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71455 LEGO DREAMZzz Trials of the Dream Chasers Grimkeeper the Cage Monster thumbnail image

71455 LEGO DREAMZzz Trials of the Dream Chasers Grimkeeper the Cage Monster
Images 6Description 
71455 LEGO DREAMZzz Trials of the Dream Chasers Grimkeeper the Cage Monster
  • Grimkeeper the Cage Monster thumbnail
  • Grimkeeper the Cage Monster thumbnail
  • Grimkeeper the Cage Monster thumbnail
  • Grimkeeper the Cage Monster thumbnail
  • Grimkeeper the Cage Monster thumbnail
  • Grimkeeper the Cage Monster thumbnail

LEGO 71455 Grimkeeper the Cage Monster is a DREAMZzz set valued at $40 for new and sealed sets, up 5% from an original retail price of $37.99. The set retired in January 2025 with annual appreciation averaging 2.82% since. Used copies are valued between $33 and $37 depending on condition. Secondary market prices for new and sealed sets typically fall between $38 and $45. The set holds level, even though its value has risen over the last three months.

Grimkeeper the Cage Monster Value (New/Sealed)

This chart represents the current new/sealed value of the set Grimkeeper the Cage Monster since January 2025. Very high accuracy
LEGO 71455 Grimkeeper the Cage Monster is a DREAMZzz Trials of the Dream Chasers set released in 2023, containing 274 pieces and 2 minifigures. It builds the Grimkeeper with a cage integrated into its torso and articulated arms, legs, and torso. The set also provides parts to configure Z-Blob as either a mini-plane or a hoverbike. Minifigures of Mateo and Cooper are included with accessories.

At around $40 for a sealed copy, Grimkeeper the Cage Monster has averaged 2.8% a year since retirement. Our forecast sees it reaching about $51 within five years. The average used price is $33 for those in good overall condition. The 2 included minifigs account for approximately 18% of the set's total value. New and sealed listings currently range from $35 to $45. The set was available for 17 months, from August 2023 to January 2025.
All regions

For Sale (New/Sealed)

 (US) 71455 Dreamzzz: Grimkeeper the Cage Monster - NEW
BrickEconomy Choice
$30.00
(US) Dreamzzz: Grimkeeper the Cage Monster (71455) $30.00
-24.9%
(US) 71455 DREAMZzz: Grimkeeper the Cage Monster New and Sealed $32.25
-19.3%
(US) Dreamzzz: Grimkeeper the Cage Monster (71455) Retired - New In Box $32.95
-17.5%
(US) 71455 Dreamzzz Grimkeeper the Cage Monster New Sealed Retired NISB. $32.99
-17.4%
(US) Grimkeeper the Cage Monster from BrickLink seller NightlordBuilds $33.30
-16.6%
(US) Dreamzzz: Grimkeeper the Cage Monster (71455) New and Sealed $33.99
-14.9%
(US) Grimkeeper the Cage Monster from BrickLink seller tekaylasunrise $34.00
-14.9%
(US) Dreamzzz Grimkeeper The Cage Monster 71455 NEW Sealed Inv-1371 $34.95
-12.5%
(US) DREAMZzz Grimkeeper the Cage Monster 71455 274 pcs Age 7+ Separator $34.99
-12.4%
(US) Dreamzzz: Grimkeeper the Cage Monster (71455) $34.99
-12.4%
(US) DreamZzz Grimkeeper The Cage Monster 71455 $35.00
-12.4%
(CA) Grimkeeper the Cage Monster LEGO Dreamzzz 71455 Sealed Set $35.38
-11.4%
(US) Grimkeeper the Cage Monster from BrickLink seller MikesB4K $36.99
-7.4%
(US) Dreamzzz: Grimkeeper the Cage Monster 71455 NEW & IN BOX FACTORY SEALED $37.99
-4.9%
(US) Dreamzzz 71455 Grimkeeper The Cage Monster $37.99
-4.9%
(US) Dreamzzz: Grimkeeper the Cage Monster (71455) New Unopened $38.50
-3.6%
(US) Dreamzzz: Grimkeeper the Cage Monster (71455) Building Toy NEW SEALED $38.95
-2.5%
(US) LEGO: Dreamz Grimkeeper the Cage Monster Halloween SEALED (71455) $38.99
-2.4%
(TH) New Sealed - LEGO DREAMZzz Grimkeeper the Cage Monster (71455) $39.46
-1.2%
(US) LEGO: Dreamz Grimkeeper the Cage Monster Halloween SEALED (71455) $39.87
-0.2%
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Sales Distribution (Last 90 Days)

This chart shows the distribution of sales for the past three months of new/sealed 71455 Grimkeeper the Cage Monster.

Sale Trends

This chart shows the sales trends of new/sealed 71455 Grimkeeper the Cage Monster.

Market Momentum

Neutral
This set's value is climbing and it is outpacing its theme, but momentum is holding level for now.
DemandUpper half in DREAMZzz
High demand
12 months agoToday
SupplyTypical for DREAMZzz
Listings up 5% this month
12 months agoToday
Growth vs peers+8% typical for Trials of the Dream Chasers
+14% over the past year
12 months agoToday
Outlook:7% bearish·73% neutral·20% bullish
Why it's moving, signals and outlook

Grimkeeper the Cage Monster Minifigs

Grimkeeper the Cage Monster contains 2 minifigures. Cooper is exclusive to this set.
drm008
Cooper
Cooper with a red racing driver jacket with dark blue legs - drm008
Exclusive
Value $4.65
drm003
Mateo
Mateo with a bright green utility belt - drm003
3 sets
Value $2.52

Compared with other Trials of the Dream Chasers sets

#5 of 7
By growth since retail, +5%
+0%+32%
In the bottom half of the group.
$0.15 a piece
New and sealed value per piece
This set
$0.15
Typical
$0.11
About 35% above the group's typical value per piece.
Top sets by growthSince retail
171469 Nightmare Shark Ship+32%
271454 Mateo and Z-Blob the Robot+20%
340657 Dream Village+15%
571455 Grimkeeper the Cage Monster+5%

Sets in DREAMZzz / Trials of the Dream Chasers

71469 Nightmare Shark Ship

Theme / Subtheme DREAMZzz / Trials of the Dream Chasers
Year 2023
Pieces / Minifigs 1,389 / 4
Availability Retired
71469 LEGO DREAMZzz Trials of the Dream Chasers Nightmare Shark Ship
Retail $139.99
Value $185.03
Growth  +32.2%
Annual growth 12.7%

71461 Fantastical Tree House

Theme / Subtheme DREAMZzz / Trials of the Dream Chasers
Year 2023
Pieces / Minifigs 1,257 / 4
Availability Retired
71461 LEGO DREAMZzz Trials of the Dream Chasers Fantastical Tree House
Retail $109.99
Value $95.00

71460 Mr. Oz's Spacebus

Theme / Subtheme DREAMZzz / Trials of the Dream Chasers
Year 2023
Pieces / Minifigs 878 / 10
Availability Retired
71460 LEGO DREAMZzz Trials of the Dream Chasers Mr. Oz's Spacebus
Retail $99.99
Value $99.14

71459 Stable of Dream Creatures

Theme / Subtheme DREAMZzz / Trials of the Dream Chasers
Year 2023
Pieces / Minifigs 681 / 4
Availability Retired
71459 LEGO DREAMZzz Trials of the Dream Chasers Stable of Dream Creatures
Retail $79.99
Value $76.14

71458 Crocodile Car

Theme / Subtheme DREAMZzz / Trials of the Dream Chasers
Year 2023
Pieces / Minifigs 494 / 5
Availability Retired
71458 LEGO DREAMZzz Trials of the Dream Chasers Crocodile Car
Retail $59.99
Value $59.57

71457 Pegasus Flying Horse

Theme / Subtheme DREAMZzz / Trials of the Dream Chasers
Year 2023
Pieces / Minifigs 482 / 4
Availability Retired
71457 LEGO DREAMZzz Trials of the Dream Chasers Pegasus Flying Horse
Retail $49.99
Value $55.00
Growth  +10.0%
Annual growth 2.6%

40657 Dream Village

Theme / Subtheme DREAMZzz / Trials of the Dream Chasers
Year 2023
Pieces / Minifigs 434 / 4
Availability Retired
40657 LEGO DREAMZzz Trials of the Dream Chasers Dream Village
Retail $29.99
Value $34.58
Growth  +15.3%
Annual growth 5.8%

71456 Mrs. Castillo's Turtle Van

Theme / Subtheme DREAMZzz / Trials of the Dream Chasers
Year 2023
Pieces / Minifigs 434 / 5
Availability Retired
71456 LEGO DREAMZzz Trials of the Dream Chasers Mrs. Castillo's Turtle Van
Retail $47.99
Value $49.49
Growth  +3.1%
Annual growth 1.6%

71453 Izzie and Bunchu the Bunny

Theme / Subtheme DREAMZzz / Trials of the Dream Chasers
Year 2023
Pieces / Minifigs 259 / 2
Availability Retired
71453 LEGO DREAMZzz Trials of the Dream Chasers Izzie and Bunchu the Bunny
Retail $19.99
Value $20.00
Growth  +0.1%
Annual growth 1.2%

71454 Mateo and Z-Blob the Robot

Theme / Subtheme DREAMZzz / Trials of the Dream Chasers
Year 2023
Pieces / Minifigs 237 / 2
Availability Retired
71454 LEGO DREAMZzz Trials of the Dream Chasers Mateo and Z-Blob the Robot
Retail $19.99
Value $24.00
Growth  +20.1%
Annual growth 10.0%

30636 Z-Blob and Bunchu Spider Escape

Theme / Subtheme DREAMZzz / Trials of the Dream Chasers
Year 2023
Pieces / Minifigs 44 / 1
Availability Retired
30636 LEGO DREAMZzz Trials of the Dream Chasers Z-Blob and Bunchu Spider Escape
promotional
Value $3.79
Annual growth 25.4%

Grimkeeper the Cage Monster Questions

How much is the Grimkeeper the Cage Monster set worth?

Today's value for a new, sealed copy of Grimkeeper the Cage Monster is $40. Sealed copies typically change hands for $38 to $45. Its value has climbed 4% over the last 90 days. On the used market, expect to pay around $33.

Has LEGO 71455 Grimkeeper the Cage Monster been retired?

Yes. Grimkeeper the Cage Monster retired in January 2025, having been in production for 17 months, 2 months longer than the typical Trials of the Dream Chasers set. Collectors now buy it on the secondary market, from sellers on sites like eBay and BrickLink.

Is LEGO 71455 Grimkeeper the Cage Monster worth more than it cost?

Yes. Since it sold for $37.99 in shops, Grimkeeper the Cage Monster has risen 5% in value, about 2.8% a year. That is in line with the Trials of the Dream Chasers average of 2.6% a year.

Will LEGO 71455 Grimkeeper the Cage Monster go up in value?

Our forecast says yes. Next year's forecast for Grimkeeper the Cage Monster is $42, about 5% more than today. The short-term market reading is neutral. Demand, supply and price show no clear direction. Like any forecast, this is an estimate.

What comes in LEGO 71455 Grimkeeper the Cage Monster?

Grimkeeper the Cage Monster has 274 pieces, about $0.14 each at retail, and 2 minifigures: Cooper and Mateo. Their combined value is about $7.17, about 18% of what the set is worth. Cooper is the most valuable at $4.65. Cooper cannot be found in any other set.

Top lists

My Collection

Grimkeeper the Cage Monster Reviews

39 reviews
4.7
Collectors
Investors
The Brick Fan
“The LEGO DREAMZzz Grimkeeper the Cage Monster (71455) is an okay set. There’s a good amount of playability to it but was disappointed that the main draw of the DREAMZzz line with the alternate builds wasn’t fully expressed here with the Z-Blob build as you had to fully take... More it apart to build the other.”
Full review at www.thebrickfan.com
Brickset
“Numerous fantasy creatures have been released in recent years, between NINJAGO, NEXO Knights, Monkey Kid and other themes. 71455 Grimkeeper the Cage Monster maintains their high standard, particularly in relation to the unique character of this model and the opportunity for... More expressive posing.”
Full review at brickset.com

About DREAMZzz Trials of the Dream Chasers

The LEGO DREAMZzz theme which was released in the summer of 2023 is based on the LEGO TV show, LEGO Dreamzzz: Trials of the Dream Chasers. The LEGO DREAMZzz series follows the adventures of school friends, Mateo, Izzie, Cooper, Logan and Zoey, as they join a secret agency and learn to use the power of imagination to journey into the Dream World.

Trials of the Dream Chasers was introduced in 2023 and currently consists of 12 sets. As of today, 71469 Nightmare Shark Ship is the most valuable Trials of the Dream Chasers set with an estimated new/sealed value of $185.
Summary
DREAMZzz Trials of the Dream Chasers Grimkeeper the Cage Monster set 71455 was released in August 2023, retailing for $38, but has since been retired. New, unopened Grimkeeper the Cage Monster sets are valued at $40, while used sets can be found for $33 in good condition.
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Kids aged 7+ battle a fearsome nightmare figure in the LEGO® DREAMZzz™ Grimkeeper the Cage Monster (71455) building set. Based on the action that takes place on the DREAMZzz TV show, the set lets kids build the villainous Grimkeeper and then help Mateo and Z-Blob rescue their friend Cooper from his evil clutches before he takes him to the Nightmare King.


1 set, 2 adventures
To rescue Cooper from the Grimkeeper, kids can choose between 2 building options. They can build Z-Blob as a mini-plane to confront the villain, or as a hoverbike to pursue and intercept the Grimkeeper and free Cooper when the moment’s right. This lets kids choose their own path and enjoy double the playtime.

Bringing the fun to life
Minifigures of Mateo and Cooper bring the action to life. Their accessories include a belt, pencil spear and hourglass, which are important to their characters in the TV show.

Bring a villain to life – Kids can enjoy imaginative play with the LEGO® DREAMZzz™ Grimkeeper the...
Description provided by LEGO©