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Retailer prices for 70437 are sorted by the latest lowest price.

Retailer prices
No retailer prices are available for this LEGO set yet.

Price history 70437

Full price history at a glance.

We check Dutch retailers every day. This graph shows the full daily-low price series we have for this set.

Lowest yet
€219,99
14 Dec 2025 · Unieke Bricks
Peak price
€219,99
14 Dec 2025 · Unieke Bricks
Average
€219,99
120% above RRP
RRP
€99,99
reference price

Daily lowest price tracked across 1 Dutch retailers. The dotted line marks LEGO's recommended retail price.

Source: daily measurement at 1 Dutch retailers, 14 Dec 2025 – 16 Feb 2026. RRP via LEGO.com.

Last 12 price points for LEGO 70437 Mystery Castle
Date Price Retailer Stock
€219,99 Unieke Bricks In stock
€219,99 Unieke Bricks In stock
€219,99 Unieke Bricks In stock
€219,99 Unieke Bricks In stock
€219,99 Unieke Bricks In stock
€219,99 Unieke Bricks In stock
€219,99 Unieke Bricks In stock
€219,99 Unieke Bricks In stock
€219,99 Unieke Bricks In stock
€219,99 Unieke Bricks In stock
€219,99 Unieke Bricks In stock
€219,99 Unieke Bricks In stock
- BricksDeal Forecast Beta

Price will likely move slightly.

Calibrated forecast based on historical pricing, seasonal patterns and retailer behavior. Tuned conservatively: rather cautious than optimistic.

Drop likelihood Next 60 days
50%
Medium · ±6%

Signal is mixed. Small movements are more likely than a big drop.

Expected low - within 60 days
Vs. today - -

Projected price path

Actual price Predicted path 80% interval
60-day window Model v1 · 14 historic points
Price position +++
Still has room
We compare current price against RRP and lowest tracked price.
Retailer pressure ++
0 retailers compared
More retailers usually means more competition on the lowest price.
Stock +
0 in stock
Availability lowers the chance of a scarcity premium.
History base
14 points
The v1 migration uses this as a transparent baseline.
Based on 14 price points · 0 retailers · transparent baseline How this model works

About this set

What to know about LEGO 70437 before you buy.

Fans of virtual reality and video games love the amazing LEGO® Hidden Side universe, where physical and digital worlds meet to provide an incredible, single or multiplayer augmented reality (AR) play experience. This LEGO Hidden Side Mystery Castle (70437) playset combines a buildable LEGO model with an app, so interaction with the model triggers events in a digital world. Digitally interactive ghost-hunting toy The mystery castle springs to life when viewed through a smart device with the LEGO Hidden Side AR app. Children then get to explore, solve mysteries, hunt ghosts, and battle the boss ghost The Maw in an exciting digital world. The possessed castle model also folds out, setting the scene for action-packed role play with the Jack, Parker, Vaughn, Nehmaar Reem, and 2 Shadow-Walker minifigures. An ever-evolving digital play experience The LEGO Hidden Side universe is set in the fictional town of Newbury, where ghosts haunt people and buildings. The AR play experience is constantly enhanced through new content, characters, and special events. This LEGO® Hidden Side building kit combines the open creative play of LEGO building toys with digital play for an immersive single or multiplayer augmented reality (AR) experience. Perfect for kids aged 9 and up. What’s in the box? A digitally interactive LEGO® Hidden Side castle model with lots of manual features including an accessible observatory tower, plus Jack, Parker, Vaughn, Nehmaar Reem, and 2 Shadow-Walker minifigures. The mystery castle model comes to life when viewed through a smart device equipped with the free LEGO® Hidden Side AR app. Kids then get to solve mysteries, find items, and hunt ghosts in a haunted digital world. Looking for an ideal birthday or any-other-day gift for kids aged 9 and up? This action-packed LEGO® Hidden Side playset is a great gift idea for LEGO builders and fans of virtual reality and video games. When built, this LEGO® Hidden Side Mystery Castle (70437) augmented reality playset measures over 13" (34cm) high, 12" (31cm) wide, and 10" (27cm) deep. Battery-free building toy. The Hidden Side AR app is compatible with selected iOS and Android devices. Please check compatibility at www.LEGO.com/devicecheck. Children should ask parents' permission before going online. Getting started with this LEGO® Hidden Side augmented reality toy is child’s play. You’ll find easy-to-follow instructions in the box and online – so simply tear open the LEGO brick bags and let the fun begin! The LEGO® Hidden Side universe is set in thefictional town of Newbury, where ghosts haunt people and buildings. The augmented reality play experience is constantly enhanced through new content, ghosts, and events. LEGO® Hidden Side toy construction sets meet the highest industry standards and quality criteria to ensure that the bricks and pieces are consistent, compatible, and continue to connect and pull apart easily every time. At the LEGO Group, we drop, heat, crush, twist, and analyze our building bricks and pieces to ensure that every LEGO® Hidden Side playset meets the highest global safety and quality standards.

Frequently asked questions

Quick answers about price, stock and set data.

What is the lowest price for Mystery Castle?
There is no current price available right now.
Has LEGO 70437 ever been cheaper?
The lowest historical price was €219,99 on 14 Dec 2025 at Unieke Bricks.
How many pieces does LEGO 70437 have?
This set has 1,035 pieces.
What year is this set from?
LEGO 70437 was released in 2020.
What is the RRP for LEGO 70437?
LEGO's recommended retail price is €99,99.
What is the recommended age for LEGO 70437?
LEGO recommends ages 9+ for this set.
Is LEGO 70437 still available?
This set is not in stock at any of the retailers we track right now. Set a price alert to hear when it returns.
Which retailers do you compare?
When retailers offer this set, prices will appear here.
How often do you update prices?
We check prices multiple times per day at every tracked retailer and publish the most recent value on this page.