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OVERWORLD · UNDERGROUND

Stronghold

Underground stone-brick labyrinths with libraries, corridors, and an End portal room. Players track them down with eyes of ender to reach the End, and loot books, gear, and Eye armor trim templates on the way.

No screenshot yetPlaceholder: we have not captured a stronghold in game.

From the Minecraft Wiki, summarised

How it generates

Usually buried underground, with no fixed Y range. Java can place them under oceans and fills in terrain to cover any exposed parts.

Biomes

  • Mushroom Fields
  • Deep Frozen Ocean
  • Frozen Ocean
  • Deep Cold Ocean
  • Cold Ocean
  • Deep Ocean
  • Ocean
  • Deep Lukewarm Ocean
  • Lukewarm Ocean
  • Warm Ocean
  • Stony Shore
  • Swamp
  • Mangrove Swamp
  • Snowy Slopes
  • Snowy Plains
  • Snowy Beach
  • Windswept Gravelly Hills
  • Grove
  • Windswept Hills
  • Snowy Taiga
  • Windswept Forest
  • Taiga
  • Plains
  • Meadow
  • Beach
  • Forest
  • Old Growth Spruce Taiga
  • Flower Forest
  • Birch Forest
  • Dark Forest
  • Pale Garden
  • Savanna Plateau
  • Savanna
  • Jungle
  • Badlands
  • Desert
  • Wooded Badlands
  • Jagged Peaks
  • Stony Peaks
  • Frozen River
  • River
  • Ice Spikes
  • Dappled Forest
  • Old Growth Pine Taiga
  • Sunflower Plains
  • Old Growth Birch Forest
  • Sparse Jungle
  • Bamboo Jungle
  • Eroded Badlands
  • Windswept Savanna
  • Cherry Grove
  • Frozen Peaks
  • Dripstone Caves
  • Lush Caves
  • Sulfur Caves
  • Deep Dark

Java places strongholds in rings instead of on the usual spacing grid: count 128, distance 32, spread 3, salt 0. That's why no spacing or separation is shown. There are eight rings around the world origin; the first holds three strongholds about 1,280–2,816 blocks out. Bedrock has no 128-stronghold limit and places some strongholds near villages. Since Bedrock 1.20.70, every stronghold has a portal room. Bedrock's added version (0.9.0) is the Pocket Edition release.

Notable loot

  • Eye Armor Trim Smithing Template
  • Enchanted Book
  • Ender Pearl
  • Diamond
  • Iron Ingot
  • Golden Apple
  • Copper Horse Armor
  • Books from library bookshelves

Mobs

  • Silverfish

History

  1. Beta 1.8Java

    Introduced strongholds, initially without functional End portals.

  2. 1.0.0Java

    Added functional End portals and eye-of-ender navigation.

  3. 1.9Java

    Expanded the world count from three strongholds to 128.

  4. 1.17Java

    Covered ocean strongholds with seabed terrain.

  5. 1.19.3Java

    Changed placement code, shifting stronghold positions for existing seeds.

  6. 1.20Java

    Added Eye armor trim templates, guaranteed in library chests.

  7. 1.20.70Bedrock

    Made an End portal room mandatory during stronghold generation.

  8. 1.21.4Java

    Made stronghold eligibility in the Pale Garden available outside experiments.

  9. 1.21.6Java

    Replaced saddle loot in altar chests with 1–5 leather.

  10. 1.21.9Java

    Added copper horse armor to altar chest loot.

Read the full article on the Minecraft Wiki ↗

SeedLookout in-game verification

Seeds with this stronghold

None of our verified seeds has a stronghold yet. The facts above come from the Minecraft Wiki and have not been checked in game by us.

Sources

The description, generation rules, variants, loot, mobs and history above are summarised from the Minecraft Wiki article Stronghold, retrieved 2026-09-30. Minecraft Wiki text is available under CC BY-NC-SA 3.0. We have not checked these facts in game.

Seed numbers, coordinates and screenshots come from SeedLookout's own in-game verification. About verified seeds