Coming in at 2,863 pieces, the The Mountain Cave (21137) is a substantial set with a lot going on from the Minecraft lineup. It debuted in 2017 at $249.99. It comes packed with 6 minifigs — always a nice bonus for collectors.
At $0.087 per piece, the value here is reasonable — right in line with what you'd expect from Minecraft.
Being a LEGO exclusive means this one's trickier to find at discount, but the limited distribution usually pays off for collectors down the road.
Key Features
2,863 pieces — Big enough to be impressive, packed with interesting techniques
6 minifigures — Solid roster of characters for play and display
LEGO Exclusive — Only available through LEGO channels, adding scarcity value
$0.087 per piece — Strong price-per-piece for this theme
Minifig-scale collection — Sought-after corner of the Minecraft lineup
2017 release — Part of LEGO's modern era with strong design standards
Theme Background
LEGO's Minecraft theme is a theme with its own loyal following, and the The Mountain Cave is a 2017 release that lands in the core of the Minecraft catalog at $249.99. At $0.087 per piece, it punches above its weight on value.
Within Minecraft, the Minifig-scale sets have carved out their own niche. If you're tracking Minecraft for investment or just collecting, the Minifig-scale releases are usually among the more interesting ones to watch.
Why This Set Is Special
Largest set in Minecraft. At 2,863 pieces, this is the single largest set in the entire Minecraft theme.
#1 most-wanted in Minecraft — With 2,198 collectors wanting this set, it ranks #1 out of 135 Minecraft sets by demand — top 0.7%.
482% above retail — Now trading at $1,454.96, up 482% from $249.99 RRP — a 28% annualized return over 7.2 years since retirement.
Flagship Minecraft set — At $249.99, this is the highest-priced set in the Minecraft theme — flagship sets tend to be the strongest appreciators.
Demand outpaces supply — The want-to-own ratio is 2.2x — 2,198 want it vs 1,011 who own it, suggesting strong unmet demand.
Frequently Asked Questions
[{"q": "How many pieces are in the LEGO The Mountain Cave (21137)?", "a": "The LEGO The Mountain Cave (21137) contains 2,863 pieces, making it a large-scale display set. This places it in the top 128 largest LEGO sets by piece count out of over 9,289 sets. This is a build that will keep you engaged for several hours, with plenty of intricate details and techniques to enjoy."}, {"q": "What minifigures come with the LEGO The Mountain Cave (21137)?", "a": "The LEGO The Mountain Cave (21137) includes a solid complement of 6 minifigures. Minifigures are a key value driver for LEGO sets \u2014 exclusive or rare minifigures can appreciate significantly in value on their own, sometimes commanding high prices on the secondary market. With 6 figures included, this set provides strong collectible value beyond the build itself."}, {"q": "How much does the LEGO The Mountain Cave (21137) cost?", "a": "The retail price (MSRP) for the LEGO The Mountain Cave (21137) is $249.99 in the United States. Regional pricing is \u00a3259.99 in the UK, CA$299.99 in Canada, \u20ac249.99 in Europe. This works out to $0.09 per piece. That places it in the top 25% of Minecraft sets for value \u2014 you get a lot of pieces for the price you pay. As a LEGO exclusive, this set is only available directly through LEGO stores and LEGO.com."}, {"q": "Is the LEGO The Mountain Cave (21137) a good investment?", "a": "The LEGO The Mountain Cave (21137) shows strong investment potential based on several factors. Key investment signals include: high piece count, strong minifigure lineup, limited distribution as a LEGO exclusive, excellent price-per-piece value. Minecraft sets have historically been among the best-performing themes for post-retirement appreciation. As with any LEGO investment, buying at or below retail price maximizes potential returns. Use the BrickBucks price tracker to find the best entry point."}, {"q": "What age is the LEGO The Mountain Cave (21137) suitable for?", "a": "The LEGO The Mountain Cave (21137) is recommended for ages 12+. This strikes a nice balance between complexity and accessibility, suitable for older children and teens building with or without supervision."}, {"q": "How big is the LEGO The Mountain Cave (21137)?", "a": "The LEGO The Mountain Cave (21137) measures approximately 58.19cm \u00d7 48.00cm \u00d7 16.99cm (W\u00d7H\u00d7D) and weighs 5.08kg. This is a substantial display piece \u2014 make sure you have adequate shelf space before purchasing."}, {"q": "Is the LEGO The Mountain Cave (21137) still available?", "a": "The LEGO The Mountain Cave (21137) retired on December 31, 2018 and is no longer available at retail. You can find this set on secondary markets including Amazon, eBay, and BrickLink. Retired Minecraft sets often trade at a premium above their original retail price, with demand typically increasing over time as sealed inventory decreases."}, {"q": "Where can I buy the LEGO The Mountain Cave (21137)?", "a": "The LEGO The Mountain Cave (21137) is retired and only available on secondary markets. Check Amazon, eBay, and BrickLink for current listings. Use the BrickBucks price tracker to compare prices across retailers and find the best deal."}]
