LEGO Marvel Investment Picks 2025: Best Retiring Sets
1 day ago
LEGO Marvel investment picks 2025: top retiring sets (Daily Bugle, Spider-Man Final Battle), minifigure highlights, growth projections and exit strategy....
Read MoreLEGO Mystery Castle 70437
close
close
I Own This
I Want This
Theme
Sub Theme
N/A
LEGO® Mystery Castle 70437, part of the Hidden Side theme, was released in June 2020. This set includes 1035 pieces and features 5 minifigures: Parker L. Jackson, Bright Light Blue Denim Jacket, Medium Lavender Hair with Headphones, Angry / Smirk | Shadow Walker with Helmet | Nehmaar Reem | Vaughn Geist | Jack Davids, Red Jacket with Backwards Red Cap. The Mystery Castle is an augmented reality (AR) haunted castle building toy that combines a buildable LEGO model with an app, allowing interaction with the model to trigger events in a digital world. The LEGO Hidden Side AR app brings the mystery castle to life, allowing children to explore, solve mysteries, hunt ghosts, and battle the boss ghost, The Maw, in an exciting digital world. 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 action-packed LEGO 70437 playset is perfect for kids aged 9 and up, and when built, the augmented reality playset measures over 13" (34cm) high, 12" (31cm) wide, and 10" (27cm) deep. The Hidden Side AR app is compatible with selected iOS and Android devices, and children can easily get started with this LEGO Hidden Side augmented reality toy by following the easy-to-follow instructions in the box and online.
Set Details
Set Number:
70437
Set Name:
Mystery Castle
Theme:
Hidden Side
Sub Theme:
N/A
Year:
2020
Release Date:
01/06/2020
Retired:
31/12/2020
Availability:
Retired
Minifigures:
Pieces:
1035
Set Pricing
RRP:
$100
Total Growth:
94%
Value:
$194
Annual Growth:
15%
Used Value:
?
Theme
Hidden Side invites builders into a world where the supernatural meets the everyday, blending augmented reality with imaginative play. Set in the fictional town of Newbury, this theme revolves around a group of ghost-hunting teens who use their skills and gadgets to uncover the mysteries lurking in the shadows. Each set features a unique location, from haunted schools to eerie graveyards, where players can interact with both physical builds and digital elements through a dedicated app. As builders construct their sets, they unlock a narrative filled with ghostly encounters and challenges that require teamwork and strategy. The app enhances the experience by allowing users to see hidden elements and characters that come to life through their devices, creating a dynamic interplay between the physical and digital worlds. With its blend of adventure, mystery, and technology, Hidden Side encourages creativity and problem-solving, making every play session a thrilling exploration of the unknown.
If you enjoy our content and you are about to purchase your next LEGO® set, we'd appreciate if you'd help us by clicking through one of our affiliate links.
Shop now at Lego Shop now at Amazon Shop now at EbayPlease remember to support our community and buy your LEGO via our affiliate links wherever possible and please remember to accept cookies in your browser.
Current Offers
We have 0 offers on this lego set.
Minifigures in the 70437 LEGO Set
close
close
I Own This
I Want This
Set Number
hs053
Theme/Sub Theme
Hidden Side
/
N/A
Year
2020
Availability
Available
RRP:
N/A
Total Growth:
0%
Value:
$3
Annual Growth:
N/A
close
close
I Own This
I Want This
Set Number
hs065
Theme/Sub Theme
Hidden Side
/
N/A
Year
2020
Availability
Retired
RRP:
N/A
Total Growth:
0%
Value:
$13
Annual Growth:
N/A
close
close
I Own This
I Want This
Set Number
hs066
Theme/Sub Theme
Hidden Side
/
N/A
Year
2020
Availability
Retired
RRP:
N/A
Total Growth:
0%
Value:
$20
Annual Growth:
N/A
close
close
I Own This
I Want This
Set Number
hs067
Theme/Sub Theme
Hidden Side
/
N/A
Year
2020
Availability
Available
RRP:
N/A
Total Growth:
0%
Value:
$3
Annual Growth:
N/A
close
close
I Own This
I Want This
Set Number
hs074
Theme/Sub Theme
Hidden Side
/
N/A
Year
2020
Availability
Available
RRP:
N/A
Total Growth:
0%
Value:
$4
Annual Growth:
N/A
Set Details
Set Number:
70437
Set Name:
Mystery Castle
Theme:
Hidden Side
Sub Theme:
N/A
Year:
2020
Release Date:
01/06/2020
Retired:
31/12/2020
Availability:
Retired
Minifigures:
Pieces:
1035
Set Pricing
RRP:
$100
Total Growth:
94%
Value:
$194
Annual Growth:
15%
Used Value:
?
If you enjoy our content and you are about to purchase your next LEGO® set, we'd appreciate if you'd help us by clicking through one of our affiliate links.
Shop now at Lego Shop now at Amazon Shop now at EbayTheme
Hidden Side invites builders into a world where the supernatural meets the everyday, blending augmented reality with imaginative play. Set in the fictional town of Newbury, this theme revolves around a group of ghost-hunting teens who use their skills and gadgets to uncover the mysteries lurking in the shadows. Each set features a unique location, from haunted schools to eerie graveyards, where players can interact with both physical builds and digital elements through a dedicated app. As builders construct their sets, they unlock a narrative filled with ghostly encounters and challenges that require teamwork and strategy. The app enhances the experience by allowing users to see hidden elements and characters that come to life through their devices, creating a dynamic interplay between the physical and digital worlds. With its blend of adventure, mystery, and technology, Hidden Side encourages creativity and problem-solving, making every play session a thrilling exploration of the unknown.
Investing in LEGO 101 – The Investabrick Guide to LEGO Investment
1 year ago
Welcome to the Investabrick guide to LEGO Investment where we look at the key factors that affect investing in LEGO and provide you with LEGO investment advice....
Read More
LEGO Batman Arkham Asylum (76300) Launches Today – A Must-Have for Fans & Collectors
1 day ago
LEGO has given Batman fans the set we’ve all been waiting for: the brand-new LEGO DC Batman Arkham Asylum (76300) is officially available from today....
Read More
Best LEGO Star Wars Investments 2025: UCS & Set Rankings
2 days ago
Our 2025 LEGO Star Wars buy list ranks the best UCS and starfighters retiring this year, with 1/3/5-year projections, discount targets and exit timing....
Read More
LEGO UCS Death Star 75419: Release Date, Price & GWP
5 days ago
LEGO UCS Death Star (75419) releases 4 Oct 2025: £899.99/$999.99, 9,023 pieces, 38 minifigs. Insiders early access 1 Oct + TIE Fighter (40771) GWP....
Read More
LEGO Insiders Harry Potter Sale 2025: Huge Discounts on Retiring Sets + Bonus Rewards
1 week ago
LEGO Insiders Harry Potter sale: Save big on retiring sets like Diagon Alley & Hogwarts Icons, with bonus rewards, points & GWP stacking tips....
Read More
LEGO Instructions: Replace, Restore & Protect (Guide)
5 days ago
Missing LEGO instructions? Get official PDFs, safe community options, rebuild tips and storage advice to protect value and boost CIB resale prices....
Read MoreTop Offers
If you enjoy our content and you are about to purchase your next LEGO® set, we'd appreciate if you'd help us by clicking through one of our affiliate links.
Shop now at Lego Shop now at Amazon Shop now at EbayPlease remember to support our community and buy your LEGO via our affiliate links wherever possible and please remember to accept cookies in your browser.