👁 This was a featured article from January 5, 2026 – January 11, 2026.

Stronghold

From Minecraft Wiki

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For the mission in Minecraft Dungeons, see MCD:The Stronghold.

Stronghold

👁 StrongholdPortalRoom.png: Infobox image for Minecraft structure 'Stronghold'

Biomes	Any Overworld biome
Mobs	👁 Image Silverfish (from monster spawner and infested blocks)
Generates in existing chunks	No
Consists of	See § Structure See § Blocks

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There is a related tutorial page for this topic!

See Tutorial:Defeating a stronghold.

A stronghold is a rare underground structure in the Overworld, and is the only place where an End portal can be found. Strongholds can be located by using an eye of ender.

Generation

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For locating strongholds, see Eye of Ender § Locating strongholds.

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The End portal room

Strongholds generate at any Y level, mostly underground, and prefer to generate in biomes above sea level, but generate underwater if necessary. Strongholds may generate at bedrock level, cutting the bedrock.

Most parts of the stronghold can be overwritten by caves, ocean monuments, ancient cities, mineshafts, fossils, amethyst geodes, trial chambers, and monster rooms; but it is rare for the End portal to be replaced, which would force a player to find one of the other strongholds, as a portal can be activated only with all 12 End portal frames present. Canyons do not overwrite strongholds; rather, a stronghold can occasionally be found exposed by a canyon.

Bedrock Edition

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In Bedrock Edition, strongholds generate randomly throughout the world and they are at least 160 blocks away from the world origin. There is no limit to the number of strongholds that can generate, unlike in Java Edition. There are 3 extra strongholds at least 453 blocks away from the world origin, which tend to be close to the 453-block boundary, and are guaranteed to generate below meeting points of a village. In rare cases, these 3 extra strongholds can be very far from the world origin, sometimes over 10,000 blocks away.

Java Edition

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Stronghold layout through the world in Java Edition

In Java Edition, all strongholds are located at random coordinates within rings in all biomes, where each ring is a certain radius from the center of the world (X=0, Z=0). For a given ring, the strongholds are generated at roughly equal angles from the center point of the world (for instance, each stronghold in a ring of 3 is in the region of 120 degrees from the others, measured from the origin). The game does not generate a stronghold partially above ground; any portion above the sea level is replaced with air, leaving a cutaway. If a stronghold generates in an ocean, which occurs rarely, it typically generates with terrain covered above it. Strongholds are biased towards biomes in the #stronghold_biased_to biome tag.^{[more information needed]}

There are eight rings, containing 128 strongholds in total:

The first ring has 3 strongholds within 1,280–2,816 blocks of the origin.
The second ring has 6 strongholds within 4,352–5,888 blocks of the origin.
The third ring has 10 strongholds within 7,424–8,960 blocks of the origin.
The fourth ring has 15 strongholds within 10,496–12,032 blocks of the origin.
The fifth ring has 21 strongholds within 13,568–15,104 blocks of the origin.
The sixth ring has 28 strongholds within 16,640–18,176 blocks of the origin.
The seventh ring has 36 strongholds within 19,712–21,248 blocks of the origin.
The eighth and outermost ring has 9 strongholds within 22,784–24,320 blocks of the origin.

The number of strongholds in each ring is the triangular number of the number one more than the ring number, except for the outermost ring, where 45 would be expected.

The outermost ring has the further unusual property of putting the strongholds at angles of roughly 36° (not the expected 40°) as if there were to be ten equally spaced strongholds, like in the third ring. One of these ten does not generate, however, keeping the number at nine.

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Structure

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Main article: /Structure

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An isometric view of a stronghold in a superflat world.^{[n 1]}

Stronghold generation starts with a spiral staircase room that leads down to a five-way intersection. From there, additional rooms are randomly generated. The layout can extend up to 50 rooms away from the original room and within a horizontal radius of 112 blocks.^{[more information needed]} If no portal room is generated during this process, the stronghold generation restarts.

Blocks

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The distribution of stone brick variants is roughly as follows:

👁 BlockSprite stone-bricks.png: Sprite image for stone-bricks in Minecraft
Stone Bricks: 45%
👁 BlockSprite mossy-stone-bricks.png: Sprite image for mossy-stone-bricks in Minecraft
Mossy Stone Bricks: 30%
👁 BlockSprite cracked-stone-bricks.png: Sprite image for cracked-stone-bricks in Minecraft
Cracked Stone Bricks: 20%
👁 BlockSprite infested-stone-bricks.png: Sprite image for infested-stone-bricks in Minecraft
Infested Stone Bricks: 5%

Infested cracked stone bricks and infested mossy stone bricks do not naturally generate; they only appear when silverfish infest these blocks.^[1]

Components

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Pieces
Name `id`	Description	Blocks	Image
Straight `minecraft:SHS`	This sub-structure consists of a corridor; it generates with an entrance and an exit on opposite sides, making it a 5 block long corridor. On each side, a side exit has a 50% chance to generate; if it does not, the corresponding side is sealed with a stone bricks wall. This sub-structure can also include up to 4 torches, each with a 10% chance to generate. They are placed hanging on the walls beside the potential side exits, regardless of whether the exits generate. The render on the side depicts the sub-structure with all the features generated.	94-112 👁 Image Stone Bricks^{[n 3]} 0-4 👁 Image Torch	👁 Image
Right turn `minecraft:SHRT`	These sub-structures are corridors with 90° turns. Both types have an equal chance of appearing.	80 👁 Image Stone Bricks^{[n 3]}	👁 Image
Left turn `minecraft:SHLT`		80 👁 Image Stone Bricks^{[n 3]}	👁 Image
Spiral staircase `minecraft:SHSD`	This sub-structure consists of a staircase, with its entrance at the top and its exit at the bottom. Between 0 and 5 spiral staircases can generate per stronghold, plus a starter staircase. When an eye of ender is thrown, it will fly towards chunk coordinates 0, ~, 0 of the chunk the start piece is in. The center of the starter staircase will always generate at chunk coordinates 4, ~, 4. The starter staircase will always generate with an opening as its entrance.	187 👁 Image Stone Bricks^{[n 3]} 6 👁 Image Smooth Stone Slab	👁 Image
Start piece `minecraft:SHStart`			👁 Image
Straight staircase `minecraft:SHSSD`	This sub-structure consists of a staircase, with its entrance at the top and its exit at the bottom. There is also an empty alcove under the stairs. Between 0 and 5 straight staircases can generate per stronghold.	275 👁 Image Stone Bricks^{[n 3]} 18 👁 Image Cobblestone stairs	👁 Image
Five-way crossing `minecraft:SH5C`	This room consists of a small atrium from which 2 to 6 paths can branch out: The first exit (1), located in front of the stairway, always generates, as it acts as the entrance to the room. The second exit (2), located down the stairway, always generates. The upper exit facing east or south (+x or +z) (4 or 5) has a ²⁄₃ chance to generate. The remaining three exits each have an independent ¹⁄₂ chance to generate. 👁 The layout of a five-way crossing The layout of a five-way crossing This room can branch out to hidden rooms. If the room is rotated such that the player faces west or north (-x or -z) when entering it, a hidden room may try to generate. Hidden rooms always attempt to generate directly adjacent to indentations on the same wall; the attempt can sometimes fail meaning no hidden room generates. 👁 The indentation (on the left, marked in green) indicates a hidden room attempted to generate behind the wall (on the right, marked in red). In other words, a hidden room can be found behind a smooth wall where an exit can generate. The indentation (on the left, marked in green) indicates a hidden room attempted to generate behind the wall (on the right, marked in red). In other words, a hidden room can be found behind a smooth wall where an exit can generate. Between 0 and 4 five-way crossings can generate per stronghold. In addition to these, an extra five-way crossing always generates as part of the starting point of the structure.	536-572 👁 Image Stone Bricks^{[n 3]} 36 👁 Image Smooth Stone Slab 1 👁 Image Torch	👁 Image
Prison hall `minecraft:SHPH`	This room consists of a corridor with two cells located on one of its sides. In Bedrock Edition, jail cells generate without iron doors.^{[n 4]} Between 0 and 5 prison halls can generate per stronghold.	300 👁 Image Stone Bricks^{[n 3]} 20 👁 Image Iron Bars 2 👁 Image Iron Door‌^{[JE only]}	👁 Image
Chest corridor `minecraft:SHCC`	This sub-structure consists in a chest on an altar in a corridor. Between 0 and 4 chest corridors can generate per stronghold.	115 👁 Image Stone Bricks^{[n 3]} 7 👁 Image Stone Brick Slab 1 👁 Image Chest^{[n 5]}	👁 Image
Room crossing `minecraft:SHRC`	This large room consists of a cross junction; four exits (including the entrance) always generate. Large rooms come in 4 variants: Empty: has no decoration. Fountain: has a fountain. Pillar: has a stone brick pillar with torches. Store: has 2 floors, each 2 blocks high, with a cobblestone center structure joining the two and a torch housed within the structure; a ladder runs up the side wall, providing access to the second floor, which is a chamber made of oak planks and that contains a loot chest. Between 0 and 6 large rooms, regardless of variants, can generate per stronghold.	406 👁 Image Stone Bricks^{[n 3]} (all) Fountain: 19 👁 Image Stone Bricks^{[n 6]} 1 👁 Image Water Pillar: 3 👁 Image Stone Bricks^{[n 6]} 8 👁 Image Smooth Stone Slab 4 👁 Image Torch Store: 51 👁 Image Cobblestone 40 👁 Image Oak Planks 3 👁 Image Ladder 1 👁 Image Chest^{[n 7]} 1 👁 Image Torch	👁 Image 👁 Image 👁 Image 👁 Image
Library `minecraft:SHLi`	Libraries come in 2 variants: Large: a duplex library containing 2 chests. Small: a single-level library containing 1 chest. Libraries generate in their small variant only when there isn't enough space for the large variant; otherwise, they always generate in their large variant. Each air block within 4 blocks above the ground (inclusive) has a 7% chance of being replaced by a cobweb upon generation. Between 0 and 2 libraries can generate per stronghold. Additionally, libraries can never generate within four rooms of the starting staircase.	Large: 895 👁 Image Stone Bricks^{[n 3]} 233 👁 Image Bookshelf 166 👁 Image Oak Planks 46 👁 Image Oak Fence 14 👁 Image Torch 7 👁 Image Ladder 2 👁 Image Chest^{[n 8]} 0-417 👁 Image Cobweb (avg.: 29) Small: 627 👁 Image Stone Bricks^{[n 3]} 161 👁 Image Bookshelf 32 👁 Image Oak Planks 8 👁 Image Torch 1 👁 Image Chest^{[n 8]} 0-422 👁 Image Cobweb (avg.: 29)	👁 Image 👁 Image
Portal room `minecraft:SHPR`	The End portal room is the only room guaranteed to generate in a stronghold. It never generates within five rooms of the starting staircase, although it is less likely to generate farther away. Unlike all other rooms in the stronghold, it always generates with a complete outer wall, making it the only room that is consistently fully formed after generation. Each portal frame has a 10% chance to generate containing an eye of ender; the average number of portal frames found prefilled is 1.2. The chance of the portal being completely pre-filled is one in a trillion (1:1,000,000,000,000 or 10^-12). Its entry door is always grates.	704 👁 Image Stone Bricks^{[n 3]} 39 👁 Image Iron Bars 15 👁 Image Lava 8 👁 Image Stone Brick Stairs 12 👁 Image End Portal Frame 1 👁 Image Monster Spawner	👁 Image

Small doors
Name	Description	Blocks	Image
Opening	Small doors are the separating sub-structures that generate at the entrance of various rooms of strongholds. There are 4 types of door: the empty opening, the grates of iron bars, the wood door and the iron door. They are generated randomly, with each having an equal chance of appearing, except for the empty opening which is twice as likely to occur. The start piece will always generate an opening, and the portal room will always generate grates. In order to prevent two doors from generating directly adjacent to each other, they are generated only as room entrances. Wood and iron doors always face the direction in which the stronghold generates: a door that is flush with the wall always leads away from the starting staircase, while a door that is indented into the wall leads toward it.	9 👁 Image Air	👁 Image
Grates		7 👁 Image Iron Bars	👁 Image
Wood door		7 👁 Image Stone Bricks^{[n 6]} 1 👁 Image Oak Door	👁 Image
Iron door		7 👁 Image Stone Bricks^{[n 6]} 1 👁 Image Iron Door 1 👁 Image Stone Button	👁 Image

Name
id Description Blocks Image

Filler corridor
minecraft:SHFC

Filler corridors, also known as dead-end corridors, are a special kind of sub-structure that generates when a normal room fails to generate, but the exit from where came the generation attempt is close enough to other parts of the stronghold. You can distinguish these from normal corridors by two details:

they are composed of only normal stone bricks: no mossy, nor cracked, nor infested.
their generation is always complete and cannot be overwritten by caves (like the portal room). This can result in them appearing like they are totally disconnected from the rest of the stronghold, if they are generated in caves.

They consist of a vertical one-block wide ring of stone bricks, the same size as a normal corridor. For them to generate, the game checks for, in order:

failed generation of rooms from exits;
other parts of the stronghold that are 4 blocks or less away horizontaly from the selected exit, and at the same y-level of the exit.

When these criteria are met, it generates up to 3 filler corridors sub-structures, stacked horizontaly on the same y-level, starting from the selected exit until it hits the other room's outer wall, in which in most cases makes a dent or an opening. In this way, the filler corridor is usually able to connects up near parts of the strongholds in order to form a denser network of passages.

Unlike every other stronghold room, these pieces do not generate doors.

16-48 👁 Image
Stone bricks

👁 Image	👁 Image	👁 Image	👁 Image	👁 Image
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👁 Image	👁 Image
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👁 Image	👁 Image	👁 Image	👁 Image	👁 Image

Loot

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Altars

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In Java Edition, each stronghold altar chest contains items drawn from 2 pools, with the following distribution:

Item	Stack Size ^[A]		Weight ^[B]		Chance ^[C]	Avg. per chest ^[D]	Avg. # chests to search ^[E]
Item	2–3×	1×	2–3×	1×	Chance ^[C]	Avg. per chest ^[D]	Avg. # chests to search ^[E]
👁 BlockSprite air.png: Sprite image for air in Minecraft Nothing^[F]	—	1	—	⁹⁄₁₀	90.0%	0.900	1.1
👁 Image Apple	1–3	—	¹⁵⁄₁₀₁	—	32.9%	0.743	3.0
👁 Image Bread	1–3	—	¹⁵⁄₁₀₁	—	32.9%	0.743	3.0
👁 Image Iron Ingot	1–5	—	¹⁰⁄₁₀₁	—	22.8%	0.743	4.4
👁 Image Ender Pearl	1	—	¹⁰⁄₁₀₁	—	22.8%	0.248	4.4
👁 Image Redstone Dust	4–9	—	⁵⁄₁₀₁	—	11.9%	0.804	8.4
👁 Image Gold Ingot	1–3	—	⁵⁄₁₀₁	—	11.9%	0.248	8.4
👁 Image Iron Pickaxe	1	—	⁵⁄₁₀₁	—	11.9%	0.124	8.4
👁 Image Iron Sword	1	—	⁵⁄₁₀₁	—	11.9%	0.124	8.4
👁 Image Iron Helmet	1	—	⁵⁄₁₀₁	—	11.9%	0.124	8.4
👁 Image Iron Chestplate	1	—	⁵⁄₁₀₁	—	11.9%	0.124	8.4
👁 Image Iron Leggings	1	—	⁵⁄₁₀₁	—	11.9%	0.124	8.4
👁 Image Iron Boots	1	—	⁵⁄₁₀₁	—	11.9%	0.124	8.4
👁 Image Eye Armor Trim Smithing Template	—	1	—	¹⁄₁₀	10.0%	0.100	10.0
👁 Image Diamond	1–3	—	³⁄₁₀₁	—	7.3%	0.149	13.8
👁 Image Leather	1–5	—	¹⁄₁₀₁	—	2.5%	0.074	40.7
👁 Image Copper Horse Armor	1	—	¹⁄₁₀₁	—	2.5%	0.025	40.7
👁 Image Music Disc (otherside)	1	—	¹⁄₁₀₁	—	2.5%	0.025	40.7
👁 Image Enchanted Book^[G]	1	—	¹⁄₁₀₁	—	2.5%	0.025	40.7
👁 Image Iron Horse Armor	1	—	¹⁄₁₀₁	—	2.5%	0.025	40.7
👁 Image Golden Apple	1	—	¹⁄₁₀₁	—	2.5%	0.025	40.7
👁 Image Golden Horse Armor	1	—	¹⁄₁₀₁	—	2.5%	0.025	40.7
👁 Image Diamond Horse Armor	1	—	¹⁄₁₀₁	—	2.5%	0.025	40.7

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"weights": [ "<sup>1</sup>&frasl;<sub>101</sub>", "—" ], "chanceany": 0.024556901332717374, "sizes": [ 1, "—" ], "sortweight": [ 1, 0 ], "armor": 0, "material": 4, "avgamount": 0.024752475247524754, "itemname": "diamond-horse-armor" }, "disc-otherside": { "sortsize": [ 1, 0 ], "weights": [ "<sup>1</sup>&frasl;<sub>101</sub>", "—" ], "chanceany": 0.024556901332717374, "sizes": [ 1, "—" ], "sortweight": [ 1, 0 ], "armor": 0, "material": 0, "avgamount": 0.024752475247524754, "itemname": "disc-otherside" }, "gold-ingot": { "itemname": "gold-ingot", "sizes": [ "1–3", "—" ], "sortsize": [ 2, 0 ], "sortweight": [ 5, 0 ], "weights": [ "<sup>5</sup>&frasl;<sub>101</sub>", "—" ], "avgamount": 0.24752475247524752, "chanceany": 0.1189215578748346 }, "iron-boots": { "sortsize": [ 1, 0 ], "weights": [ "<sup>5</sup>&frasl;<sub>101</sub>", "—" ], "chanceany": 0.1189215578748346, "sizes": [ 1, "—" ], "sortweight": [ 5, 0 ], "armor": 4, "material": 2, "avgamount": 0.12376237623762376, "itemname": "iron-boots" }, "iron-horse-armor": { "sortsize": [ 1, 0 ], "weights": [ "<sup>1</sup>&frasl;<sub>101</sub>", "—" ], "chanceany": 0.024556901332717374, "sizes": [ 1, "—" ], "sortweight": [ 1, 0 ], "armor": 0, "material": 2, "avgamount": 0.024752475247524754, "itemname": "iron-horse-armor" }, "iron-pickaxe": { "sortsize": [ 1, 0 ], "weights": [ "<sup>5</sup>&frasl;<sub>101</sub>", "—" ], "chanceany": 0.1189215578748346, "sizes": [ 1, "—" ], "sortweight": [ 5, 0 ], "armor": 0, "material": 2, "avgamount": 0.12376237623762376, "itemname": "iron-pickaxe" }, "apple": { "sortsize": [ 2, 0 ], "weights": [ "<sup>15</sup>&frasl;<sub>101</sub>", "—" ], "chanceany": 0.3288116773641878, "sizes": [ "1–3", "—" ], "sortweight": [ 15, 0 ], "armor": 0, "material": 0, "avgamount": 0.7425742574257426, "itemname": "apple" }, "iron-ingot": { "itemname": "iron-ingot", "sizes": [ "1–5", "—" ], "sortsize": [ 3, 0 ], "sortweight": [ 10, 0 ], "weights": [ "<sup>10</sup>&frasl;<sub>101</sub>", "—" ], "avgamount": 0.7425742574257426, "chanceany": 0.228404126561073 }, "enchanted-book": { "sortsize": [ 1, 0 ], "weights": [ "<sup>1</sup>&frasl;<sub>101</sub>", "—" ], "chanceany": 0.024556901332717374, "sizes": [ 1, "—" ], "sortweight": [ 1, 0 ], "armor": 0, "material": 0, "avgamount": 0.024752475247524754, "itemname": "enchanted-book" }, "diamond": { "itemname": "diamond", "sizes": [ "1–3", "—" ], "sortsize": [ 2, 0 ], "sortweight": [ 3, 0 ], "weights": [ "<sup>3</sup>&frasl;<sub>101</sub>", "—" ], "avgamount": 0.1485148514851485, "chanceany": 0.07250599582063888 }, "copper-horse-armor": { "sortsize": [ 1, 0 ], "weights": [ "<sup>1</sup>&frasl;<sub>101</sub>", "—" ], "chanceany": 0.024556901332717374, "sizes": [ 1, "—" ], "sortweight": [ 1, 0 ], "armor": 0, "material": 0, "avgamount": 0.024752475247524754, "itemname": "copper-horse-armor" }, "eye-armor-trim-smithing-template": { "itemname": "eye-armor-trim-smithing-template", "sizes": [ "—", 1 ], "sortsize": [ 0, 1 ], "sortweight": [ 0, 1 ], 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], "armor": 1, "material": 2, "avgamount": 0.12376237623762376, "itemname": "iron-helmet" }, "leather": { "itemname": "leather", "sizes": [ "1–5", "—" ], "sortsize": [ 3, 0 ], "sortweight": [ 1, 0 ], "weights": [ "<sup>1</sup>&frasl;<sub>101</sub>", "—" ], "avgamount": 0.07425742574257425, "chanceany": 0.024556901332717374 }, "ender-pearl": { "itemname": "ender-pearl", "sizes": [ 1, "—" ], "sortsize": [ 1, 0 ], "sortweight": [ 10, 0 ], "weights": [ "<sup>10</sup>&frasl;<sub>101</sub>", "—" ], "avgamount": 0.24752475247524752, "chanceany": 0.228404126561073 }, "iron-leggings": { "sortsize": [ 1, 0 ], "weights": [ "<sup>5</sup>&frasl;<sub>101</sub>", "—" ], "chanceany": 0.1189215578748346, "sizes": [ 1, "—" ], "sortweight": [ 5, 0 ], "armor": 3, "material": 2, "avgamount": 0.12376237623762376, "itemname": "iron-leggings" }, "redstone": { "itemname": "redstone", "sizes": [ "4–9", "—" ], "sortsize": [ 6.5, 0 ], "sortweight": [ 5, 0 ], "weights": [ "<sup>5</sup>&frasl;<sub>101</sub>", "—" ], "avgamount": 0.8044554455445545, "chanceany": 0.1189215578748346 }, "golden-horse-armor": { "sortsize": [ 1, 0 ], "weights": [ "<sup>1</sup>&frasl;<sub>101</sub>", "—" ], "chanceany": 0.024556901332717374, "sizes": [ 1, "—" ], "sortweight": [ 1, 0 ], "armor": 0, "material": 3, "avgamount": 0.024752475247524754, "itemname": "golden-horse-armor" }, "iron-chestplate": { "sortsize": [ 1, 0 ], "weights": [ "<sup>5</sup>&frasl;<sub>101</sub>", "—" ], "chanceany": 0.1189215578748346, "sizes": [ 1, "—" ], "sortweight": [ 5, 0 ], "armor": 2, "material": 2, "avgamount": 0.12376237623762376, "itemname": "iron-chestplate" }, "iron-sword": { "sortsize": [ 1, 0 ], "weights": [ "<sup>5</sup>&frasl;<sub>101</sub>", "—" ], "chanceany": 0.1189215578748346, "sizes": [ 1, "—" ], "sortweight": [ 5, 0 ], "armor": 0, "material": 2, "avgamount": 0.12376237623762376, "itemname": "iron-sword" } }, "superheader": "[[Stronghold]]", "poolsJavaUpcoming": [], "structure": "Stronghold", "container": "Altar chest", "itemDataJavaUpcoming": [], "allRollsJavaUpcoming": [], "itemDataBedrock": { "diamond-horse-armor": { "sortsize": [ 1, 0 ], "weights": [ "<sup>5</sup>&frasl;<sub>521</sub>", "—" ], "chanceany": 0.02380856230861328, "sizes": [ 1, "—" ], "sortweight": [ 5, 0 ], "armor": 0, "material": 4, "avgamount": 0.02399232245681382, "itemname": "diamond-horse-armor" }, "disc-otherside": { "sortsize": [ 1, 0 ], "weights": [ "<sup>5</sup>&frasl;<sub>521</sub>", "—" ], "chanceany": 0.02380856230861328, "sizes": [ 1, "—" ], "sortweight": [ 5, 0 ], "armor": 0, "material": 0, "avgamount": 0.02399232245681382, "itemname": "disc-otherside" }, "gold-ingot": { "itemname": "gold-ingot", "sizes": [ "1–3", "—" ], "sortsize": [ 2, 0 ], "sortweight": [ 25, 0 ], "weights": [ "<sup>25</sup>&frasl;<sub>521</sub>", "—" ], "avgamount": 0.2399232245681382, "chanceany": 0.11541180293889097 }, "iron-boots": { "sortsize": [ 1, 0 ], "weights": [ "<sup>25</sup>&frasl;<sub>521</sub>", "—" ], "chanceany": 0.11541180293889097, "sizes": [ 1, "—" ], "sortweight": [ 25, 0 ], "armor": 4, "material": 2, "avgamount": 0.1199616122840691, "itemname": "iron-boots" }, "iron-horse-armor": { "sortsize": [ 1, 0 ], "weights": [ "<sup>5</sup>&frasl;<sub>521</sub>", "—" ], "chanceany": 0.02380856230861328, "sizes": [ 1, "—" ], "sortweight": [ 5, 0 ], "armor": 0, "material": 2, "avgamount": 0.02399232245681382, "itemname": "iron-horse-armor" }, "iron-pickaxe": { "sortsize": [ 1, 0 ], "weights": [ "<sup>25</sup>&frasl;<sub>521</sub>", "—" ], "chanceany": 0.11541180293889097, "sizes": [ 1, "—" ], "sortweight": [ 25, 0 ], "armor": 0, "material": 2, "avgamount": 0.1199616122840691, "itemname": "iron-pickaxe" }, "apple": { "sortsize": [ 2, 0 ], "weights": [ "<sup>75</sup>&frasl;<sub>521</sub>", "—" ], "chanceany": 0.31993092584192784, "sizes": [ "1–3", "—" ], "sortweight": [ 75, 0 ], "armor": 0, "material": 0, "avgamount": 0.7197696737044146, "itemname": "apple" }, "iron-ingot": { "itemname": "iron-ingot", "sizes": [ "1–5", "—" ], "sortsize": [ 3, 0 ], "sortweight": [ 50, 0 ], "weights": [ "<sup>50</sup>&frasl;<sub>521</sub>", "—" ], "avgamount": 0.7197696737044146, "chanceany": 0.2219449589866087 }, "enchanted-book": { "itemname": "enchanted-book", "sizes": [ 1, "—" ], "sortsize": [ 1, 0 ], "sortweight": [ 6, 0 ], "weights": [ "<sup>6</sup>&frasl;<sub>521</sub>", "—" ], "avgamount": 0.028790786948176585, "chanceany": 0.02852629961452402 }, "diamond": { "sortsize": [ 2, 0 ], "weights": [ "<sup>15</sup>&frasl;<sub>521</sub>", "—" ], "chanceany": 0.07033108102140684, "sizes": [ "1–3", "—" ], "sortweight": [ 15, 0 ], "armor": 0, "material": 4, "avgamount": 0.14395393474088292, "itemname": "diamond" }, "copper-horse-armor": { "sortsize": [ 1, 0 ], "weights": [ "<sup>5</sup>&frasl;<sub>521</sub>", "—" ], "chanceany": 0.02380856230861328, "sizes": [ 1, "—" ], "sortweight": [ 5, 0 ], "armor": 0, "material": 0, "avgamount": 0.02399232245681382, "itemname": "copper-horse-armor" }, "eye-armor-trim-smithing-template": { "itemname": "eye-armor-trim-smithing-template", "sizes": [ "—", 1 ], "sortsize": [ 0, 1 ], "sortweight": [ 0, 1 ], "weights": [ "—", "<sup>1</sup>&frasl;<sub>10</sub>" ], "avgamount": 0.1, "chanceany": 0.09999999999999998 }, "empty": { "itemname": "empty", "sizes": [ "—", 1 ], "sortsize": [ 0, 1 ], "sortweight": [ 0, 9 ], "weights": [ "—", "<sup>9</sup>&frasl;<sub>10</sub>" ], "avgamount": 0.9, "chanceany": 0.9 }, "bread": { "sortsize": [ 2, 0 ], "weights": [ "<sup>75</sup>&frasl;<sub>521</sub>", "—" ], "chanceany": 0.31993092584192784, "sizes": [ "1–3", "—" ], "sortweight": [ 75, 0 ], "armor": 0, "material": 0, "avgamount": 0.7197696737044146, "itemname": "bread" }, "golden-apple": { "sortsize": [ 1, 0 ], "weights": [ "<sup>5</sup>&frasl;<sub>521</sub>", "—" ], "chanceany": 0.02380856230861328, "sizes": [ 1, "—" ], "sortweight": [ 5, 0 ], "armor": 0, "material": 3, "avgamount": 0.02399232245681382, "itemname": "golden-apple" }, "iron-leggings": { "sortsize": [ 1, 0 ], "weights": [ "<sup>25</sup>&frasl;<sub>521</sub>", "—" ], "chanceany": 0.11541180293889097, "sizes": [ 1, "—" ], "sortweight": [ 25, 0 ], "armor": 3, "material": 2, "avgamount": 0.1199616122840691, "itemname": "iron-leggings" }, "leather": { "itemname": "leather", "sizes": [ "1–5", "—" ], "sortsize": [ 3, 0 ], "sortweight": [ 5, 0 ], "weights": [ "<sup>5</sup>&frasl;<sub>521</sub>", "—" ], "avgamount": 0.07197696737044146, "chanceany": 0.02380856230861328 }, "emerald": { "sortsize": [ 2, 0 ], "weights": [ "<sup>15</sup>&frasl;<sub>521</sub>", "—" ], "chanceany": 0.07033108102140684, "sizes": [ "1–3", "—" ], "sortweight": [ 15, 0 ], "armor": 0, "material": 0, "avgamount": 0.14395393474088292, "itemname": "emerald" }, "ender-pearl": { "itemname": "ender-pearl", "sizes": [ 1, "—" ], "sortsize": [ 1, 0 ], "sortweight": [ 50, 0 ], "weights": [ "<sup>50</sup>&frasl;<sub>521</sub>", "—" ], "avgamount": 0.2399232245681382, "chanceany": 0.2219449589866087 }, "iron-helmet": { "sortsize": [ 1, 0 ], "weights": [ "<sup>25</sup>&frasl;<sub>521</sub>", "—" ], "chanceany": 0.11541180293889097, "sizes": [ 1, "—" ], "sortweight": [ 25, 0 ], "armor": 1, "material": 2, "avgamount": 0.1199616122840691, "itemname": "iron-helmet" }, "redstone": { "itemname": "redstone", "sizes": [ "4–9", "—" ], "sortsize": [ 6.5, 0 ], "sortweight": [ 25, 0 ], "weights": [ "<sup>25</sup>&frasl;<sub>521</sub>", "—" ], "avgamount": 0.7797504798464492, "chanceany": 0.11541180293889097 }, "golden-horse-armor": { "sortsize": [ 1, 0 ], "weights": [ "<sup>5</sup>&frasl;<sub>521</sub>", "—" ], "chanceany": 0.02380856230861328, "sizes": [ 1, "—" ], "sortweight": [ 5, 0 ], "armor": 0, "material": 3, "avgamount": 0.02399232245681382, "itemname": "golden-horse-armor" }, "iron-chestplate": { "sortsize": [ 1, 0 ], "weights": [ "<sup>25</sup>&frasl;<sub>521</sub>", "—" ], "chanceany": 0.11541180293889097, "sizes": [ 1, "—" ], "sortweight": [ 25, 0 ], "armor": 2, "material": 2, "avgamount": 0.1199616122840691, "itemname": "iron-chestplate" }, "iron-sword": { "sortsize": [ 1, 0 ], "weights": [ "<sup>25</sup>&frasl;<sub>521</sub>", "—" ], "chanceany": 0.11541180293889097, "sizes": [ 1, "—" ], "sortweight": [ 25, 0 ], "armor": 0, "material": 2, "avgamount": 0.1199616122840691, "itemname": "iron-sword" } }, "poolsBedrock": [ { "items": { "diamond-horse-armor": [ 1, 1, 5 ], "disc-otherside": [ 1, 1, 5 ], "gold-ingot": [ 1, 3, 25 ], "iron-boots": [ 1, 1, 25 ], "iron-horse-armor": [ 1, 1, 5 ], "iron-pickaxe": [ 1, 1, 25 ], "apple": [ 1, 3, 75 ], "iron-ingot": [ 1, 5, 50 ], "enchanted-book": [ 1, 1, 6 ], "diamond": [ 1, 3, 15 ], "copper-horse-armor": [ 1, 1, 5 ], "golden-horse-armor": [ 1, 1, 5 ], "golden-apple": [ 1, 1, 5 ], "leather": [ 1, 5, 5 ], "iron-sword": [ 1, 1, 25 ], "iron-leggings": [ 1, 1, 25 ], "ender-pearl": [ 1, 1, 50 ], "iron-helmet": [ 1, 1, 25 ], "redstone": [ 4, 9, 25 ], "emerald": [ 1, 3, 15 ], "iron-chestplate": [ 1, 1, 25 ], "bread": [ 1, 3, 75 ] }, "rolls": [ 2, 3 ], "totalweight": 521 }, { "items": { "empty": [ 1, 1, 9 ], "eye-armor-trim-smithing-template": [ 1, 1, 1 ] }, "rolls": [ 1, 1 ], "totalweight": 10 } ], "allRollsBedrockUpcoming": [], "allRollsBedrock": [ "2–3", 1 ], "itemDataBedrockUpcoming": [], "header": "Altar", "allRollsJava": [ "2–3", 1 ], "link": "[[stronghold]] altar", "structID": "stronghold" } } }

In Bedrock Edition, each stronghold altar chest contains items drawn from 2 pools, with the following distribution:

Item	Stack Size ^[A]		Weight ^[B]		Chance ^[C]	Avg. per chest ^[D]	Avg. # chests to search ^[E]
Item	2–3×	1×	2–3×	1×	Chance ^[C]	Avg. per chest ^[D]	Avg. # chests to search ^[E]
👁 BlockSprite air.png: Sprite image for air in Minecraft Nothing^[F]	—	1	—	⁹⁄₁₀	90.0%	0.900	1.1
👁 Image Apple	1–3	—	⁷⁵⁄₅₂₁	—	32.0%	0.720	3.1
👁 Image Bread	1–3	—	⁷⁵⁄₅₂₁	—	32.0%	0.720	3.1
👁 Image Iron Ingot	1–5	—	⁵⁰⁄₅₂₁	—	22.2%	0.720	4.5
👁 Image Ender Pearl	1	—	⁵⁰⁄₅₂₁	—	22.2%	0.240	4.5
👁 Image Redstone Dust	4–9	—	²⁵⁄₅₂₁	—	11.5%	0.780	8.7
👁 Image Gold Ingot	1–3	—	²⁵⁄₅₂₁	—	11.5%	0.240	8.7
👁 Image Iron Pickaxe	1	—	²⁵⁄₅₂₁	—	11.5%	0.120	8.7
👁 Image Iron Sword	1	—	²⁵⁄₅₂₁	—	11.5%	0.120	8.7
👁 Image Iron Helmet	1	—	²⁵⁄₅₂₁	—	11.5%	0.120	8.7
👁 Image Iron Chestplate	1	—	²⁵⁄₅₂₁	—	11.5%	0.120	8.7
👁 Image Iron Leggings	1	—	²⁵⁄₅₂₁	—	11.5%	0.120	8.7
👁 Image Iron Boots	1	—	²⁵⁄₅₂₁	—	11.5%	0.120	8.7
👁 Image Eye Armor Trim Smithing Template	—	1	—	¹⁄₁₀	10.0%	0.100	10.0
👁 Image Emerald	1–3	—	¹⁵⁄₅₂₁	—	7.0%	0.144	14.2
👁 Image Diamond	1–3	—	¹⁵⁄₅₂₁	—	7.0%	0.144	14.2
👁 Image Enchanted Book^[G]	1	—	⁶⁄₅₂₁	—	2.9%	0.029	35.1
👁 Image Leather	1–5	—	⁵⁄₅₂₁	—	2.4%	0.072	42.0
👁 Image Copper Horse Armor	1	—	⁵⁄₅₂₁	—	2.4%	0.024	42.0
👁 Image Music Disc (otherside)	1	—	⁵⁄₅₂₁	—	2.4%	0.024	42.0
👁 Image Iron Horse Armor	1	—	⁵⁄₅₂₁	—	2.4%	0.024	42.0
👁 Image Golden Apple	1	—	⁵⁄₅₂₁	—	2.4%	0.024	42.0
👁 Image Golden Horse Armor	1	—	⁵⁄₅₂₁	—	2.4%	0.024	42.0
👁 Image Diamond Horse Armor	1	—	⁵⁄₅₂₁	—	2.4%	0.024	42.0

{ "chestNames": [ "stronghold-altar" ], "gameVersion": "Bedrock", "loot": { "stronghold-altar": { "poolsJava": [ { "items": { "diamond-horse-armor": [ 1, 1, 1 ], "disc-otherside": [ 1, 1, 1 ], "gold-ingot": [ 1, 3, 5 ], "iron-boots": [ 1, 1, 5 ], "iron-horse-armor": [ 1, 1, 1 ], "iron-pickaxe": [ 1, 1, 5 ], "apple": [ 1, 3, 15 ], "iron-ingot": [ 1, 5, 10 ], "enchanted-book": [ 1, 1, 1 ], "diamond": [ 1, 3, 3 ], "copper-horse-armor": [ 1, 1, 1 ], "golden-apple": [ 1, 1, 1 ], "iron-helmet": [ 1, 1, 5 ], "iron-sword": [ 1, 1, 5 ], "leather": [ 1, 5, 1 ], "ender-pearl": [ 1, 1, 10 ], "iron-leggings": [ 1, 1, 5 ], "redstone": [ 4, 9, 5 ], "golden-horse-armor": [ 1, 1, 1 ], "iron-chestplate": [ 1, 1, 5 ], "bread": [ 1, 3, 15 ] }, "rolls": [ 2, 3 ], "totalweight": 101 }, { "items": { "empty": [ 1, 1, 9 ], "eye-armor-trim-smithing-template": [ 1, 1, 1 ] }, "rolls": [ 1, 1 ], "totalweight": 10 } ], "poolsBedrockUpcoming": [], "itemDataJava": { "diamond-horse-armor": { "sortsize": [ 1, 0 ], "weights": [ "<sup>1</sup>&frasl;<sub>101</sub>", "—" ], "chanceany": 0.024556901332717374, "sizes": [ 1, "—" ], "sortweight": [ 1, 0 ], "armor": 0, "material": 4, "avgamount": 0.024752475247524754, "itemname": "diamond-horse-armor" }, "disc-otherside": { "sortsize": [ 1, 0 ], "weights": [ "<sup>1</sup>&frasl;<sub>101</sub>", "—" ], "chanceany": 0.024556901332717374, "sizes": [ 1, "—" ], "sortweight": [ 1, 0 ], "armor": 0, "material": 0, "avgamount": 0.024752475247524754, "itemname": "disc-otherside" }, "gold-ingot": { "itemname": "gold-ingot", "sizes": [ "1–3", "—" ], "sortsize": [ 2, 0 ], "sortweight": [ 5, 0 ], "weights": [ "<sup>5</sup>&frasl;<sub>101</sub>", "—" ], "avgamount": 0.24752475247524752, "chanceany": 0.1189215578748346 }, "iron-boots": { "sortsize": [ 1, 0 ], "weights": [ "<sup>5</sup>&frasl;<sub>101</sub>", "—" ], "chanceany": 0.1189215578748346, "sizes": [ 1, "—" ], "sortweight": [ 5, 0 ], "armor": 4, "material": 2, "avgamount": 0.12376237623762376, "itemname": 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"weights": [ "—", "<sup>1</sup>&frasl;<sub>10</sub>" ], "avgamount": 0.1, "chanceany": 0.09999999999999998 }, "empty": { "itemname": "empty", "sizes": [ "—", 1 ], "sortsize": [ 0, 1 ], "sortweight": [ 0, 9 ], "weights": [ "—", "<sup>9</sup>&frasl;<sub>10</sub>" ], "avgamount": 0.9, "chanceany": 0.9 }, "golden-apple": { "sortsize": [ 1, 0 ], "weights": [ "<sup>1</sup>&frasl;<sub>101</sub>", "—" ], "chanceany": 0.024556901332717374, "sizes": [ 1, "—" ], "sortweight": [ 1, 0 ], "armor": 0, "material": 3, "avgamount": 0.024752475247524754, "itemname": "golden-apple" }, "bread": { "sortsize": [ 2, 0 ], "weights": [ "<sup>15</sup>&frasl;<sub>101</sub>", "—" ], "chanceany": 0.3288116773641878, "sizes": [ "1–3", "—" ], "sortweight": [ 15, 0 ], "armor": 0, "material": 0, "avgamount": 0.7425742574257426, "itemname": "bread" }, "iron-helmet": { "sortsize": [ 1, 0 ], "weights": [ "<sup>5</sup>&frasl;<sub>101</sub>", "—" ], "chanceany": 0.1189215578748346, "sizes": [ 1, "—" ], "sortweight": [ 5, 0 ], "armor": 1, "material": 2, "avgamount": 0.12376237623762376, "itemname": "iron-helmet" }, "leather": { "itemname": "leather", "sizes": [ "1–5", "—" ], "sortsize": [ 3, 0 ], "sortweight": [ 1, 0 ], "weights": [ "<sup>1</sup>&frasl;<sub>101</sub>", "—" ], "avgamount": 0.07425742574257425, "chanceany": 0.024556901332717374 }, "ender-pearl": { "itemname": "ender-pearl", "sizes": [ 1, "—" ], "sortsize": [ 1, 0 ], "sortweight": [ 10, 0 ], "weights": [ "<sup>10</sup>&frasl;<sub>101</sub>", "—" ], "avgamount": 0.24752475247524752, "chanceany": 0.228404126561073 }, "iron-leggings": { "sortsize": [ 1, 0 ], "weights": [ "<sup>5</sup>&frasl;<sub>101</sub>", "—" ], "chanceany": 0.1189215578748346, "sizes": [ 1, "—" ], "sortweight": [ 5, 0 ], "armor": 3, "material": 2, "avgamount": 0.12376237623762376, "itemname": "iron-leggings" }, "redstone": { "itemname": "redstone", "sizes": [ "4–9", "—" ], "sortsize": [ 6.5, 0 ], "sortweight": [ 5, 0 ], "weights": [ "<sup>5</sup>&frasl;<sub>101</sub>", "—" ], "avgamount": 0.8044554455445545, "chanceany": 0.1189215578748346 }, "golden-horse-armor": { "sortsize": [ 1, 0 ], "weights": [ "<sup>1</sup>&frasl;<sub>101</sub>", "—" ], "chanceany": 0.024556901332717374, "sizes": [ 1, "—" ], "sortweight": [ 1, 0 ], "armor": 0, "material": 3, "avgamount": 0.024752475247524754, "itemname": "golden-horse-armor" }, "iron-chestplate": { "sortsize": [ 1, 0 ], "weights": [ "<sup>5</sup>&frasl;<sub>101</sub>", "—" ], "chanceany": 0.1189215578748346, "sizes": [ 1, "—" ], "sortweight": [ 5, 0 ], "armor": 2, "material": 2, "avgamount": 0.12376237623762376, "itemname": "iron-chestplate" }, "iron-sword": { "sortsize": [ 1, 0 ], "weights": [ "<sup>5</sup>&frasl;<sub>101</sub>", "—" ], "chanceany": 0.1189215578748346, "sizes": [ 1, "—" ], "sortweight": [ 5, 0 ], "armor": 0, "material": 2, "avgamount": 0.12376237623762376, "itemname": "iron-sword" } }, "superheader": "[[Stronghold]]", "poolsJavaUpcoming": [], "structure": "Stronghold", "container": "Altar chest", "itemDataJavaUpcoming": [], "allRollsJavaUpcoming": [], "itemDataBedrock": { "diamond-horse-armor": { "sortsize": [ 1, 0 ], "weights": [ "<sup>5</sup>&frasl;<sub>521</sub>", "—" ], "chanceany": 0.02380856230861328, "sizes": [ 1, "—" ], "sortweight": [ 5, 0 ], "armor": 0, "material": 4, "avgamount": 0.02399232245681382, "itemname": "diamond-horse-armor" }, "disc-otherside": { "sortsize": [ 1, 0 ], "weights": [ "<sup>5</sup>&frasl;<sub>521</sub>", "—" ], "chanceany": 0.02380856230861328, "sizes": [ 1, "—" ], "sortweight": [ 5, 0 ], "armor": 0, "material": 0, "avgamount": 0.02399232245681382, "itemname": "disc-otherside" }, "gold-ingot": { "itemname": "gold-ingot", "sizes": [ "1–3", "—" ], "sortsize": [ 2, 0 ], "sortweight": [ 25, 0 ], "weights": [ "<sup>25</sup>&frasl;<sub>521</sub>", "—" ], "avgamount": 0.2399232245681382, "chanceany": 0.11541180293889097 }, "iron-boots": { "sortsize": [ 1, 0 ], "weights": [ "<sup>25</sup>&frasl;<sub>521</sub>", "—" ], "chanceany": 0.11541180293889097, "sizes": [ 1, "—" ], "sortweight": [ 25, 0 ], "armor": 4, "material": 2, "avgamount": 0.1199616122840691, "itemname": "iron-boots" }, "iron-horse-armor": { "sortsize": [ 1, 0 ], "weights": [ "<sup>5</sup>&frasl;<sub>521</sub>", "—" ], "chanceany": 0.02380856230861328, "sizes": [ 1, "—" ], "sortweight": [ 5, 0 ], "armor": 0, "material": 2, "avgamount": 0.02399232245681382, "itemname": "iron-horse-armor" }, "iron-pickaxe": { "sortsize": [ 1, 0 ], "weights": [ "<sup>25</sup>&frasl;<sub>521</sub>", "—" ], "chanceany": 0.11541180293889097, "sizes": [ 1, "—" ], "sortweight": [ 25, 0 ], "armor": 0, "material": 2, "avgamount": 0.1199616122840691, "itemname": "iron-pickaxe" }, "apple": { "sortsize": [ 2, 0 ], "weights": [ "<sup>75</sup>&frasl;<sub>521</sub>", "—" ], "chanceany": 0.31993092584192784, "sizes": [ "1–3", "—" ], "sortweight": [ 75, 0 ], "armor": 0, "material": 0, "avgamount": 0.7197696737044146, "itemname": "apple" }, "iron-ingot": { "itemname": "iron-ingot", "sizes": [ "1–5", "—" ], "sortsize": [ 3, 0 ], "sortweight": [ 50, 0 ], "weights": [ "<sup>50</sup>&frasl;<sub>521</sub>", "—" ], "avgamount": 0.7197696737044146, "chanceany": 0.2219449589866087 }, "enchanted-book": { "itemname": "enchanted-book", "sizes": [ 1, "—" ], "sortsize": [ 1, 0 ], "sortweight": [ 6, 0 ], "weights": [ "<sup>6</sup>&frasl;<sub>521</sub>", "—" ], "avgamount": 0.028790786948176585, "chanceany": 0.02852629961452402 }, "diamond": { "sortsize": [ 2, 0 ], "weights": [ "<sup>15</sup>&frasl;<sub>521</sub>", "—" ], "chanceany": 0.07033108102140684, "sizes": [ "1–3", "—" ], "sortweight": [ 15, 0 ], "armor": 0, "material": 4, "avgamount": 0.14395393474088292, "itemname": "diamond" }, "copper-horse-armor": { "sortsize": [ 1, 0 ], "weights": [ "<sup>5</sup>&frasl;<sub>521</sub>", "—" ], "chanceany": 0.02380856230861328, "sizes": [ 1, "—" ], "sortweight": [ 5, 0 ], "armor": 0, "material": 0, "avgamount": 0.02399232245681382, "itemname": "copper-horse-armor" }, "eye-armor-trim-smithing-template": { "itemname": "eye-armor-trim-smithing-template", "sizes": [ "—", 1 ], "sortsize": [ 0, 1 ], "sortweight": [ 0, 1 ], "weights": [ "—", "<sup>1</sup>&frasl;<sub>10</sub>" ], "avgamount": 0.1, "chanceany": 0.09999999999999998 }, "empty": { "itemname": "empty", "sizes": [ "—", 1 ], "sortsize": [ 0, 1 ], "sortweight": [ 0, 9 ], "weights": [ "—", "<sup>9</sup>&frasl;<sub>10</sub>" ], "avgamount": 0.9, "chanceany": 0.9 }, "bread": { "sortsize": [ 2, 0 ], "weights": [ "<sup>75</sup>&frasl;<sub>521</sub>", "—" ], "chanceany": 0.31993092584192784, "sizes": [ "1–3", "—" ], "sortweight": [ 75, 0 ], "armor": 0, "material": 0, "avgamount": 0.7197696737044146, "itemname": "bread" }, "golden-apple": { "sortsize": [ 1, 0 ], "weights": [ "<sup>5</sup>&frasl;<sub>521</sub>", "—" ], "chanceany": 0.02380856230861328, "sizes": [ 1, "—" ], "sortweight": [ 5, 0 ], "armor": 0, "material": 3, "avgamount": 0.02399232245681382, "itemname": "golden-apple" }, "iron-leggings": { "sortsize": [ 1, 0 ], "weights": [ "<sup>25</sup>&frasl;<sub>521</sub>", "—" ], "chanceany": 0.11541180293889097, "sizes": [ 1, "—" ], "sortweight": [ 25, 0 ], "armor": 3, "material": 2, "avgamount": 0.1199616122840691, "itemname": "iron-leggings" }, "leather": { "itemname": "leather", "sizes": [ "1–5", "—" ], "sortsize": [ 3, 0 ], "sortweight": [ 5, 0 ], "weights": [ "<sup>5</sup>&frasl;<sub>521</sub>", "—" ], "avgamount": 0.07197696737044146, "chanceany": 0.02380856230861328 }, "emerald": { "sortsize": [ 2, 0 ], "weights": [ "<sup>15</sup>&frasl;<sub>521</sub>", "—" ], "chanceany": 0.07033108102140684, "sizes": [ "1–3", "—" ], "sortweight": [ 15, 0 ], "armor": 0, "material": 0, "avgamount": 0.14395393474088292, "itemname": "emerald" }, "ender-pearl": { "itemname": "ender-pearl", "sizes": [ 1, "—" ], "sortsize": [ 1, 0 ], "sortweight": [ 50, 0 ], "weights": [ "<sup>50</sup>&frasl;<sub>521</sub>", "—" ], "avgamount": 0.2399232245681382, "chanceany": 0.2219449589866087 }, "iron-helmet": { "sortsize": [ 1, 0 ], "weights": [ "<sup>25</sup>&frasl;<sub>521</sub>", "—" ], "chanceany": 0.11541180293889097, "sizes": [ 1, "—" ], "sortweight": [ 25, 0 ], "armor": 1, "material": 2, "avgamount": 0.1199616122840691, "itemname": "iron-helmet" }, "redstone": { "itemname": "redstone", "sizes": [ "4–9", "—" ], "sortsize": [ 6.5, 0 ], "sortweight": [ 25, 0 ], "weights": [ "<sup>25</sup>&frasl;<sub>521</sub>", "—" ], "avgamount": 0.7797504798464492, "chanceany": 0.11541180293889097 }, "golden-horse-armor": { "sortsize": [ 1, 0 ], "weights": [ "<sup>5</sup>&frasl;<sub>521</sub>", "—" ], "chanceany": 0.02380856230861328, "sizes": [ 1, "—" ], "sortweight": [ 5, 0 ], "armor": 0, "material": 3, "avgamount": 0.02399232245681382, "itemname": "golden-horse-armor" }, "iron-chestplate": { "sortsize": [ 1, 0 ], "weights": [ "<sup>25</sup>&frasl;<sub>521</sub>", "—" ], "chanceany": 0.11541180293889097, "sizes": [ 1, "—" ], "sortweight": [ 25, 0 ], "armor": 2, "material": 2, "avgamount": 0.1199616122840691, "itemname": "iron-chestplate" }, "iron-sword": { "sortsize": [ 1, 0 ], "weights": [ "<sup>25</sup>&frasl;<sub>521</sub>", "—" ], "chanceany": 0.11541180293889097, "sizes": [ 1, "—" ], "sortweight": [ 25, 0 ], "armor": 0, "material": 2, "avgamount": 0.1199616122840691, "itemname": "iron-sword" } }, "poolsBedrock": [ { "items": { "diamond-horse-armor": [ 1, 1, 5 ], "disc-otherside": [ 1, 1, 5 ], "gold-ingot": [ 1, 3, 25 ], "iron-boots": [ 1, 1, 25 ], "iron-horse-armor": [ 1, 1, 5 ], "iron-pickaxe": [ 1, 1, 25 ], "apple": [ 1, 3, 75 ], "iron-ingot": [ 1, 5, 50 ], "enchanted-book": [ 1, 1, 6 ], "diamond": [ 1, 3, 15 ], "copper-horse-armor": [ 1, 1, 5 ], "golden-horse-armor": [ 1, 1, 5 ], "golden-apple": [ 1, 1, 5 ], "leather": [ 1, 5, 5 ], "iron-sword": [ 1, 1, 25 ], "iron-leggings": [ 1, 1, 25 ], "ender-pearl": [ 1, 1, 50 ], "iron-helmet": [ 1, 1, 25 ], "redstone": [ 4, 9, 25 ], "emerald": [ 1, 3, 15 ], "iron-chestplate": [ 1, 1, 25 ], "bread": [ 1, 3, 75 ] }, "rolls": [ 2, 3 ], "totalweight": 521 }, { "items": { "empty": [ 1, 1, 9 ], "eye-armor-trim-smithing-template": [ 1, 1, 1 ] }, "rolls": [ 1, 1 ], "totalweight": 10 } ], "allRollsBedrockUpcoming": [], "allRollsBedrock": [ "2–3", 1 ], "itemDataBedrockUpcoming": [], "header": "Altar", "allRollsJava": [ "2–3", 1 ], "link": "[[stronghold]] altar", "structID": "stronghold" } } }

↑ ^a ^b The size of stacks (or for unstackable items, number) of this item on any given roll.
↑ ^a ^b The weight of this item relative to other items in the pool.
↑ ^a ^b The odds of finding any of this item in a single chest.
↑ ^a ^b The number of items expected per chest, averaged over a large number of chests.
↑ ^a ^b The average number of chests the player should expect to search to find any of this item.
↑ ^a ^b 'Nothing' does not refer to the chance of an empty chest. Instead, it refers to the chance that the random loot generator does not add any loot on a single roll.
↑ ^a ^b Enchantment probabilities are the same as a level-30 enchantment on an enchanting table that was able to apply treasure enchantments (except Soul Speed, Swift Sneak, and Wind Burst), and where the chance of multiple enchantments is not reduced.

Storerooms

[edit | edit source]

Storeroom chests are found in the "store" room variant of large rooms.

In Java Edition, each stronghold storeroom chest contains 1–4 item stacks, with the following distribution:

Item	Stack Size ^[A]	Weight ^[B]	Chance ^[C]	Avg. per chest ^[D]	Avg. # chests to search ^[E]
👁 Image Apple	1–3	¹⁵⁄₆₂	47.5%	1.210	2.1
👁 Image Bread	1–3	¹⁵⁄₆₂	47.5%	1.210	2.1
👁 Image Coal	3–8	¹⁰⁄₆₂	34.3%	2.218	2.9
👁 Image Iron Ingot	1–5	¹⁰⁄₆₂	34.3%	1.210	2.9
👁 Image Redstone Dust	4–9	⁵⁄₆₂	18.6%	1.310	5.4
👁 Image Gold Ingot	1–3	⁵⁄₆₂	18.6%	0.403	5.4
👁 Image Enchanted Book^[F]	1	¹⁄₆₂	4.0%	0.040	25.2
👁 Image Iron Pickaxe	1	¹⁄₆₂	4.0%	0.040	25.2

{ "chestNames": [ "stronghold-storeroom" ], "gameVersion": "Java", "loot": { "stronghold-storeroom": { "poolsJava": [ { "items": { "coal": [ 3, 8, 10 ], "bread": [ 1, 3, 15 ], "apple": [ 1, 3, 15 ], "iron-pickaxe": [ 1, 1, 1 ], "redstone": [ 4, 9, 5 ], "iron-ingot": [ 1, 5, 10 ], "gold-ingot": [ 1, 3, 5 ], "enchanted-book": [ 1, 1, 1 ] }, "rolls": [ 1, 4 ], "totalweight": 62 } ], "poolsBedrockUpcoming": [], "itemDataJava": { "redstone": { "itemname": "redstone", "sizes": [ "4–9" ], "sortsize": [ 6.5 ], "sortweight": [ 5 ], "weights": [ "<sup>5</sup>&frasl;<sub>62</sub>" ], "avgamount": 1.310483870967742, "chanceany": 0.18599883286357333 }, "gold-ingot": { "itemname": "gold-ingot", "sizes": [ "1–3" ], "sortsize": [ 2 ], "sortweight": [ 5 ], "weights": [ "<sup>5</sup>&frasl;<sub>62</sub>" ], "avgamount": 0.4032258064516129, "chanceany": 0.18599883286357333 }, "iron-ingot": { "itemname": "iron-ingot", "sizes": [ "1–5" ], "sortsize": [ 3 ], "sortweight": [ 10 ], "weights": [ "<sup>10</sup>&frasl;<sub>62</sub>" ], "avgamount": 1.2096774193548387, "chanceany": 0.34326506922961153 }, "iron-pickaxe": { "sortsize": [ 1 ], "weights": [ "<sup>1</sup>&frasl;<sub>62</sub>" ], "chanceany": 0.03967744439487575, "sizes": [ 1 ], "sortweight": [ 1 ], "armor": 0, "material": 2, "avgamount": 0.04032258064516129, "itemname": "iron-pickaxe" }, "apple": { "sortsize": [ 2 ], "weights": [ "<sup>15</sup>&frasl;<sub>62</sub>" ], "chanceany": 0.4753516873195087, "sizes": [ "1–3" ], "sortweight": [ 15 ], "armor": 0, "material": 0, "avgamount": 1.2096774193548387, "itemname": "apple" }, "bread": { "sortsize": [ 2 ], "weights": [ "<sup>15</sup>&frasl;<sub>62</sub>" ], "chanceany": 0.4753516873195087, "sizes": [ "1–3" ], "sortweight": [ 15 ], "armor": 0, "material": 0, "avgamount": 1.2096774193548387, "itemname": "bread" }, "coal": { "itemname": "coal", "sizes": [ "3–8" ], "sortsize": [ 5.5 ], "sortweight": [ 10 ], "weights": [ "<sup>10</sup>&frasl;<sub>62</sub>" ], "avgamount": 2.217741935483871, "chanceany": 0.34326506922961153 }, "enchanted-book": { "sortsize": [ 1 ], "weights": [ "<sup>1</sup>&frasl;<sub>62</sub>" ], "chanceany": 0.03967744439487575, "sizes": [ 1 ], "sortweight": [ 1 ], "armor": 0, "material": 0, "avgamount": 0.04032258064516129, "itemname": "enchanted-book" } }, "superheader": "[[Stronghold]]", "poolsJavaUpcoming": [], "structure": "Stronghold", "container": "Storeroom chest", "itemDataJavaUpcoming": [], "allRollsJavaUpcoming": [], "itemDataBedrock": { "ink-sac": { "sortsize": [ 2 ], "weights": [ "<sup>75</sup>&frasl;<sub>386</sub>" ], "chanceany": 0.40018245990447665, "sizes": [ "1–3" ], "sortweight": [ 75 ], "armor": 0, "material": 0, "avgamount": 0.9715025906735751, "itemname": "ink-sac" }, "gold-ingot": { "itemname": "gold-ingot", "sizes": [ "1–3" ], "sortsize": [ 2 ], "sortweight": [ 25 ], "weights": [ "<sup>25</sup>&frasl;<sub>386</sub>" ], "avgamount": 0.3238341968911917, "chanceany": 0.15176544111650658 }, "coal": { "itemname": "coal", "sizes": [ "3–8" ], "sortsize": [ 5.5 ], "sortweight": [ 50 ], "weights": [ "<sup>50</sup>&frasl;<sub>386</sub>" ], "avgamount": 1.7810880829015545, "chanceany": 0.2845331813431661 }, "bread": { "sortsize": [ 2 ], "weights": [ "<sup>75</sup>&frasl;<sub>386</sub>" ], "chanceany": 0.40018245990447665, "sizes": [ "1–3" ], "sortweight": [ 75 ], "armor": 0, "material": 0, "avgamount": 0.9715025906735751, "itemname": "bread" }, "iron-pickaxe": { "itemname": "iron-pickaxe", "sizes": [ 1 ], "sortsize": [ 1 ], "sortweight": [ 5 ], "weights": [ "<sup>5</sup>&frasl;<sub>386</sub>" ], "avgamount": 0.03238341968911917, "chanceany": 0.03196665510523944 }, "apple": { "sortsize": [ 2 ], "weights": [ "<sup>75</sup>&frasl;<sub>386</sub>" ], "chanceany": 0.40018245990447665, "sizes": [ "1–3" ], "sortweight": [ 75 ], "armor": 0, "material": 0, "avgamount": 0.9715025906735751, "itemname": "apple" }, "iron-ingot": { "itemname": "iron-ingot", "sizes": [ "1–5" ], "sortsize": [ 3 ], "sortweight": [ 50 ], "weights": [ "<sup>50</sup>&frasl;<sub>386</sub>" ], "avgamount": 0.9715025906735751, "chanceany": 0.2845331813431661 }, "redstone": { "sortsize": [ 6.5 ], "weights": [ "<sup>25</sup>&frasl;<sub>386</sub>" ], "chanceany": 0.15176544111650658, "sizes": [ "4–9" ], "sortweight": [ 25 ], "armor": 0, "material": 0, "avgamount": 1.052461139896373, "itemname": "redstone" }, "enchanted-book": { "sortsize": [ 1 ], "weights": [ "<sup>6</sup>&frasl;<sub>386</sub>" ], "chanceany": 0.038260740605857047, "sizes": [ 1 ], "sortweight": [ 6 ], "armor": 0, "material": 0, "avgamount": 0.038860103626943004, "itemname": "enchanted-book" } }, "poolsBedrock": [ { "items": { "ink-sac": [ 1, 3, 75 ], "gold-ingot": [ 1, 3, 25 ], "coal": [ 3, 8, 50 ], "apple": [ 1, 3, 75 ], "iron-pickaxe": [ 1, 1, 5 ], "redstone": [ 4, 9, 25 ], "iron-ingot": [ 1, 5, 50 ], "bread": [ 1, 3, 75 ], "enchanted-book": [ 1, 1, 6 ] }, "rolls": [ 1, 4 ], "totalweight": 386 } ], "allRollsBedrockUpcoming": [], "allRollsBedrock": [ "1–4" ], "itemDataBedrockUpcoming": [], "header": "Storeroom", "allRollsJava": [ "1–4" ], "link": "[[stronghold]] storeroom", "structID": "stronghold" } } }

In Bedrock Edition, each stronghold storeroom chest contains 1–4 item stacks, with the following distribution:

Item	Stack Size ^[A]	Weight ^[B]	Chance ^[C]	Avg. per chest ^[D]	Avg. # chests to search ^[E]
👁 Image Apple	1–3	⁷⁵⁄₃₈₆	40.0%	0.972	2.5
👁 Image Bread	1–3	⁷⁵⁄₃₈₆	40.0%	0.972	2.5
👁 Image Ink Sac	1–3	⁷⁵⁄₃₈₆	40.0%	0.972	2.5
👁 Image Coal	3–8	⁵⁰⁄₃₈₆	28.5%	1.781	3.5
👁 Image Iron Ingot	1–5	⁵⁰⁄₃₈₆	28.5%	0.972	3.5
👁 Image Redstone Dust	4–9	²⁵⁄₃₈₆	15.2%	1.052	6.6
👁 Image Gold Ingot	1–3	²⁵⁄₃₈₆	15.2%	0.324	6.6
👁 Image Enchanted Book^[F]	1	⁶⁄₃₈₆	3.8%	0.039	26.1
👁 Image Iron Pickaxe	1	⁵⁄₃₈₆	3.2%	0.032	31.3

{ "chestNames": [ "stronghold-storeroom" ], "gameVersion": "Bedrock", "loot": { "stronghold-storeroom": { "poolsJava": [ { "items": { "coal": [ 3, 8, 10 ], "bread": [ 1, 3, 15 ], "apple": [ 1, 3, 15 ], "iron-pickaxe": [ 1, 1, 1 ], "redstone": [ 4, 9, 5 ], "iron-ingot": [ 1, 5, 10 ], "gold-ingot": [ 1, 3, 5 ], "enchanted-book": [ 1, 1, 1 ] }, "rolls": [ 1, 4 ], "totalweight": 62 } ], "poolsBedrockUpcoming": [], "itemDataJava": { "redstone": { "itemname": "redstone", "sizes": [ "4–9" ], "sortsize": [ 6.5 ], "sortweight": [ 5 ], "weights": [ "<sup>5</sup>&frasl;<sub>62</sub>" ], "avgamount": 1.310483870967742, "chanceany": 0.18599883286357333 }, "gold-ingot": { "itemname": "gold-ingot", "sizes": [ "1–3" ], "sortsize": [ 2 ], "sortweight": [ 5 ], "weights": [ "<sup>5</sup>&frasl;<sub>62</sub>" ], "avgamount": 0.4032258064516129, "chanceany": 0.18599883286357333 }, "iron-ingot": { "itemname": "iron-ingot", "sizes": [ "1–5" ], "sortsize": [ 3 ], "sortweight": [ 10 ], "weights": [ "<sup>10</sup>&frasl;<sub>62</sub>" ], "avgamount": 1.2096774193548387, "chanceany": 0.34326506922961153 }, "iron-pickaxe": { "sortsize": [ 1 ], "weights": [ "<sup>1</sup>&frasl;<sub>62</sub>" ], "chanceany": 0.03967744439487575, "sizes": [ 1 ], "sortweight": [ 1 ], "armor": 0, "material": 2, "avgamount": 0.04032258064516129, "itemname": "iron-pickaxe" }, "apple": { "sortsize": [ 2 ], "weights": [ "<sup>15</sup>&frasl;<sub>62</sub>" ], "chanceany": 0.4753516873195087, "sizes": [ "1–3" ], "sortweight": [ 15 ], "armor": 0, "material": 0, "avgamount": 1.2096774193548387, "itemname": "apple" }, "bread": { "sortsize": [ 2 ], "weights": [ "<sup>15</sup>&frasl;<sub>62</sub>" ], "chanceany": 0.4753516873195087, "sizes": [ "1–3" ], "sortweight": [ 15 ], "armor": 0, "material": 0, "avgamount": 1.2096774193548387, "itemname": "bread" }, "coal": { "itemname": "coal", "sizes": [ "3–8" ], "sortsize": [ 5.5 ], "sortweight": [ 10 ], "weights": [ "<sup>10</sup>&frasl;<sub>62</sub>" ], "avgamount": 2.217741935483871, "chanceany": 0.34326506922961153 }, "enchanted-book": { "sortsize": [ 1 ], "weights": [ "<sup>1</sup>&frasl;<sub>62</sub>" ], "chanceany": 0.03967744439487575, "sizes": [ 1 ], "sortweight": [ 1 ], "armor": 0, "material": 0, "avgamount": 0.04032258064516129, "itemname": "enchanted-book" } }, "superheader": "[[Stronghold]]", "poolsJavaUpcoming": [], "structure": "Stronghold", "container": "Storeroom chest", "itemDataJavaUpcoming": [], "allRollsJavaUpcoming": [], "itemDataBedrock": { "ink-sac": { "sortsize": [ 2 ], "weights": [ "<sup>75</sup>&frasl;<sub>386</sub>" ], "chanceany": 0.40018245990447665, "sizes": [ "1–3" ], "sortweight": [ 75 ], "armor": 0, "material": 0, "avgamount": 0.9715025906735751, "itemname": "ink-sac" }, "gold-ingot": { "itemname": "gold-ingot", "sizes": [ "1–3" ], "sortsize": [ 2 ], "sortweight": [ 25 ], "weights": [ "<sup>25</sup>&frasl;<sub>386</sub>" ], "avgamount": 0.3238341968911917, "chanceany": 0.15176544111650658 }, "coal": { "itemname": "coal", "sizes": [ "3–8" ], "sortsize": [ 5.5 ], "sortweight": [ 50 ], "weights": [ "<sup>50</sup>&frasl;<sub>386</sub>" ], "avgamount": 1.7810880829015545, "chanceany": 0.2845331813431661 }, "bread": { "sortsize": [ 2 ], "weights": [ "<sup>75</sup>&frasl;<sub>386</sub>" ], "chanceany": 0.40018245990447665, "sizes": [ "1–3" ], "sortweight": [ 75 ], "armor": 0, "material": 0, "avgamount": 0.9715025906735751, "itemname": "bread" }, "iron-pickaxe": { "itemname": "iron-pickaxe", "sizes": [ 1 ], "sortsize": [ 1 ], "sortweight": [ 5 ], "weights": [ "<sup>5</sup>&frasl;<sub>386</sub>" ], "avgamount": 0.03238341968911917, "chanceany": 0.03196665510523944 }, "apple": { "sortsize": [ 2 ], "weights": [ "<sup>75</sup>&frasl;<sub>386</sub>" ], "chanceany": 0.40018245990447665, "sizes": [ "1–3" ], "sortweight": [ 75 ], "armor": 0, "material": 0, "avgamount": 0.9715025906735751, "itemname": "apple" }, "iron-ingot": { "itemname": "iron-ingot", "sizes": [ "1–5" ], "sortsize": [ 3 ], "sortweight": [ 50 ], "weights": [ "<sup>50</sup>&frasl;<sub>386</sub>" ], "avgamount": 0.9715025906735751, "chanceany": 0.2845331813431661 }, "redstone": { "sortsize": [ 6.5 ], "weights": [ "<sup>25</sup>&frasl;<sub>386</sub>" ], "chanceany": 0.15176544111650658, "sizes": [ "4–9" ], "sortweight": [ 25 ], "armor": 0, "material": 0, "avgamount": 1.052461139896373, "itemname": "redstone" }, "enchanted-book": { "sortsize": [ 1 ], "weights": [ "<sup>6</sup>&frasl;<sub>386</sub>" ], "chanceany": 0.038260740605857047, "sizes": [ 1 ], "sortweight": [ 6 ], "armor": 0, "material": 0, "avgamount": 0.038860103626943004, "itemname": "enchanted-book" } }, "poolsBedrock": [ { "items": { "ink-sac": [ 1, 3, 75 ], "gold-ingot": [ 1, 3, 25 ], "coal": [ 3, 8, 50 ], "apple": [ 1, 3, 75 ], "iron-pickaxe": [ 1, 1, 5 ], "redstone": [ 4, 9, 25 ], "iron-ingot": [ 1, 5, 50 ], "bread": [ 1, 3, 75 ], "enchanted-book": [ 1, 1, 6 ] }, "rolls": [ 1, 4 ], "totalweight": 386 } ], "allRollsBedrockUpcoming": [], "allRollsBedrock": [ "1–4" ], "itemDataBedrockUpcoming": [], "header": "Storeroom", "allRollsJava": [ "1–4" ], "link": "[[stronghold]] storeroom", "structID": "stronghold" } } }

↑ ^a ^b The size of stacks (or for unstackable items, number) of this item on any given roll.
↑ ^a ^b The weight of this item relative to other items in the pool.
↑ ^a ^b The odds of finding any of this item in a single chest.
↑ ^a ^b The number of items expected per chest, averaged over a large number of chests.
↑ ^a ^b The average number of chests the player should expect to search to find any of this item.
↑ ^a ^b Enchantment probabilities are the same as a level-30 enchantment on an enchanting table that was able to apply treasure enchantments (except Soul Speed, Swift Sneak, and Wind Burst), and where the chance of multiple enchantments is not reduced.

Libraries

[edit | edit source]

In Java Edition, each stronghold library chest contains items drawn from 2 pools, with the following distribution:

Item	Stack Size ^[A]		Weight ^[B]		Chance ^[C]	Avg. per chest ^[D]	Avg. # chests to search ^[E]
Item	2–10×	1×	2–10×	1×	Chance ^[C]	Avg. per chest ^[D]	Avg. # chests to search ^[E]
👁 Image Eye Armor Trim Smithing Template	—	1	—	¹⁄₁	100.0%	1.000	1.0
👁 Image Paper	2–7	—	²⁰⁄₅₂	—	89.2%	10.385	1.1
👁 Image Book	1–3	—	²⁰⁄₅₂	—	89.2%	4.615	1.1
👁 Image Enchanted Book^[F]	1	—	¹⁰⁄₅₂	—	67.8%	1.154	1.5
👁 Image Compass	1	—	¹⁄₅₂	—	10.9%	0.115	9.2
👁 Image Empty Map	1	—	¹⁄₅₂	—	10.9%	0.115	9.2

{ "chestNames": [ "stronghold-library" ], "gameVersion": "Java", "loot": { "stronghold-library": { "poolsJava": [ { "items": { "empty-map": [ 1, 1, 1 ], "enchanted-book": [ 1, 1, 10 ], "paper": [ 2, 7, 20 ], "compass": [ 1, 1, 1 ], "book": [ 1, 3, 20 ] }, "rolls": [ 2, 10 ], "totalweight": 52 }, { "items": { "eye-armor-trim-smithing-template": [ 1, 1, 1 ] }, "rolls": [ 1, 1 ], "totalweight": 1 } ], "poolsBedrockUpcoming": [], "itemDataJava": { "eye-armor-trim-smithing-template": { "itemname": "eye-armor-trim-smithing-template", "sizes": [ "—", 1 ], "sortsize": [ 0, 1 ], "sortweight": [ 0, 1 ], "weights": [ "—", "<sup>1</sup>&frasl;<sub>1</sub>" ], "avgamount": 1, "chanceany": 1 }, "empty-map": { "sortsize": [ 1, 0 ], "weights": [ "<sup>1</sup>&frasl;<sub>52</sub>", "—" ], "chanceany": 0.10885842114094657, "sizes": [ 1, "—" ], "sortweight": [ 1, 0 ], "armor": 0, "material": 0, "avgamount": 0.11538461538461539, "itemname": "empty-map" }, "book": { "itemname": "book", "sizes": [ "1–3", "—" ], "sortsize": [ 2, 0 ], "sortweight": [ 20, 0 ], "weights": [ "<sup>20</sup>&frasl;<sub>52</sub>", "—" ], "avgamount": 4.615384615384615, "chanceany": 0.8919829527458125 }, "paper": { "itemname": "paper", "sizes": [ "2–7", "—" ], "sortsize": [ 4.5, 0 ], "sortweight": [ 20, 0 ], "weights": [ "<sup>20</sup>&frasl;<sub>52</sub>", "—" ], "avgamount": 10.384615384615385, "chanceany": 0.8919829527458125 }, "compass": { "sortsize": [ 1, 0 ], "weights": [ "<sup>1</sup>&frasl;<sub>52</sub>", "—" ], "chanceany": 0.10885842114094657, "sizes": [ 1, "—" ], "sortweight": [ 1, 0 ], "armor": 0, "material": 0, "avgamount": 0.11538461538461539, "itemname": "compass" }, "enchanted-book": { "itemname": "enchanted-book", "sizes": [ 1, "—" ], "sortsize": [ 1, 0 ], "sortweight": [ 10, 0 ], "weights": [ "<sup>10</sup>&frasl;<sub>52</sub>", "—" ], "avgamount": 1.1538461538461537, "chanceany": 0.6782168579212767 } }, "superheader": "[[Stronghold]]", "poolsJavaUpcoming": [], "structure": "Stronghold", "container": "Library chest", "itemDataJavaUpcoming": [], "allRollsJavaUpcoming": [], "itemDataBedrock": { "map": { "sortsize": [ 1, 0 ], "weights": [ "<sup>5</sup>&frasl;<sub>270</sub>", "—" ], "chanceany": 0.10505089050634986, "sizes": [ 1, "—" ], "sortweight": [ 5, 0 ], "armor": 0, "material": 0, "avgamount": 0.1111111111111111, "itemname": "map" }, "eye-armor-trim-smithing-template": { "itemname": "eye-armor-trim-smithing-template", "sizes": [ "—", 1 ], "sortsize": [ 0, 1 ], "sortweight": [ 0, 1 ], "weights": [ "—", "<sup>1</sup>&frasl;<sub>1</sub>" ], "avgamount": 1, "chanceany": 1 }, "book": { "itemname": "book", "sizes": [ "1–3", "—" ], "sortsize": [ 2, 0 ], "sortweight": [ 100, 0 ], "weights": [ "<sup>100</sup>&frasl;<sub>270</sub>", "—" ], "avgamount": 4.444444444444445, "chanceany": 0.8829194743853341 }, "compass": { "sortsize": [ 1, 0 ], "weights": [ "<sup>5</sup>&frasl;<sub>270</sub>", "—" ], "chanceany": 0.10505089050634986, "sizes": [ 1, "—" ], "sortweight": [ 5, 0 ], "armor": 0, "material": 0, "avgamount": 0.1111111111111111, "itemname": "compass" }, "paper": { "itemname": "paper", "sizes": [ "2–7", "—" ], "sortsize": [ 4.5, 0 ], "sortweight": [ 100, 0 ], "weights": [ "<sup>100</sup>&frasl;<sub>270</sub>", "—" ], "avgamount": 10, "chanceany": 0.8829194743853341 }, "enchanted-book": { "itemname": "enchanted-book", "sizes": [ 1, "—" ], "sortsize": [ 1, 0 ], "sortweight": [ 60, 0 ], "weights": [ "<sup>60</sup>&frasl;<sub>270</sub>", "—" ], "avgamount": 1.3333333333333333, "chanceany": 0.7290359626173577 } }, "poolsBedrock": [ { "items": { "map": [ 1, 1, 5 ], "enchanted-book": [ 1, 1, 60 ], "paper": [ 2, 7, 100 ], "compass": [ 1, 1, 5 ], "book": [ 1, 3, 100 ] }, "rolls": [ 2, 10 ], "totalweight": 270 }, { "items": { "eye-armor-trim-smithing-template": [ 1, 1, 1 ] }, "rolls": [ 1, 1 ], "totalweight": 1 } ], "allRollsBedrockUpcoming": [], "allRollsBedrock": [ "2–10", 1 ], "itemDataBedrockUpcoming": [], "header": "Library", "allRollsJava": [ "2–10", 1 ], "link": "[[stronghold]] library", "structID": "stronghold" } } }

In Bedrock Edition, each stronghold library chest contains items drawn from 2 pools, with the following distribution:

Item	Stack Size ^[A]		Weight ^[B]		Chance ^[C]	Avg. per chest ^[D]	Avg. # chests to search ^[E]
Item	2–10×	1×	2–10×	1×	Chance ^[C]	Avg. per chest ^[D]	Avg. # chests to search ^[E]
👁 Image Eye Armor Trim Smithing Template	—	1	—	¹⁄₁	100.0%	1.000	1.0
👁 Image Paper	2–7	—	¹⁰⁰⁄₂₇₀	—	88.3%	10.000	1.1
👁 Image Book	1–3	—	¹⁰⁰⁄₂₇₀	—	88.3%	4.444	1.1
👁 Image Enchanted Book^[F]	1	—	⁶⁰⁄₂₇₀	—	72.9%	1.333	1.4
👁 Image Compass	1	—	⁵⁄₂₇₀	—	10.5%	0.111	9.5
👁 Image Map^[G]	1	—	⁵⁄₂₇₀	—	10.5%	0.111	9.5

{ "chestNames": [ "stronghold-library" ], "gameVersion": "Bedrock", "loot": { "stronghold-library": { "poolsJava": [ { "items": { "empty-map": [ 1, 1, 1 ], "enchanted-book": [ 1, 1, 10 ], "paper": [ 2, 7, 20 ], "compass": [ 1, 1, 1 ], "book": [ 1, 3, 20 ] }, "rolls": [ 2, 10 ], "totalweight": 52 }, { "items": { "eye-armor-trim-smithing-template": [ 1, 1, 1 ] }, "rolls": [ 1, 1 ], "totalweight": 1 } ], "poolsBedrockUpcoming": [], "itemDataJava": { "eye-armor-trim-smithing-template": { "itemname": "eye-armor-trim-smithing-template", "sizes": [ "—", 1 ], "sortsize": [ 0, 1 ], "sortweight": [ 0, 1 ], "weights": [ "—", "<sup>1</sup>&frasl;<sub>1</sub>" ], "avgamount": 1, "chanceany": 1 }, "empty-map": { "sortsize": [ 1, 0 ], "weights": [ "<sup>1</sup>&frasl;<sub>52</sub>", "—" ], "chanceany": 0.10885842114094657, "sizes": [ 1, "—" ], "sortweight": [ 1, 0 ], "armor": 0, "material": 0, "avgamount": 0.11538461538461539, "itemname": "empty-map" }, "book": { "itemname": "book", "sizes": [ "1–3", "—" ], "sortsize": [ 2, 0 ], "sortweight": [ 20, 0 ], "weights": [ "<sup>20</sup>&frasl;<sub>52</sub>", "—" ], "avgamount": 4.615384615384615, "chanceany": 0.8919829527458125 }, "paper": { "itemname": "paper", "sizes": [ "2–7", "—" ], "sortsize": [ 4.5, 0 ], "sortweight": [ 20, 0 ], "weights": [ "<sup>20</sup>&frasl;<sub>52</sub>", "—" ], "avgamount": 10.384615384615385, "chanceany": 0.8919829527458125 }, "compass": { "sortsize": [ 1, 0 ], "weights": [ "<sup>1</sup>&frasl;<sub>52</sub>", "—" ], "chanceany": 0.10885842114094657, "sizes": [ 1, "—" ], "sortweight": [ 1, 0 ], "armor": 0, "material": 0, "avgamount": 0.11538461538461539, "itemname": "compass" }, "enchanted-book": { "itemname": "enchanted-book", "sizes": [ 1, "—" ], "sortsize": [ 1, 0 ], "sortweight": [ 10, 0 ], "weights": [ "<sup>10</sup>&frasl;<sub>52</sub>", "—" ], "avgamount": 1.1538461538461537, "chanceany": 0.6782168579212767 } }, "superheader": "[[Stronghold]]", "poolsJavaUpcoming": [], "structure": "Stronghold", "container": "Library chest", "itemDataJavaUpcoming": [], "allRollsJavaUpcoming": [], "itemDataBedrock": { "map": { "sortsize": [ 1, 0 ], "weights": [ "<sup>5</sup>&frasl;<sub>270</sub>", "—" ], "chanceany": 0.10505089050634986, "sizes": [ 1, "—" ], "sortweight": [ 5, 0 ], "armor": 0, "material": 0, "avgamount": 0.1111111111111111, "itemname": "map" }, "eye-armor-trim-smithing-template": { "itemname": "eye-armor-trim-smithing-template", "sizes": [ "—", 1 ], "sortsize": [ 0, 1 ], "sortweight": [ 0, 1 ], "weights": [ "—", "<sup>1</sup>&frasl;<sub>1</sub>" ], "avgamount": 1, "chanceany": 1 }, "book": { "itemname": "book", "sizes": [ "1–3", "—" ], "sortsize": [ 2, 0 ], "sortweight": [ 100, 0 ], "weights": [ "<sup>100</sup>&frasl;<sub>270</sub>", "—" ], "avgamount": 4.444444444444445, "chanceany": 0.8829194743853341 }, "compass": { "sortsize": [ 1, 0 ], "weights": [ "<sup>5</sup>&frasl;<sub>270</sub>", "—" ], "chanceany": 0.10505089050634986, "sizes": [ 1, "—" ], "sortweight": [ 5, 0 ], "armor": 0, "material": 0, "avgamount": 0.1111111111111111, "itemname": "compass" }, "paper": { "itemname": "paper", "sizes": [ "2–7", "—" ], "sortsize": [ 4.5, 0 ], "sortweight": [ 100, 0 ], "weights": [ "<sup>100</sup>&frasl;<sub>270</sub>", "—" ], "avgamount": 10, "chanceany": 0.8829194743853341 }, "enchanted-book": { "itemname": "enchanted-book", "sizes": [ 1, "—" ], "sortsize": [ 1, 0 ], "sortweight": [ 60, 0 ], "weights": [ "<sup>60</sup>&frasl;<sub>270</sub>", "—" ], "avgamount": 1.3333333333333333, "chanceany": 0.7290359626173577 } }, "poolsBedrock": [ { "items": { "map": [ 1, 1, 5 ], "enchanted-book": [ 1, 1, 60 ], "paper": [ 2, 7, 100 ], "compass": [ 1, 1, 5 ], "book": [ 1, 3, 100 ] }, "rolls": [ 2, 10 ], "totalweight": 270 }, { "items": { "eye-armor-trim-smithing-template": [ 1, 1, 1 ] }, "rolls": [ 1, 1 ], "totalweight": 1 } ], "allRollsBedrockUpcoming": [], "allRollsBedrock": [ "2–10", 1 ], "itemDataBedrockUpcoming": [], "header": "Library", "allRollsJava": [ "2–10", 1 ], "link": "[[stronghold]] library", "structID": "stronghold" } } }

↑ ^a ^b The size of stacks (or for unstackable items, number) of this item on any given roll.
↑ ^a ^b The weight of this item relative to other items in the pool.
↑ ^a ^b The odds of finding any of this item in a single chest.
↑ ^a ^b The number of items expected per chest, averaged over a large number of chests.
↑ ^a ^b The average number of chests the player should expect to search to find any of this item.
↑ ^a ^b Enchantment probabilities are the same as a level-30 enchantment on an enchanting table that was able to apply treasure enchantments (except Soul Speed, Swift Sneak, and Wind Burst), and where the chance of multiple enchantments is not reduced.
↑ Named unknown map, but changed to map 0, the scale level is 1:4, Maps from the same stack are stackable, but maps that are not stacked are unstackable despite looking identical.

Data values

[edit | edit source]

ID

[edit | edit source]

Java Edition:

Structure type	Identifier
👁 EnvSprite stronghold.png: Sprite image for stronghold in Minecraft Stronghold	`stronghold`

Structure	Identifier
👁 EnvSprite stronghold.png: Sprite image for stronghold in Minecraft Stronghold	`stronghold`

Bedrock Edition:

Structure	Identifier	Translation key
👁 EnvSprite stronghold.png: Sprite image for stronghold in Minecraft Stronghold	`stronghold`	`feature.stronghold`

Config

[edit | edit source]

Java Edition:

[NBT Compound / JSON Object] Structure configuration
- [String] type: minecraft:stronghold
- Fields common to all structures see Template:Nbt inherit/structure/template

Advancements

[edit | edit source]

Icon	Advancement	In-game description	Actual requirements (if different)
👁 Image 👁 Image	Eye Spy	Follow an Eye of Ender	Enter a .

History

[edit | edit source]

Java Edition

[edit | edit source]

Java Edition Beta
July 01, 2011		Jens Bergensten shares an image of mysterious ruins that resemble a stronghold. Unlike the implemented strongholds, a large part of these ruins are above-ground.
1.8	Pre-release	Added strongholds as part of the Adventure Update. A single one generates per world. They are vacant except for regular mobs that spawn under normal conditions.
	Pre-release	Strongholds have chests in libraries and in storerooms.
	Pre-release 2 ;)	Increased stronghold count to three per world instead of one.
Java Edition
1.0.0	Beta 1.9 Prerelease 3	The End portal room was added to the stronghold. The portal frames can be filled in using eyes of ender, but does not activate.
		A pair of glass towers indicated the location of a stronghold's start (aka main entrance) and second for the portal room on top of them, extending from the top of the map to the stone bricks. This was a debug feature that Jeb forgot to remove.^[2]
		Strongholds now also have chests in corridor altars.
	Beta 1.9 Prerelease 4	Removed glass towers generating above strongholds.
		The End portal is now functional.
		Eyes of ender now properly point to strongholds.
?		The game no longer prints the coordinates of generated strongholds to the output log.
1.4.2	12w40a	Strongholds can now generate in the air in Superflat worlds with certain customization presets.
1.9	15w43a	Increased stronghold count to 128 per world, rather than 3.
		Library chests now have 2–10 stacks of items, rather than 1–4 stacks.
		Enchanted books found in library chests is now weighted to 10 rather than 2, and in single books rather than in groups of 1–5.
	16w06a	Stronghold placement formula changed.
	pre3	Eyes of ender can now point to the 125 new strongholds.
1.17	21w07a	Strongholds are no longer exposed in oceans. Instead, they get covered by the seabed.^[3]
1.18.2	22w07a	Strongholds now spawn in superflat, but not in the "Classic Flat" preset.
1.19.3	22w42a	The placement code has been changed to be more efficient, causing stronghold positions to shift.
1.19.4 Experiment Update 1.20	23w04a	Eye armor trims are now found in stronghold chests.
1.19.4 Experiment Update 1.20	23w05a	Increased the chance of eye armor trims from 4.7% to 10% in altar chests, and to 100% in library chests.
1.20	23w12a	Changes from 23w04a and 23w05a are now available without using the "Update 1.20" experimental data pack.
1.21.2	pre1	Strongholds can now generate in the pale garden biome.
1.21.4	24w44a	The changes from 1.21.2-pre1 are now available without using the "Winter Drop" experimental data pack.
1.21.6	25w20a	Removed saddles from stronghold corridor loot tables, replaced with 1–5 leather.
1.21.9	25w31a	Copper horse armor now generates in stronghold altar chests.

Bedrock Edition

[edit | edit source]

Pocket Edition Alpha
v0.9.0	May 6, 2014	Jeb posts on Instagram a photo of one section of a stronghold.
	May 8, 2014	Jeb posts another image of a stronghold, this time within the End portal room.
	build 1	Added strongholds.
	build 1	The End portal block frame exists, but the player cannot travel to the End.
v0.9.2		Strongholds are now more common.
v0.12.0		Enchanted books can now be found in stronghold library chests.
v0.15.0	build 1	Maps can be found in stronghold library chests.
Pocket Edition
1.0.0	alpha 0.17.0.1	Strongholds now generate in new chunks.
		Strongholds can now be found using eyes of ender.
		Chests now generate in stronghold storerooms.
		Ender pearls now generate in altar chests.
Bedrock Edition
1.9.0	beta 1.9.0.0	Cobblestone stairs in strongholds are replaced with stone stairs.
1.10.0	beta 1.10.0.3	Most strongholds no longer generate under village wells; they now generate under village meeting points.
	beta 1.10.0.3	Reduced chance of strongholds generating under villages.
	beta 1.10.0.4	Stone stairs in strongholds are changed back to cobblestone stairs.
1.18.0	beta 1.18.0.22	Strongholds are no longer able to generate mid-air in large caves.
1.19.80 Experiment Next Major Update	Preview 1.19.80.21	Eye armor trims are now found in stronghold chests.
1.20.70	Preview 1.20.70.22	Strongholds now always generate with an End portal room.
1.21.111	Preview 1.21.110.22	Copper horse armor now generates in stronghold altar chests.
26.30	Preview 26.30.25	Added iron doors and stone buttons for hallways in strongholds, to match Java Edition.

Legacy Console Edition

[edit | edit source]

Legacy Console Edition
Xbox 360	Xbox One	PS3	PS4	PS Vita	Wii U	Switch
TU5	CU1	1.00	1.00	1.00	Patch 1	1.0.1	Added strongholds.
TU25	CU14	1.17	1.17	1.17			Strongholds can now generate in the air in Superflat worlds with certain customization presets.
TU25	CU14	1.17	1.17	1.17			It is now possible to change the amount of strongholds that generate in a Superflat world. This means it is possible to have up to 3 strongholds instead of only 1.
TU60	CU51	1.64	1.64	1.64	Patch 30	1.0.11	Stronghold chests can now generate emeralds and ink sacs.

New Nintendo 3DS Edition

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New Nintendo 3DS Edition
0.1.0							Added strongholds.

👁 The first image of a stronghold that Jeb posted

The first image of a stronghold that Jeb posted
👁 The first image of a stronghold that Notch posted

The first image of a stronghold that Notch posted
👁 Stronghold markers in Beta 1.9 Prerelease 3

Stronghold markers in Beta 1.9 Prerelease 3
👁 A stronghold generated on Superflat using Customization GUI in 12w40a and 12w40b.

A stronghold generated on Superflat using Customization GUI in 12w40a and 12w40b.
👁 The side view of an uncovered stronghold

The side view of an uncovered stronghold
👁 Overhead view of an uncovered stronghold

Overhead view of an uncovered stronghold
👁 Top view of an uncovered stronghold

Top view of an uncovered stronghold

Issues

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Issues relating to "Stronghold" are maintained on the bug tracker. Issues should be reported and viewed there.

Trivia

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There are exactly 233 bookshelves in a large library, yielding 699 books if mined without Silk Touch, which is 10 stacks plus 59 left over.
Along with some other older structures, strongholds do not generate with air inside them.
As of Java Edition 1.16, all world seeds that have a pre-activated End portal in the first ring have been found.^[4]

Gallery

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External links

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Building Blocks: Stronghold – Minecraft.net on July 4, 2024

Notes

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↑ In superflat worlds, strongholds generate with the maximum number of rooms possible.
↑ If the portal is lit.
↑ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k
For simplicity, this number assumes the rooms are composed solely of stone bricks. However, the actual composition is as follows:
- 45% 👁 Image
  Stone Bricks
- 30% 👁 Image
  Mossy Stone Bricks
- 20% 👁 Image
  Cracked Stone Bricks
- 5% 👁 Image
  Infested Stone Bricks
↑ Cite error: Invalid <ref> tag; no text was provided for refs named irondoors
↑ This chest uses the altar chest loot. This loot is found in loot_tables/chests/stronghold_corridor.
↑ ^a ^b ^c ^d Unlike other rooms, this structure only generates with stone bricks. It does not include mossy stone bricks, cracked stone bricks, and infested stone bricks.
↑ This chest uses the storeroom chest loot. This loot is found in loot_tables/chests/stronghold_crossing.
↑ ^a ^b This chest uses the library chest loot. This loot is found in loot_tables/chests/stronghold_library.

References

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↑ MC-140209 – Cracked and mossy stone brick infested blocks/monster eggs do not generate in strongholds – resolved as "Invalid".
↑ "Ah LOL! I forgot to remove the debug pillars from the strongholds. Oh well, it's not severe enough for another update" – @jeb_ (Jens Bergensten) on X (formerly Twitter), October 6, 2011
↑ MC-216191 – resolved as "Works As Intended".
↑ "1.16 12-eye seeds with spawn locations Latest" by hube12 – github.com, September 14, 2020.

Navigation

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World features

👁 EnvSprite hoodoo.png: Sprite image for hoodoo in Minecraft
Terrain features

👁 Image
Overworld

Terrain	👁 Image Canyon 👁 Image Carver cave 👁 Image Cliff 👁 Image Floating island 👁 Image Hill 👁 Image Mountains 👁 Image Noise cave
Surface	👁 Image Surface layers 👁 Image Erosion 👁 Image Slopes Strip 👁 Image Terracotta 👁 Image Marshland 👁 Image Hoodoo 👁 Image Iceberg
Water bodies	👁 Image Aquifer 👁 Image Sea level 👁 Image Ocean 👁 Image River
Others	👁 Image Ore vein

👁 Image
The Nether

👁 Image
The End

Removed

Java Edition only	👁 Image Monolith

👁 EnvSprite mineshaft.png: Sprite image for mineshaft in Minecraft
Structures

👁 Image
Overworld

👁 Image
Ruined Portal

Surface	👁 Image Desert Pyramid 👁 Image Igloo 👁 Image Jungle Pyramid 👁 Image Pillager Outpost 👁 Image Swamp Hut 👁 Image Village 👁 Image Farm 👁 Image Woodland Mansion 👁 Image Abandoned Camp^{[upcoming: Third Drop 2026]}
Underwater	👁 Image Ocean Monument 👁 Image Ocean Ruins 👁 Image Shipwreck
Underground	👁 Image Ancient City 👁 Image Buried Treasure 👁 Image Mineshaft 👁 Image 👁 Image Trail Ruins 👁 Image Trial Chambers