LEGO 21137 The Mountain Cave is a Minecraft set valued at $1,583 for new and sealed sets, up 533% from an original retail price of $249.99. The set retired in December 2018 with annual appreciation averaging 14.44% since. On the used market, values range from $642 to $813 based on condition. Secondary market prices for new and sealed sets typically fall between $1,437 and $2,115. Lately the market for the set holds steady, balancing recent value easing against member interest that remains strong.

The Mountain Cave Value (New/Sealed)

This chart represents the current new/sealed value of the set The Mountain Cave since December 2018. Very high accuracy
LEGO 21137 The Mountain Cave is a Minecraft Minifig-scale set released in 2017, containing 2863 pieces and 6 minifigures. It depicts a multi-level mountainside with a modular layout and a minecart track featuring an elevator, TNT explosion, a rotatable spider spawner, a Creeper explosion, and lava elements. A light brick is included to illuminate details such as the spawner, redstone wall, pumpkin lantern, furnace, and the mine entrance torch. The set includes Steve and Alex along with a range of mobs, including a cave spider, wolf and baby wolf, slime with two small slimes, two bats, a zombie, an Enderman, a skeleton, a sheep, and a charged Creeper.

A sealed The Mountain Cave is worth about $1,583. It has grown by roughly 14.4% a year since retiring, and our forecast adds another 7% or so next year. The average used price is $677 for those in good overall condition. New and sealed listings currently range from $1,966 to $2,250. The set was available for 17 months, from July 2017 to December 2018.

For Sale (New/Sealed)

(US) Factory Sealed LEGO Minecraft: The Mountain Cave (21137) Retired 2017 Set
BrickEconomy Choice
$1,849.99
(US) The Mountain Cave from BrickLink seller JacksonWagner $1,350.00
-14.7%
(DE) The Mountain Cave from BrickLink seller vbih $1,504.27
-5.0%
(BE) The Mountain Cave from BrickLink seller Nicli $1,574.88
-0.5%
(NL) The Mountain Cave from BrickLink seller wolte019 $1,681.28
+6.2%
(US) Minecraft: The Mountain Cave (21137) - factory sealed, retired, genuine $1,899.00
+20.0%
(US) Minecraft The Mountain Cave 21137. Sealed, Retired. $1,999.00
+26.3%
(KR) 21137 The Mountain Cave/Retired Minecraft Set/Factory Sealed $2,100.00
+32.7%
(KR) 21137 Minecraft The Mountain Cave Very Rare $2,199.99
+39.0%
(US) Minecraft The Mountain Cave 21137 Sealed Retired set Brand New $2,250.00
+42.2%
(KR) 21137 Minecraft The Mountain Cave 2863pcs Factory-Sealed $2,255.99
+42.5%
(IT) Minecraft 21137 The Mountain Cave Set 2863 Pieces 12+ Box $2,573.01
+62.6%
Picked for your region

Sales Distribution (Last 90 Days)

This chart shows the distribution of sales for the past three months of new/sealed 21137 The Mountain Cave.

Sale Trends

This chart shows the sales trends of new/sealed 21137 The Mountain Cave.

Market Momentum

Neutral
21137 The Mountain Cave has eased over the last three months, as its growth has lagged behind similar retired Minecraft Minifigscale sets. Member interest remains very high and steady, keeping it among the most followed sets in the theme.
DemandTop 2% in Minecraft
Very high demand and rising
12 months agoToday
SupplyTypical for Minecraft
Listings down 33% this month
12 months agoToday
Growth vs peers+7% typical for Minifigscale
-15% over the past year
12 months agoToday
Outlook:43% bearish·24% neutral·33% bullish
Why it's moving, signals and outlook

Compared with other Minifig-scale sets

The market holds fewer copies of The Mountain Cave than of most sets ranked lower. That alone goes a long way to explain why it heads the Minifig-scale sets.

#1 of 94
By growth since retail, +533%
+0%+533%
The best performer in the group.
$0.55 a piece
New and sealed value per piece
This set
$0.55
Typical
$0.18
About 3 times the group's typical value per piece.
#36 of 69
Used value as a share of new, 43%
25%75%
In the bottom half of the group.
#1 of 102 retired
Wanted for each member who owns it
This set
Typical
About 6 times the rate of the group's retired sets.
Top sets by growthSince retail
121137 The Mountain Cave+533%
221163 The Redstone Battle+454%
321132 Jungle Temple+403%

Sets in Minecraft / Minifig-scale

21136 The Ocean Monument

Theme / Subtheme Minecraft / Minifig-scale
Year 2017
Pieces / Minifigs 1,122 / 2
Availability Retired
21136 LEGO Minecraft The Ocean Monument
Retail $119.99
Value $297.09
Growth  +147.6%
Annual growth 12.7%

21134 The Waterfall Base

Theme / Subtheme Minecraft / Minifig-scale
Year 2017
Pieces / Minifigs 729 / 4
Availability Retired
21134 LEGO Minecraft The Waterfall Base
Retail $69.99
Value $128.40
Growth  +83.5%
Annual growth 8.7%

21135 The Crafting Box 2

Theme / Subtheme Minecraft / Minifig-scale
Year 2017
Pieces / Minifigs 717 / 2
Availability Retired
21135 LEGO Minecraft The Crafting Box 2
Retail $59.99
Value $98.57
Growth  +64.3%
Annual growth 7.4%

21132 Jungle Temple

Theme / Subtheme Minecraft / Minifig-scale
Year 2017
Pieces / Minifigs 598 / 3
Availability Retired
21132 LEGO Minecraft Jungle Temple
Retail $49.99
Value $251.69
Growth  +403.5%
Annual growth 11.3%

21133 The Witch Hut

Theme / Subtheme Minecraft / Minifig-scale
Year 2017
Pieces / Minifigs 502 / 2
Availability Retired
21133 LEGO Minecraft The Witch Hut
Retail $59.99
Value $241.19
Growth  +302.1%
Annual growth 10.3%

21131 The Ice Spikes

Theme / Subtheme Minecraft / Minifig-scale
Year 2017
Pieces / Minifigs 454 / 2
Availability Retired
21131 LEGO Minecraft The Ice Spikes
Retail $39.99
Value $145.49
Growth  +263.8%
Annual growth 8.0%

21130 The Nether Railway

Theme / Subtheme Minecraft / Minifig-scale
Year 2017
Pieces / Minifigs 387 / 2
Availability Retired
21130 LEGO Minecraft The Nether Railway
Retail $29.99
Value $87.97
Growth  +193.3%
Annual growth 6.9%

21129 The Mushroom Island

Theme / Subtheme Minecraft / Minifig-scale
Year 2017
Pieces / Minifigs 247 / 2
Availability Retired
21129 LEGO Minecraft The Mushroom Island
Retail $19.99
Value $40.00
Growth  +100.1%
Annual growth 8.9%

The Mountain Cave Questions

How much is LEGO 21137 The Mountain Cave worth today?

Today's value for a new, sealed copy of The Mountain Cave is $1,583. Sealed copies typically change hands for $1,437 to $2,115. Its value has eased 11% over the last 90 days. On the used market, expect to pay around $677.

Has LEGO 21137 The Mountain Cave been retired?

Yes. The Mountain Cave retired in December 2018, having been in production for 17 months, 5 months shorter than the typical Minifig-scale set. Collectors now buy it on the secondary market, from sellers on sites like eBay and BrickLink.

How much has LEGO 21137 The Mountain Cave gone up in value?

Since it sold for $249.99 in shops, The Mountain Cave has risen 533% in value, or roughly 14.4% a year on average. It has outgrown the Minifig-scale average of 6.8% a year by a clear margin.

What will LEGO 21137 The Mountain Cave be worth next year?

BrickEconomy's forecast puts The Mountain Cave near $1,689 in twelve months, about 7% more than today. In the short term the market reads neutral. Demand, supply and price signals are mixed or quiet. This is an estimate and markets can change.

What comes in LEGO 21137 The Mountain Cave?

The Mountain Cave has 2,863 pieces ($0.09 a piece at its retail price), and 6 minifigures: Alex, Charged Creeper, Enderman, Skeleton, Steve and Zombie. Their combined value is about $88. Zombie is the most valuable at $22. Four of them are exclusive to this set.

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The mine comprises a spectacular rails circuit with an integrated elevator actuated by the red stone, and various other features and functions, including an explosion in TNT, a rotatable spider generator, an explosion of creeper ™ loaded and lava.

The light brick illuminates the spiders generator, the red stone wall, pumpkin lantern, shelter the first night, the furnace, lava or torch above the entrance to the mine.

This LEGO® Minecraft scalable and easy-to convert is designed for young fans of the video game type sandbox. Includes figures of Steve and Alex, thirteen more creatures including a Creeper ™ loaded.

Includes two figures: Steve and Alex , plus a spider of the mine, a wolf, baby wolf, slime, two little slimes, two bats, a zombie, a Enderman, a skeleton, a sheep and a Creeper ™ charged.
Description provided by LEGO©