ago

Daily lowest prices at the tracked shops, including shipping. Gaps indicate days with no recorded price. The table lists each shop’s lowest price.

Lowest price per retailer (since 10/12/2026)

RetailerCurrentLowest priceDate
Walmart.com LogoWalmart.com$79.99$79.9911/03/26

Lowest price per day that Brickfact recorded at the retailers in the price comparison, including shipping where known – as in the comparison above. Amazon offers are not included in the price history.

Official Set Description for LEGO 31115 Space Mining Mech

LEGO® fans will love playing out action scenes with this impressive Creator 3in1 Space Mining Mech (31115) building set. The mech toy’s cool features include posable legs and arms, a spinning buzz saw, a jetpack on its back, and a face with changeable expressions, giving kids everything they need for hours of roleplay fun.

The best toys for creative fun
Space and robot fans can enjoy 3 different build-and-play experiences with this LEGO Creator 3in1 set. They can create the Space Mining Mech, which comes with an alien figure and a set of crystals, then rebuild it into a posable 4-legged cargo carrier with a robot pilot or make a posable 2-legged LEGO robot.

An amazing collection of 3in1 LEGO toys
LEGO Creator 3in1 building toys open a world of exciting possibilities with 3 models to create in every box! Creator 3in1 sets inspire the best imaginative play with an amazing collection of models to fuel kids’ passions, including cars, creatures and planes.

  • This LEGO® Creator 3in1 Space Mining Mech (31115) building set lets imaginative kids build any of 3 exciting models: a mech toy, cargo carrier and space robot toy.
  • The Space Mining Mech model includes a green alien figure and a set of crystals to add an extra dimension to kids’ adventures in space.
  • Creative kids can use the mech toy to compete with an alien for crystals, or zoom around the galaxy in a 4-legged cargo carrier, or fight space battles with a 2-legged mech.
  • The posable Space Mining Mech comes with a buzz saw, a jetpack and a face that can change expressions, while the 4-legged cargo carrier and 2-legged mech each feature a robot pilot.
  • With 327 pieces, this LEGO® Creator 3in1 set is a rewarding build for passionate space fans aged 7 and up and makes the perfect birthday or holiday gift.
  • This mech toy stands over 6 in. (15 cm) high and is a great portable size to play with at home or on the go.
  • Create even bigger adventures with other LEGO® Creator 3in1 sets: Wild Lion (31112), Race Car Transporter (31113), Superbike (31114), Safari Wildlife Tree House (31116) and Surfer Beach House (31118).
  • LEGO® Creator 3in1 sets let kids enjoy endless imaginative play as they create action-packed stories around the 3 different cool and colorful models in every box.
  • For more than 6 decades LEGO® building bricks have been made from high-quality materials to ensure they consistently connect and pull apart every time.
  • LEGO® building bricks meet stringent global safety standards.

Building Instruction for LEGO 31115 Space Mining Mech

LEGO 31115 Frequently Asked Questions

How much does LEGO 31115 Space Mining Mech cost?
The lowest price in the Brickfact price comparison is currently $79.99 incl. shipping at Walmart.com. The RRP is $24.99.
Where can I buy LEGO 31115 cheapest?
Only one retailer in the Brickfact price comparison currently stocks LEGO 31115: Walmart.com ($79.99).
Is LEGO 31115 still available?
LEGO has retired 31115 Space Mining Mech. New copies are still available at 1 retailers in our price comparison while stocks last.
When was LEGO 31115 cheapest?
Since tracking began on 10/12/2026, the lowest shop price recorded by Brickfact for LEGO 31115 was $79.99 on 10/26/2026 at Walmart.com, including shipping. Amazon prices are not included.
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