The Mountain Cave

About The Mountain Cave

The Mountain Cave (21137-1) is a LEGO Minecraft set released in 2017, currently averaging $753.25 used on BrickLink. It comes with 6 minifigures worth a combined $44.10. The set has retired from retail, so secondary market is the only option. The full parts inventory runs 360 pieces.

Part-out value

The minifigures make up only 6% of this set's value ($44.10 out of $753.25). The bulk of the value is in the parts or the set being complete. Sell it as a complete set if possible.

Seller notes

• Sealed copies sell for $1622.23 vs $753.25 used — a 115% premium. If you have this set new in sealed box (NISB), price it accordingly.
• 6 minifigures at $44.10 combined value. That's a solid minifig haul — consider listing the figures individually on BrickLink where per-figure prices tend to be highest.

Minifigures in The Mountain Cave (6)

Enderman - Reddish Brown Block with Green Top

min049$5.65

Zombie - Pearl Gold Legs and Helmet

min050$11.58

Alex - Medium Azure Legs, Helmet and Armor

min051$5.62

Creeper, Charged Creeper

min052$10.40

Steve (Light Nougat) - Flat Silver Legs, Helmet and Armor

min053$4.87

Skeleton, Minecraft - Pearl Gold Armor

min054$5.98

Parts (360)

Plate, Modified 2 x 2 with Pin Hole - Full Cross Support Underneath

Plate, Modified 2 x 2 with Pin Hole - Full Cross Support Underneath

Tile, Modified 2 x 2 Inverted

×3

Brick, Modified 1 x 2 with Studs on 1 Side

×3

Plate, Modified 1 x 2 with Clip on Side (Horizontal Grip)

×2

Brick 1 x 1 x 3

Tile, Round 2 x 2 with Bottom Stud Holder

Fence 1 x 4 x 2 Spindled with 4 Studs

×2

Technic, Pin Connector 3L with 2 Pins and Center Hole

×3

Brick, Modified 1 x 4 with Masonry Profile

×12

Tile, Round 2 x 2 with Hole

×2

Tile, Round 2 x 2 with Hole

×4

Plate, Modified 1 x 2 with 1 Stud with Groove and Bottom Stud Holder (Jumper)

×4

Plate, Modified 1 x 2 with 1 Stud with Groove and Bottom Stud Holder (Jumper)

×68

Tile, Modified 1 x 1 with Open O Clip

×4

Tile, Modified 1 x 1 with Open O Clip

×2

Bracket 3 x 2 x 1 1/3 with Bottom Tube

×3

Plate, Modified 1 x 2 with Pin Hole on Bottom

×22

Minifigure, Weapon Sword Pixelated (Minecraft)

Minifigure, Utensil Axe, Pixelated (Minecraft)

Minifigure, Utensil Pickaxe Pixelated (Minecraft)

Minifigure, Utensil Shovel Pixelated (Minecraft)

Minifigure, Weapon Bow, Pixelated with Arrow Drawn (Minecraft)

Minifigure, Utensil Scissors

×2

Technic, Gear 16 Tooth with Clutch on Both Sides

Creature Head Pixelated with Black and White Eyes, Bright Pink Nose, Tan Face with Dark Tan Outline on White Background Pattern (Minecraft Sheep)

Creature Head Pixelated with Black, Red and Dark Red Face Pattern (Minecraft Spider)

Minifigure, Head, Modified Cube

Minifigure, Head, Modified Cube with Pixelated Dark Brown and Reddish Brown Eyes and Mouth Pattern (Minecraft Pumpkin Jack O' Lantern / Snow Golem)

Minifigure, Head, Modified Cube with Pixelated Black and Dark Green Eyes and Open Mouth Frown Pattern (Minecraft Creeper)

Minifigure, Head, Modified Cube with Pixelated Dark Green Eyes and Mouth Pattern (Minecraft Slime)

×2

Creature Head Pixelated with Snout with Red and Dark Red Eyes Small, Light Nougat Muzzle Pattern (Minecraft Angry Wolf)

×2

Technic, Axle and Pin Connector Hub with 1L Axle

×7

Slide Spiral Pole 32L

×2

Minifigure, Utensil Spiral Pole Attachment with 2 Bent Handles and 3 Inside Ridges

Bar Holder with Handle

Brick 2 x 2 Corner

×28

Brick 2 x 2 Corner

Plate 2 x 2 Corner

×2

Plate 2 x 2 Corner

×49

Hinge Plate 1 x 4 Swivel (2429 / 2430)

×4

Tile 1 x 4

×2

Tile 1 x 4

×2

Tile 1 x 4

×6

Bracket 1 x 2 - 1 x 4 with Rounded Corners

Brick 2 x 6

×56

Brick 2 x 6

×10

Brick, Modified 1 x 2 with Pin

×24

Brick 1 x 16

×10

Plate, Modified 2 x 6 with Pole Holder Pin

Plate, Round 1 x 1 with Bar Handle on Short Stem

×2

Plate, Modified 2 x 4 with Pin Holes

×2

Tile 2 x 3 with Black Minecraft Arrow and Dark Brown Squares and Lines Pattern

×2

Tile 2 x 3 with Reddish Brown and Silver Squares on Dark Brown Background Pattern (Minecraft Shield)

Technic, Brick 1 x 10 with Holes

Tile, Round Corner 4 x 4 Macaroni

×5

Technic, Pin with Short Friction Ridges

×130

Tile, Round Corner 2 x 2 Macaroni

×9

Wedge, Plate 2 x 2 Pentagonal with Center Stud and 1 x 1/2 Raised Tab on Top

×42

Plate, Modified 2 x 2 with Pin Holes

×7

Brick, Modified 1 x 1 with Bar Handle

×24

Brick 2 x 4

×2

Brick 2 x 4

×6

Brick 2 x 4

×6

Brick 2 x 4

×114

Brick 2 x 4

×23

Brick 2 x 4

×3

Brick 2 x 3

×2

Brick 2 x 3

×5

Brick 2 x 2

×3

Brick 2 x 2

×4

Brick 2 x 2

Brick 2 x 2

×29

Brick 2 x 2

×8

Brick 2 x 2

×9

Brick 2 x 2

×127

Brick 2 x 2

×27

Brick 2 x 2

×26

Brick 2 x 2 with Pixelated Black Coal and Light Bluish Gray Ash Pattern (Minecraft Furnace)

Brick 2 x 2 with Large Dark Green Square Pattern (Minecraft Slime)

×2

Brick 1 x 2

×2

Brick 1 x 2

×9

Brick 1 x 2

×14

Brick 1 x 2

×2

Brick 1 x 2

×62

Brick 1 x 2

×5

Brick 1 x 2 with Black 'TNT' Pixelated Pattern

×4

Brick 1 x 2 with Reddish Brown and Dark Brown Minecraft Crafting Table Lines Pattern

×2

Brick 1 x 1

×6

Brick 1 x 1

×4

Brick 1 x 1

×12

Brick 1 x 1

×22

Brick 2 x 10

×11

Brick 1 x 8

Brick 1 x 8

Brick 1 x 6

×35

Brick 1 x 4

Brick 1 x 4

×61

Brick 1 x 4

×8

Brick 2 x 2 x 3

×2

Plate 2 x 4

×5

Plate 2 x 4

×2

Plate 2 x 4

×4

Plate 2 x 4

×4

Plate 2 x 4

×2

Plate 2 x 4

×2

Plate 2 x 4

Plate 2 x 4

×18

Plate 2 x 4

×3

Plate 2 x 4

×6

Plate 2 x 3

Plate 2 x 2

×3

Plate 2 x 2

×2

Plate 2 x 2

×4

Plate 2 x 2

×3

Plate 2 x 2

×2

Plate 2 x 2

Plate 2 x 2

×18

Plate 2 x 2

×22

Plate 2 x 2

×16

Plate 2 x 2

×6

Plate 1 x 2

Plate 1 x 2

×3

Plate 1 x 2

×2

Plate 1 x 2

×2

Plate 1 x 2

×4

Plate 1 x 2

×15

Plate 1 x 2

×14

Plate 1 x 2

×9

Plate 1 x 2

Brick, Modified 1 x 2 with Open O Clip Thick (Vertical Grip)

×11

Brick, Modified 1 x 2 with Open O Clip Thick (Vertical Grip)

×6

Plate 1 x 1

Plate 1 x 1

×10

Plate 1 x 1

×10

Plate 1 x 1

×42

Plate 1 x 1

×2

Plate 1 x 1

×10

Plate 1 x 1 with Red, Dark Red and Black Squares Pattern (Minecraft Spider)

×2

Plate 1 x 1 with White and Black Squares and Black Line Pattern (Minecraft Bat Eyes and Mouth)

×3

Plate 6 x 12

Plate 4 x 12

Plate 4 x 10

Plate 4 x 10

Plate 4 x 4

Plate 4 x 4

Plate 4 x 4

×2

Plate 4 x 6

Plate 4 x 6

×2

Plate 2 x 8

Plate 2 x 8

Plate 4 x 8

Plate 4 x 8

×2

Slope 45 2 x 2

×16

Slope 45 2 x 2

×18

Brick, Modified 1 x 4 with Studs on Side

Brick, Modified 1 x 2 with Pins

×5

Brick 1 x 2 without Bottom Tube

×4

Brick 1 x 2 without Bottom Tube

Brick 1 x 2 without Bottom Tube

×3

Tile 2 x 2

×2

Tile 2 x 2

×4

Tile 2 x 2

Tile 2 x 2

×4

Tile 2 x 2 with Dark Brown Minecraft Crafting Table Grid Pattern

Tile 2 x 2 with Pixelated Blue, Green and White on Tan Background Pattern (Minecraft Map)

Tile 1 x 2

×2

Tile 1 x 2

×2

Tile 1 x 2

×4

Tile 1 x 2

×4

Tile 1 x 2

×2

Tile 1 x 2

×6

Tile 1 x 2

×2

Tile 1 x 2

Tile 1 x 2

×9

Tile 1 x 2

×2

Tile 1 x 2

×2

Tile 1 x 1

Tile 1 x 1

×3

Tile 1 x 1

×2

Technic, Brick 1 x 2 with Holes

×2

Technic, Brick 1 x 2 with Holes

Technic, Pin 3/4

×3

Technic, Axle and Pin Connector Angled #6 - 90 degrees

×2

Technic, Brick 1 x 14 with Holes

×5

Plate, Modified 1 x 2 with Door Rail

×3

Technic, Pin 3L with Friction Ridges and Stop Bush

×15

Technic, Axle 2L Notched

×3

Technic, Brick 1 x 2 with Axle Hole

×3

Technic, Brick 1 x 2 with Axle Hole

×3

Technic, Brick 1 x 2 with Axle Hole

×3

Technic, Brick 1 x 2 with Axle Hole

Technic, Brick 1 x 2 with Axle Hole

×6

Technic, Liftarm, Modified Bent Thick L-Shape 2 x 4

×2

Technic, Axle 5.5L with Stop

Technic, Liftarm Thick 1 x 15

×3

Technic, Liftarm Thick 1 x 15

×2

Technic, Liftarm Thick 1 x 15

×2

Technic, Liftarm Thick 1 x 5

×2

Technic, Liftarm Thick 1 x 5

×2

Brick 1 x 2 x 2 with Inside Stud Holder

×83

Technic, Liftarm Thick 1 x 3

×2

Technic, Liftarm Thick 1 x 7

Technic, Liftarm Thick 1 x 11

×6

Technic, Liftarm, Modified Bent Thick L-Shape 3 x 5

×5

Technic, Liftarm, Modified Bent Thick L-Shape 3 x 5

×3

Technic, Brick 4 x 6 Open Center

Technic, Brick 6 x 8 Open Center

×17

Apple

Plant Stem with Bar (Carrot Top / Twig)

×3

Plate, Round 1 x 1 with Flower Edge (4 Knobs / Petals)

×9

Plate, Round 1 x 1 with Flower Edge (4 Knobs / Petals)

×44

Plate, Round 1 x 1 with Flower Edge (4 Knobs / Petals)

×2

Plate 1 x 8

×2

Slope, Inverted 45 2 x 2 with Flat Bottom Pin

×3

Plate 1 x 6

×3

Plate 1 x 6

×7

Plate 1 x 6

Technic, Pin without Friction Ridges

×3

Technic, Brick 1 x 2 with Hole

×3

Technic, Brick 1 x 2 with Hole

×2

Technic, Brick 1 x 4 with Holes

×7

Technic, Brick 1 x 16 with Holes

×18

Technic, Axle 4L

×4

Technic, Axle 6L

×3

Technic, Plate 2 x 4 with 3 Holes

×3

Technic, Plate 2 x 4 with 3 Holes

×2

Plate 1 x 4

×21

Plate 1 x 4

×8

Technic, Plate 2 x 8 with 7 Holes

×2

Plate 2 x 6

×4

Plate 2 x 6

×3

Plate 2 x 6

×2

Plate 2 x 6

×8

Plate 2 x 6

×17

Plate 2 x 6

×7

Hinge Brick 1 x 4 Swivel Top

Hinge Brick 1 x 4 Swivel Base

Plate 2 x 10

Plate 2 x 10

×3

Plate 2 x 10

×3

Technic, Brick 1 x 6 with Holes

×2

Plate 6 x 6

×6

Plate 6 x 6

×2

Plate 6 x 6

Plate 6 x 6

×12

Plate 6 x 6

×41

Plate 6 x 6

×7

Plate, Round 2 x 2 with Axle Hole

Plate, Round 2 x 2 with Axle Hole

Plate, Round 2 x 2 with Axle Hole

×10

Plate, Round 2 x 2 with Axle Hole

Technic, Liftarm Thick 1 x 9

×5

Technic, Liftarm Thick 1 x 9

×4

Plate, Round 1 x 1

×5

Plate, Round 1 x 1

×7

Plate, Round 1 x 1

×13

Plate, Round 1 x 1

×39

Plate, Round 1 x 1

×6

Plate, Round 1 x 1

×10

Plate, Round 1 x 1

×3

Plate, Round 1 x 1

×5

Plate, Round 1 x 1

×7

Technic, Liftarm Thick 1 x 13

×3

Brick, Modified 1 x 2 with Channel

×2

Brick, Modified 1 x 2 with Channel

×4

Minifigure Neck Bracket with Back Stud - Thin Back Wall

×5

Technic, Pin 1/2 without Friction Ridges

×3

Technic, Pin 1/2 without Friction Ridges

×2

Technic, Axle 1L with Pin with Friction Ridges

×14

Bread / Baguette

Bracket 1 x 2 - 2 x 2

Bracket 1 x 2 - 2 x 2

×8

Cone 1 x 1 with Top Groove

×2

Windscreen 2 x 4 x 2 Vertical

Plate, Modified 1 x 2 with Bar Arm Up (Horizontal Arm 5mm)

Plant Flower 2 x 2 Leaves - Angular

×6

Container, Treasure Chest Bottom with Slots in Back

×2

Container, Treasure Chest Lid Curved with Thick Hinge

×2

Brick, Modified 1 x 1 with Studs on 2 Sides, Opposite

×2

Plate, Modified 1 x 2 with Bar Handle on Side - Closed Ends

×2

Panel 1 x 2 x 1 with Rounded Corners

×6

Panel 1 x 2 x 1 with Dark Green Square Off-Set Pattern (Minecraft Slime)

Slope 30 1 x 1 x 2/3

Slope 30 1 x 1 x 2/3

×3

Electric, Light Brick 2 x 3 x 1 1/3 with Trans-Red Top and Red LED Light

Panel 1 x 6 x 5

×2

Plate, Round 4 x 4 with Hole

Brick, Modified 1 x 1 with Open O Clip (Vertical Grip) - Hollow Stud

×2

Brick, Modified 1 x 1 with Clip (Horizontal Grip)

×16

Plate, Modified 1 x 2 with Bar Handle on End

Plate, Modified 1 x 2 with Bar Handle on End

×2

Plate 1 x 12

×2

Technic, Liftarm Thick 1 x 2 - Axle Hole

×2

Panel 1 x 4 x 3 with Side Supports - Hollow Studs

×4

Window 1 x 2 x 2 Flat Front

×2

Window 1 x 2 x 2 Flat Front

Brick 1 x 10

Brick 1 x 12

×7

Tile, Modified 4 x 6 with Studs on Edges

Bar 1 x 4 x 3 Grille with End Protrusions

Bar 1 x 4 x 3 Grille with End Protrusions

×8

Panel 1 x 1 x 1 Corner

×4

Brick, Modified 2 x 2 with Pin and Axle Hole

×6

Brick, Modified 2 x 2 with Pin and Axle Hole

×27

Brick, Modified 2 x 2 with Pin and Axle Hole

×2

Technic, Pin Connector Round 2L with Slot (Pin Joiner Round)

×7

Leg Skeleton

Plate, Modified 1 x 2 with Clip on End (Horizontal Grip)

×4

Minifigure, Utensil Telescope

×15

Plate, Modified 4 x 4 with 2 x 2 Open Center

×4

Plate, Modified 4 x 4 with 2 x 2 Open Center

×21

Technic, Pin 3L with Friction Ridges

×40

Technic, Axle 3L with Stud

Technic, Gear 12 Tooth Bevel

×2

Tile 1 x 6

×2

Tile 1 x 6

×46

Tile 1 x 6

×2

Tile 1 x 6

Plate, Modified 2 x 2 with Bar Frame Octagonal, Reinforced, Completely Round Studs

×3

Bracket 5 x 2 x 2 1/3 with 2 Holes and Bottom Stud Holder

×2

Plate, Round 1 x 1 with Open Stud

×2

Technic, Brick Modified 1 x 2 with Hole and Dual Liftarm Extensions

Slope 30 1 x 2 x 2/3

×4

Slope 30 1 x 2 x 2/3

Slope 30 1 x 2 x 2/3

×14

Tile 2 x 4

Tile 2 x 4

×5

Tile 2 x 4

×18

Technic, Axle 4L with Stop

×5

Brick, Modified 1 x 1 with Stud on Side

×2

Panel 1 x 2 x 3 with Side Supports - Hollow Studs

Panel 1 x 2 x 3 with Side Supports - Hollow Studs

×28

Plate, Modified 2 x 2 with Groove and 1 Stud in Center (Jumper)

×36

Plate, Modified 2 x 2 with Groove and 1 Stud in Center (Jumper)

×4

Plate, Modified 2 x 2 with Groove and 1 Stud in Center (Jumper)

Plate, Modified 2 x 2 with Groove and 1 Stud in Center (Jumper)

Plate, Modified 2 x 2 with Groove and 1 Stud in Center (Jumper)

×2

Plate, Modified 2 x 2 with Groove and 1 Stud in Center (Jumper)

×36

Plate, Modified 2 x 2 with Groove and 1 Stud in Center (Jumper)

×3

Plate, Modified 2 x 2 with Groove and 1 Stud in Center (Jumper)

Plate, Modified 2 x 2 with Groove and 1 Stud in Center (Jumper)

×94

Plate, Modified 2 x 2 with Groove and 1 Stud in Center (Jumper)

×41

Plate, Modified 2 x 2 with Groove and 1 Stud in Center (Jumper)

×11

Brick, Modified 1 x 2 x 5 with Channel

×6

Window 1 x 2 x 2 Castle

Panel 2 x 2 x 1 Corner

×4

Brick, Round 2 x 2 with Axle Hole and Grille / Fluted Profile

×2

Arm Skeleton, Bent with Clips at 90 degrees (Vertical Grip)

Bone, Short

×2

Technic, Gear 16 Tooth - Axle Hole with Closed Sides

Brick and Axle Separator

Tile, Round 1 x 1

×3

Tile, Round 1 x 1 with Yellow Square on Black and Blue Background Pattern (Minecraft Clock)

×2

Brick, Modified 1 x 2 with Masonry Profile

×3

Steak on Bone with Dark Red Meat on White T-Bone Pattern

Technic, Axle Connector Block Round with 2 Pin Holes and 3 Axle Holes (Hero Factory Weapon Barrel)

×2

Technic, Axle 4L with Center Stop

×2

Minifigure, Utensil Ingot 1 x 2

×6

Bracket 1 x 2 - 1 x 2

×2

Common questions about The Mountain Cave

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