Cage the Nightmare!
Unleash the Grimkeeper

Build the villain, then choose your adventure to rescue Cooper! Will Z-Blob become a mini-plane or hoverbike? The fate of the Dream World is in your hands!

🏛 Dreamzzz
Set #71455

Grimkeeper the Cage Monster

Grimkeeper the Cage Monster is a uniquely imaginative set from the Dreamzzz theme.

🏆 Best For: Ideal for kids and creative LEGO fans who enjoy building imaginative creatures ⏱ 3 hr build 🧩 274 pcs 🎂 Ages 7+
★★★☆☆ 3.7

Fans appreciate the unique design and vibrant colors of Grimkeeper, making it a standout set in the Dreamzzz theme. Some find the price a bit high for the piece count, but the overall aesthetic and playability are well-received.

📝 Our Take

Grimkeeper the Cage Monster is a uniquely imaginative set from the Dreamzzz theme. Its striking color scheme and monstrous design immediately grab attention, offering a fresh take on creature builds within the LEGO universe.

This set is perfect for kids and imaginative builders looking for something different. The build is engaging and results in a fun, posable figure that sparks creativity and storytelling.

Skip this if you prefer realistic models or licensed themes. If you're after more traditional LEGO sets, consider the Creator or City lines instead.

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How does Grimkeeper compare to other creature builds in LEGO? What are some creative ways to incorporate Grimkeeper into a Dreamzzz diorama? Is this set a good value for the price, considering the piece count and play features? How posable is the Grimkeeper model for display purposes?

🧱 Building Experience

🧩
274
Pieces
3h
Build Time
📊
Intermediate
Difficulty
👤
7+
Ages
Build Highlights:
  • Unique color palette and parts usage create a visually striking monster
  • Posable limbs and cage feature enhance playability
  • Interesting building techniques for the monster's head and claws
  • Incorporates elements from the Dreamzzz universe, adding to the overall theme

📈 Investment Analysis

↓ Price declining
C+
Investment Grade
⏳ Active
Grimkeeper the Cage Monster presents a moderate investment opportunity. As part of the Dreamzzz theme, its long-term potential hinges on the theme's sustained popularity. The set's unique design and color scheme could attract collectors seeking distinctive LEGO creatures. While the piece count is relatively modest, the set's playability and visual appeal may drive demand in the secondary market. However, monitor the theme's performance and retirement status to gauge its true investment potential. The current falling price suggests it may be wise to wait for further discounts before investing.

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

📖 About This Set

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 Cage Monster (71455) building toy set, which is based on a storyline from the TV show
  • Fully articulated – The Grimkeeper has a fully articulated torso, arms and legs, making it easy for kids to pose it and recreate different scenes
  • A torso cage – The Grimkeeper has a cage in his torso where he keeps his prisoners
  • Choose the adventure – Kids can choose between turning Z-Blob into a mini-plane or a hoverbike
  • 2 minifigures – This building toy set comes with minifigures of Mateo and Cooper
  • Hours of play – The set is designed for kids aged 7 and over, who will get to spend hours of fun playing on their own or with friends
  • Dimensions – The Grimkeeper stands over 21 cm (8.5 in.) tall
  • A helping hand – The set features story-led building instructions, which are also available digitally in the LEGO® Builder app
  • Premium quality – LEGO® bricks are designed to connect consistently every time
  • Safety is a priority – LEGO® bricks have been rigorously tested to ensure they meet stringent safety requirements

Compare Similar Sets

Compared to other sets in the Dreamzzz theme, Grimkeeper the Cage Monster offers a unique creature-building experience. While sets like the Nightmare Shark Ship (71469-1) offer larger builds and more minifigures, Grimkeeper stands out for its distinctive design and color scheme. If you're looking for a smaller, more affordable set with a focus on creature design, Grimkeeper is a solid choice.

2 Minifigures Included

The set includes Cooper and Mateo, Utility Belt, providing essential characters for Dreamzzz storylines. These minifigures are not exclusive but add play value to the set.

📦 Full Parts Inventory - 92 unique parts • 255 total pieces

Animal Body Part, Barb / Claw / Tooth / Talon / Horn, Large Animal Body Part,...
Part #: 11089 Magenta
Technic Axle Pin 3L with Friction Ridges Lengthwise and 1L Axle Technic Axle Pin ...
Part #: 11214 Red
Bracket 5 x 2 x 1 1/3 with Holes, Pin Bottom Bracket 5 x 2 x 1...
Part #: 11215 Black
Plate Special 1 x 2 with Clip Horizontal on Side Plate Special 1 x...
Part #: 11476 Light Bluish Gray
Slope Curved 2 x 1 No Studs [1/2 Bow] Slope Curved 2 x ...
Part #: 11477 Dark Bluish Gray
Slope Curved 2 x 1 No Studs [1/2 Bow] Slope Curved 2 x ...
Part #: 11477 White
Slope Curved 2 x 2 x 2/3 Slope Curved 2 x ...
Part #: 15068 Black
Animal Body Part, Bat Wing with Shaft [Chima Bat Wing] Animal Body Part,...
Part #: 15082 Trans-Dark Pink
Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) Plate Special 1 x...
Part #: 15573 White
Tile Special 1 x 1 with Clip with Rounded Edges Tile Special 1 x ...
Part #: 15712 Black
Large Figure Shoulder Cover, Armor, Round, Smooth with Bar Large Figure Shou...
Part #: 1686 Pearl Titanium
Plate Special Round 2 x 2 with Center Stud (Jumper Plate) Plate Special Rou...
Part #: 18674 Black
Plate Round Corners 2 x 6 Double Plate Round Corne...
Part #: 18980 Black
Brick Round 2 x 2 D. Tube with Rotation Joint Ball Half Brick Round 2 x 2...
Part #: 1994 Black
Animal Body Part / Plant, Tail / Vine Curled with Bar Animal Body Part ...
Part #: 1997 White
Large Figure Shoulder Cover, Armor, Round, Smooth with Yellow Eyes, Dark Bluish Grey Stripes print Large Figure Shou...
Part #: 21560pr0020 White
Slope Inverted 45° 6 x 2 Double with 2 x 4 Recessed Slope Inverted 45...
Part #: 22889 White
Bar Holder with Hole and Bar Handle Bar Holder with H...
Part #: 23443 10× Light Bluish Gray
Lattice 3 x 6 Module with Studs Lattice 3 x 6 Mod...
Part #: 23444 Black
Equipment Hourglass with Pearl Gold Sand Pattern Equipment Hourgla...
Part #: 23945pat0003 Trans-Clear
Large Figure Weapon Lightsaber Hilt with Axle Hole and Two Bar Holders Large Figure Weap...
Part #: 24122 Black
Slope Curved 2 x 1 Inverted Slope Curved 2 x ...
Part #: 24201 Dark Bluish Gray
Technic Axle 3 with Stop Technic Axle 3 wi...
Part #: 24316 Reddish Brown
Plate 2 x 12 Plate 2 x 12
Part #: 2445 Black
Tile Round 1 x 1 Quarter Tile Round 1 x 1 ...
Part #: 25269 Dark Bluish Gray
Minifig Hipwear Utility Belt Minifig Hipwear U...
Part #: 27145 Bright Green
Plate Special 2 x 3 with Rocks Plate Special 2 x...
Part #: 27261 Black
Windscreen 6 x 4 x 1 Hexagonal with Handle Windscreen 6 x 4 ...
Part #: 27262 Trans-Bright Green
Bracket 1 x 2 - 1 x 4 [Rounded Corners at Bottom, Square Corners at Top] Bracket 1 x 2 - 1...
Part #: 28802 White
Brick 2 x 2 Brick 2 x 2
Part #: 3003 Black
Brick 1 x 2 Brick 1 x 2
Part #: 3004 Magenta
Brick Round 2 x 2 x 1 2/3 Dome Top, Hollow Stud with Black Eyes print Brick Round 2 x 2...
Part #: 30151bpr0001 Trans-Bright Green
Plate 2 x 4 Plate 2 x 4
Part #: 3020 Light Bluish Gray
Plate 2 x 3 Plate 2 x 3
Part #: 3021 Dark Bluish Gray
Plate 2 x 2 Plate 2 x 2
Part #: 3022 12× Black
Plate 2 x 2 Plate 2 x 2
Part #: 3022 Lime
Plate 1 x 2 Plate 1 x 2
Part #: 3023 Black
Plate 1 x 2 Plate 1 x 2
Part #: 3023 Magenta
Plate 2 x 8 Plate 2 x 8
Part #: 3034 Light Bluish Gray
Bar 4L (Lightsaber Blade / Wand) Bar 4L (Lightsabe...
Part #: 30374 Bright Light Orange
Brick 1 x 2 without Bottom Tube Brick 1 x 2 witho...
Part #: 3065 Trans-Bright Green
Tile 1 x 1 with Keyhole Print Tile 1 x 1 with K...
Part #: 3070bpr0147 Light Bluish Gray
Technic Brick 1 x 2 with Axle Hole Type 1 [+ Opening] and Bottom Pin Technic Brick 1 x...
Part #: 32064a Dark Bluish Gray
Plate Round 1 x 1 with Hollow Stud and Horizontal Bar 1L Plate Round 1 x 1...
Part #: 32828 Light Bluish Gray
Bar 1L with Clip [Cut Edges and One Side Hole] [Full Clip] Bar 1L with Clip ...
Part #: 3484 Dark Bluish Gray
Plate Special 1 x 2 Rounded with 2 Open Studs Plate Special 1 x...
Part #: 35480 Dark Bluish Gray
Plate 1 x 6 Plate 1 x 6
Part #: 3666 Black
Bracket 1 x 1 - 1 x 1 Bracket 1 x 1 - 1...
Part #: 36841 Light Bluish Gray
Plate 2 x 6 Plate 2 x 6
Part #: 3795 White
Plate 2 x 6 Plate 2 x 6
Part #: 3795 Black
Hinge Brick 1 x 2 Base Hinge Brick 1 x 2...
Part #: 3937 White
Brick Round 2 x 2 with Axle Hole Brick Round 2 x 2...
Part #: 3941 Yellow
Technic Pin 1/2 Technic Pin 1/2
Part #: 4274 Light Bluish Gray
Technic Axle Pin with Friction Ridges Lengthwise Technic Axle Pin ...
Part #: 43093 Blue
Plate Special 1 x 4 Offset with Bar Holes Plate Special 1 x...
Part #: 4590 Dark Bluish Gray
Brick Special 1 x 1 Studs on 4 Sides Brick Special 1 x...
Part #: 4733 Dark Bluish Gray
Technic Rotation Joint Ball Loop with Two Perpendicular Pins with Friction Technic Rotation ...
Part #: 47455 Black
Wedge Curved 2 x 3 x 2/3 Two Studs, Wing End Wedge Curved 2 x ...
Part #: 47456 Pearl Titanium
Wheel Arch, Curved Wedge 4 x 3 with 2 x 2 Opening and 4 Studs Wheel Arch, Curve...
Part #: 47755 White
Plate Special 1 x 2 [Side Handle Closed Ends] Plate Special 1 x...
Part #: 48336 Black
Animal Body Part, Barb / Claw / Tooth / Talon / Horn, Small Animal Body Part,...
Part #: 53451 Yellowish Green
Technic Ball Joint with Through Axle Hole Technic Ball Join...
Part #: 53585 Black
Slope 30° 1 x 1 x 2/3 (Cheese Slope) Slope 30° 1 x 1 x...
Part #: 54200 Magenta
Cone 1 x 1 [Top Groove] Cone 1 x 1 [Top G...
Part #: 59900 Tan
Plate Special 1 x 2 with Clips Horizontal [Open O Clips] Plate Special 1 x...
Part #: 60470b Dark Bluish Gray
Door 1 x 4 x 6 Barred with Stud Handle Door 1 x 4 x 6 Ba...
Part #: 60621 Pearl Titanium
Plate Special 1 x 1 with Clip Vertical [Thick Open O Clip] Plate Special 1 x...
Part #: 60897 Dark Bluish Gray
Plate Special 1 x 1 with Clip Horizontal [Thick Open O Clip] Plate Special 1 x...
Part #: 61252 White
Hinge Brick 2 x 2 Top Plate Thin Hinge Brick 2 x 2...
Part #: 6134 Light Bluish Gray
Plate Special 1 x 2 with Clip Horizontal on End Plate Special 1 x...
Part #: 63868 Dark Bluish Gray
Plate Special 1 x 2 with Clip Horizontal on End Plate Special 1 x...
Part #: 63868 Lime
Weapon Lightsaber Hilt with Bottom Ring Weapon Lightsaber...
Part #: 64567 Bright Light Orange
Animal Body Part, Horn (Cattle) Animal Body Part,...
Part #: 64847 Magenta
Brick Round 2 x 2 D. Tube with 45° Elbow and Axle Holes (Crossholes) at Each End [SHORT] Brick Round 2 x 2...
Part #: 65473 Black
Technic Brick Special 2 x 2 with Ball Socket Wide and Axle Hole, No Arm Holes Technic Brick Spe...
Part #: 67696 Black
Technic Beam 1 x 2 with Ball Joint Holes in Ball Technic Beam 1 x ...
Part #: 67697 Black
Launcher, Plate Special 1 x 2 with Mini Blaster Square Launcher, Plate S...
Part #: 69754 Light Bluish Gray
Launcher Trigger, Weapon Gun Trigger Launcher Trigger,...
Part #: 69755 Dark Bluish Gray
Technic Brick Special 1 x 2 with Pin Hole and 1 x 2 Plate Technic Brick Spe...
Part #: 73109 Light Bluish Gray
Bracket 3 x 2 x 1 1/3 with Bottom Stud Holder Bracket 3 x 2 x 1...
Part #: 73562 Dark Bluish Gray
Bracket 1 x 1 - 1 x 2 Inverted Bracket 1 x 1 - 1...
Part #: 73825 Black
Plate Special 1 x 2 with Clip Vertical on End Plate Special 1 x...
Part #: 78256 White
Brick Special 1 x 2 x 1 1/3 with Rotation Joint Socket Brick Special 1 x...
Part #: 80431 Dark Bluish Gray
Plate Round 1 x 1 with Open Stud Plate Round 1 x 1...
Part #: 85861 Light Bluish Gray
Slope 30° 1 x 2 x 2/3 Slope 30° 1 x 2 x...
Part #: 85984 Black
Slope 30° 1 x 2 x 2/3 with Green Screens and Controls Print Slope 30° 1 x 2 x...
Part #: 85984pr0013 Dark Bluish Gray
Tile 2 x 4 with Groove Tile 2 x 4 with G...
Part #: 87079 Black
Brick Special 1 x 1 with Stud on 1 Side Brick Special 1 x...
Part #: 87087 Black
Animal Body Part, Barb / Claw / Tooth / Talon / Horn, Medium Animal Body Part,...
Part #: 87747 10× Yellowish Green
Creature Body Part, Horn (Unicorn) Creature Body Par...
Part #: 89522 Flat Silver
Plate Special 1 x 2 with Angled Handles on Side Plate Special 1 x...
Part #: 92692 Black
Tile Round 1 x 1 Tile Round 1 x 1
Part #: 98138 Bright Pink
Tile Round 1 x 1 Tile Round 1 x 1
Part #: 98138 Trans-Bright Green
Tile Round 1 x 1 Tile Round 1 x 1
Part #: 98138 Black
Tile Round 1 x 1 with Black Animal Eye print Tile Round 1 x 1 ...
Part #: 98138pr0364 Yellow
Tile Round 1 x 1 with Black Hourglass print Tile Round 1 x 1 ...
Part #: 98138pr0365 White
Arm Mechanical with Clip [Thick Support] Arm Mechanical wi...
Part #: 98313 Pearl Titanium
Bracket 1 x 2 - 2 x 2 Inverted Bracket 1 x 2 - 2...
Part #: 99207 Dark Bluish Gray
Bracket 1 x 2 - 1 x 2 Bracket 1 x 2 - 1...
Part #: 99781 Light Bluish Gray
The set features a variety of black, dark bluish gray, and magenta pieces, offering a good selection for builders looking to expand their collection of these colors. The inclusion of multiple animal body parts in yellowish green and magenta is particularly useful for MOC builders creating creatures.

🛒 Where to Buy

💎 Notable Parts

Yellowish Green Animal Body Part, Barb / Claw / Tooth / Talon / Horn, Medium (10x) $1.50
Pearl Titanium Arm Mechanical with Clip [Thick Support] (6x) $1.80
Magenta Animal Body Part, Barb / Claw / Tooth / Talon / Horn, Large (4x) $1.20
Est. BrickLink Part Value
$4.50

💡 MOC Potential

🤖 Cyberpunk mech with insectoid features
🧙 Magical creature or familiar
🌳 Alien plant or creature from another world

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📖 Building Instructions 3

Grimkeeper the Cage Monster Instructions
BI 3101, 100+4, 71455 V29
Download PDF
Grimkeeper the Cage Monster Instructions
BI 3101, 100+4, 71455 V39
Download PDF
Grimkeeper the Cage Monster Instructions
BI 3101, 100+4, 71455 V29
Download PDF

Charts Inventory Statistics

92
Unique Parts
255
Total Pieces
2
Minifigures
Inventory Version: 1