Underwater ruins

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Underwater ruins
Underwater ruin cold.pngUnderwater ruin warm.png
Biome(s)
Consists of

See Structure

Can generate
post-generation

No

First appearances

See History

Nathan Adams Mojang avatar.png We've ruined the game. Again.
Nathan Adams[1]
Tom Stone Mojang avatar.png Imagine swimming in the deep oceans among kelp, seagrass and lots of fish, and suddenly you find a ruined, overgrown village! What's the story of the village? Can you find treasures in there? Maybe you can rebuild the ruins to be your very own ocean base? It's all up to the players!
Tom Stone[2]

Underwater ruins are oceanic structures primarily composed of stone bricks or sandstone. They come in many different sizes varying from large villages to single ruined huts. They come in cold and warm variants.

Generation[edit]

Cold underwater ruins generate in normal, cold, and frozen ocean biomes, as well as their deep variants. They are composed of stone materials.

Warm underwater ruins generate in warm, lukewarm, and deep lukewarm ocean biomes, and are composed of sandstone and stone materials.

Although most underwater ruins generate underwater, they will sometimes generate on land.

Structure[edit]

All but two of the structures will contain a loot chest with loot inside. The chest will either be a small or large chest depending on the size and type of the underwater ruin structure and may be buried by some sort of material such as gravel and sand.

Cold underwater ruins are primarily composed of stone bricks and gravel, and will also contain prismarine, sand, magma blocks, sea lanterns, polished granite, glazed terracotta, bricks, planks, cobblestone, mossy cobblestone, stone brick stairs, obsidian, and/or a chest with loot in it. Warm underwater ruins are primarily composed of sand and sandstone, and will also contain polished granite, polished diorite, sea lanterns, magma blocks, gravel, terracotta, sandstone stairs, and/or a loot chest.

The shape and size of underwater ruins varies greatly, and they will often generate together in groups to create ruined villages.

One may use structure blocks to manually load the pieces of the ruins from the /data/structures/underwater_ruin folder in minecraft.jar. To do so, set a structure block to Load mode, enter underwater_ruin/structure_name, and press LOAD.

Ruins naturally generate with their Structure Integrity reduced

The following is an incomplete table of the structures with their filenames, descriptions and what they consist of:

Structure name Description Consists of Images
big_ruin1_brick A chunk-sized structure with a mostly gravel floor and a large, multidimensional arch. Generates combines with big_ruin1_cracked and big_ruin1_mossy 239
Gravel

97
Stone Bricks

8
Chiseled Stone Bricks

4
Prismarine

4
Magma Block

1
Sand

1
Chest
(random loot)

big_ruin1_cracked A chunk-sized structure with a mostly gravel floor and a large, multidimensional arch. Generates combined with big_ruin1_brick and big_ruin1_mossy 215
Gravel

97
Cracked Stone Bricks

8
Chiseled Stone Bricks

5
Prismarine

4
Magma Block

2
Sea Lantern

1
Sand

1
Chest
(random loot, can have ocean explorer map)

big_ruin1_mossy A chunk-sized structure with a mostly gravel floor and a large, multidimensional arch. Generates combined with big_ruin1_brick and big_ruin1_cracked 226
Gravel

97
Mossy Stone Bricks

8
Chiseled Stone Bricks

4
Prismarine

3
Magma Block

2
Sea Lantern

1
Sand

1
Chest
(random loot)

big_ruin2_brick A chunk-sized structure consisting of two connected rooms, one taller than the other. Generates combined with big_ruin2_cracked and big_ruin2_mossy 209
Stone Bricks

192
Gravel

39
Chiseled Stone Bricks

15
Polished Granite

6
Prismarine

4
Purple Glazed Terracotta

2
Sea Lantern

1
Magma Block

1
Chest
(random loot)

Glazed Terracotta naturally generating in the ruins.png
big_ruin2_cracked A chunk-sized structure consisting of two connected rooms, one taller than the other. Generates combined with big_ruin2_brick and big_ruin2_mossy 209
Cracked Stone Bricks

206
Gravel

39
Chiseled Stone Bricks

15
Polished Granite

5
Magma Block

5
Prismarine

4
Purple Glazed Terracotta

2
Sea Lantern

1
Chest
(random loot)

big_ruin2_mossy A chunk-sized structure consisting of two connected rooms, one taller than the other. Generates combined with big_ruin2_brick and big_ruin2_cracked 209
Mossy Stone Bricks

199
Gravel

39
Chiseled Stone Bricks

15
Polished Granite

7
Prismarine

4
Purple Glazed Terracotta

3
Magma Block

2
Sea Lantern

1
Chest
(random loot)

big_ruin3_brick A chunk-sized structure consisting of two large unconnected rooms, one much taller than the other and having an open top. Generates combined with big_ruin3_cracked and big_ruin3_mossy 301
Stone Bricks

205
Gravel

55
Chiseled Stone Bricks

17
Polished Granite

10
Bricks

6
Sand

2
Magma Block

2
Sea Lantern

1
Chest
(random loot)

Big ruin 3.png
big_ruin3_cracked A chunk-sized structure consisting of two large unconnected rooms, one much taller than the other and having an open top. Generates combined with big_ruin3_brick and big_ruin3_mossy 301
Cracked Stone Bricks

217
Gravel

55
Chiseled Stone Bricks

17
Polished Granite

10
Bricks

2
Sand

2
Sea Lantern

1
Magma Block

1
Chest
(random loot)

big_ruin3_mossy A chunk-sized structure consisting of two large unconnected rooms, one much taller than the other and having an open top. Generates combined with big_ruin3_brick and big_ruin3_cracked 301
Mossy Stone Bricks

208
Gravel

55
Chiseled Stone Bricks

17
Polished Granite

10
Bricks

8
Sand

2
Magma Block

2
Sea Lantern

1
Chest
(random loot)

big_ruin8_brick A chunk-sized structure with little height, looks similar to a floorplan of a large building. Remnants of wood floors are present. Generates combined with big_ruin8_cracked and big_ruin8_mossy 210
Gravel

88
Stone Bricks

12
Sand

9
Spruce Planks

8
Dark Oak Planks

3
Magma Block

1
Chest
(random loot)

Big ruin 8.png
big_ruin8_cracked A chunk-sized structure with little height, looks similar to a floorplan of a large building. Remnants of wood floors are present. Generates combined with big_ruin8_brick and big_ruin8_mossy 224
Gravel

88
Cracked Stone Bricks

9
Spruce Planks

8
Dark Oak Planks

8
Sand

3
Magma Block

1
Chest
(random loot)

big_ruin8_mossy A chunk-sized structure with little height, looks similar to a floorplan of a large building. Remnants of wood floors are present. Generates combined with big_ruin8_brick and big_ruin8_cracked 221
Gravel

88
Mossy Stone Bricks

11
Sand

9
Spruce Planks

8
Dark Oak Planks

3
Magma Block

1
Chest
(random loot)

big_ruin_warm4 A chunk-sized structure featuring a large sandstone arch. 220
Sand

152
Cut Sandstone

24
Polished Granite

18
Chiseled Sandstone

4
Sea Lantern

3
Magma Block

1
Chest
(random loot)

Big warm ruin 4.png
big_ruin_warm5 A chunk-sized structure with a tall tower in the center. It looks similar to a fountain 222
Sand

43
Cut Sandstone

12
Sandstone

8
Polished Granite

5
Magma Block

4
Polished Diorite

2
Sea Lantern

1
Chest
(random loot)

big_ruin_warm6 A chunk-sized structure featuring 4 sandstone arches 219
Sand

129
Cut Sandstone

4
Chiseled Sandstone

4
Magma Block

2
Sandstone

2
Sea Lantern

1
Chest
(random loot)

big_ruin_warm7 A chunk-sized structure with an open sandstone dome 202
Sand

100
Cut Sandstone

24
Gravel

8
Chiseled Sandstone

4
Polished Granite

2
Magma Block

2
Sandstone

1
Sea Lantern

ruin1_brick A small building without a roof. Generates combined with ruin1_cracked and ruin1_mossy 37
Stone Bricks

36
Gravel

17
Mossy Cobblestone

1
Sea Lantern

1
Chest
(random loot)

Ruin 1.png
ruin1_cracked A small building without a roof. Generates combined with ruin1_brick and ruin1_mossy 36
Gravel

35
Cracked Stone Bricks

17
Mossy Cobblestone

1
Sea Lantern

1
Chest
(random loot)

ruin1_mossy A small building without a roof or a loot chest. Generates combined with ruin1_brick and ruin1_cracked 38
Gravel

32
Mossy Stone Bricks

19
Mossy Cobblestone

1
Magma Block

1
Sea Lantern

ruin2_brick A small structure with not much height. Consists of randomly placed stone bricks and mossy cobblestone. Generates combined with ruin2_cracked and ruin2_mossy. 39
Gravel

9
Stone Bricks

8
Mossy Cobblestone

2
Magma Block

1
Chest
(random loot)

ruin2_cracked A small structure with not much height. Consists of randomly placed stone bricks and mossy cobblestone. Generates combined with ruin2_brick and ruin2_mossy. 30
Gravel

9
Cracked Stone Bricks

6
Mossy Cobblestone

2
Magma Block

1
Chest
(random loot)

ruin2_mossy A small structure with not much height. Consists of randomly placed stone bricks and mossy cobblestone. Generates combined with ruin2_brick and ruin2_cracked. 37
Gravel

10
Mossy Cobblestone

9
Mossy Stone Bricks

2
Magma Block

1
Chest
(random loot)

ruin3_brick A small structure featuring a stone brick arch. Generates combined with ruin3_cracked ruin3_mossy 30
Gravel

20
Stone Bricks

2
Chiseled Stone Bricks

2
Magma Block

2
Stone Brick Stairs

1
Cobblestone

1
Sand

1
Chest
(random loot)

Ruin 3.png
ruin3_cracked A small structure featuring a stone brick arch. Generates combined with ruin3_brick ruin3_mossy 35
Gravel

20
Cracked Stone Bricks

5
Sand

2
Stone Brick Stairs

1
Chiseled Stone Bricks

1
Cobblestone

1
Magma Block

1
Obsidian

1
Chest
(random loot)

ruin3_mossy A small structure featuring a stone brick arch. Generates combined with ruin3_brick ruin3_cracked 30
Gravel

21
Mossy Stone Bricks

4
Sand

2
Stone Brick Stairs

1
Chiseled Stone Bricks

1
Cobblestone

1
Magma Block

1
Chest
(random loot)

ruin4_brick A small structure featuring a small, domed building. Generates combined with ruin4_cracked and ruin4_mossy 71
Stone Bricks

30
Gravel

4
Dark Oak Planks

3
Sand

2
Spruce Planks

1
Magma Block

1
Chest
(random loot)

Ruin 4.png
ruin4_cracked A small structure featuring a small, domed building. Generates combined with ruin4_brick and ruin4_mossy 71
Cracked Stone Bricks

35
Gravel

4
Sand

1
Dark Oak Planks

1
Stone Bricks

1
Chest
(random loot)

ruin4_mossy A small structure featuring a small, domed building. Generates combined with ruin4_brick and ruin4_cracked 70
Mossy Stone Bricks

27
Gravel

6
Dark Oak Planks

6
Sand

4
Magma Block

2
Spruce Planks

1
Chest
(random loot)

ruin5_brick A small structure with a small, cuboid building. Generates combined with ruin5_cracked and ruin5_mossy 39
Gravel

35
Stone Bricks

9
Polished Granite

8
Chiseled Stone Bricks

1
Chest
(random loot)

ruin5_cracked A small structure with a small, cuboid building. Generates combined with ruin5_brick and ruin5_mossy 37
Gravel

35
Cracked Stone Bricks

9
Polished Granite

8
Chiseled Stone Bricks

1
Chest
(random loot)

ruin5_mossy A small structure with a small, cuboid building. Generates combined with ruin5_brick and ruin5_cracked 39
Gravel

35
Mossy Stone Bricks

9
Polished Granite

8
Chiseled Stone Bricks

1
Chest
(random loot)

ruin6_brick A small structure that looks similar to a castle tower. Generates combined with ruin6_cracked and ruin6_mossy 58
Stone Bricks

41
Gravel

24
Stone Brick Stairs

3
Mossy Cobblestone

2
Chiseled Stone Bricks

2
Polished Granite

1
Magma Block

1
Chest
(random loot)

ruin6_cracked A small structure that looks similar to a castle tower. The inside is filled with gravel. Generates combined with ruin6_brick and ruin6_mossy 58
Cracked Stone Bricks

41
Gravel

24
Stone Brick Stairs

2
Chiseled Stone Bricks

2
Polished Granite

1
Chest
(random loot)

ruin6_mossy A small structure that looks similar to a castle tower. Generates combined with ruin6_brick and ruin6_cracked 58
Mossy Stone Bricks

43
Gravel

24
Stone Brick Stairs

3
Mossy Cobblestone

2
Chiseled Stone Bricks

2
Polished Granite

1
Magma Block

1
Chest
(random loot)

ruin7_brick A small structure that looks very similar to ruin5_brick, although with a slightly taller roof. Generates combined with ruin7_cracked and ruin7_mossy 40
Stone Bricks

35
Gravel

6
Mossy Cobblestone

4
Chiseled Stone Bricks

1
Magma Block

1
Polished Granite

1
Chest
(random loot)

ruin7_cracked A small structure that looks very similar to ruin5_cracked, although with a slightly taller roof. Generates combined with ruin7_brick and ruin7_mossy 40
Cracked Stone Bricks

35
Gravel

6
Mossy Cobblestone

4
Chiseled Stone Bricks

1
Magma Block

1
Polished Granite

1
Chest
(random loot)

ruin7_mossy A small structure that looks very similar to ruin5_mossy, although with a slightly taller roof. Generates combined with ruin7_brick and ruin7_cracked 40
Mossy Stone Bricks

35
Gravel

6
Mossy Cobblestone

4
Chiseled Stone Bricks

1
Magma Block

1
Polished Granite

1
Chest
(random loot)

ruin8_brick A small structure that looks similar to an igloo, although made of stone materials. Generates combined with ruin8_cracked and ruin8_mossy 41
Stone Bricks

25
Gravel

11
Chiseled Stone Bricks

5
Dark Oak Planks

2
Magma Block

1
Chest
(random loot)

Ruin 8.png
ruin8_cracked A small structure that looks similar to an igloo, although made of stone materials. Generates combined with ruin8_brick and ruin8_mossy 41
Cracked Stone Bricks

28
Gravel

11
Chiseled Stone Bricks

5
Dark Oak Planks

1
Magma Block

1
Chest
(random loot)

ruin8_mossy A small structure that looks similar to an igloo, although made of stone materials. Generates combined with ruin8_brick and ruin8_cracked 41
Mossy Stone Bricks

27
Gravel

11
Chiseled Stone Bricks

3
Dark Oak Planks

1
Magma Block

1
Obsidian

1
Chest
(random loot)

ruin_warm1 A small structure with an open dome. Looks like a smaller version of big_ruin_warm7 75
Cut Sandstone

47
Sand

7
Polished Granite

1
Chest
(random loot)

ruin_warm2 A small hut with a large opening in the front 42
Sand

36
Cut Sandstone

2
Light Blue Terracotta

2
Polished Granite

1
Chest
(random loot)

Warm ruin 2.png
ruin_warm3 A small hut that has an entrance on all sides 36
Sand

24
Cut Sandstone

13
Polished Granite

2
Magma Block

1
Chest
(random loot)

ruin_warm4 A small structure featuring two small arches 42
Sand

28
Cut Sandstone

10
Sandstone Stairs

2
Chiseled Sandstone

1
Magma Block

1
Chest
(random loot)

ruin_warm5 A small structure that is essentially a roof with multiple supports 37
Sand

34
Cut Sandstone

1
Chest
(random loot)

Warm ruin 5.png
ruin_warm6 A small hut that looks similar to the ruin5 series, although made of sand materials. It is filled with sand and the entrance is blocked off 48
Sand

39
Cut Sandstone

4
Light Blue Terracotta

1
Magma Block

1
Chest
(random loot)

ruin_warm7 A small structure that looks similar to the ruin2 series, although made of sand materials. 34
Sand

6
Cut Sandstone

3
Polished Granite

1
Chest
(random loot)

Warm ruin 7.png
ruin_warm8 A thin wall with multiple “windows” 56
Sand

19
Cut Sandstone

5
Magma Block

4
Sandstone Stairs

1
Chest
(random loot)

Loot[edit]

See also: Chest loot

Each underwater ruin big chest contains items drawn from 2 pools, with the following distribution:

Stack Size Weight # Items Chance # Chests
2–8× 2–8×

Coal
1–4 1031 4.032 81.0% 1.2

Wheat
2–3 1031 4.032 81.0% 1.2

Gold Nugget
1–3 1031 3.226 81.0% 1.2

Buried Treasure Map
1 1023 0.435 43.5% 2.3

Enchanted Book
[note 1]
1 523 0.217 21.7% 4.6

Enchanted Fishing Rod
[note 1]
1 523 0.217 21.7% 4.6

Emerald
1 131 0.161 14.9% 6.7

Leather Tunic
1 123 0.043 4.3% 23.0

Golden Apple
1 123 0.043 4.3% 23.0

Golden Helmet
1 123 0.043 4.3% 23.0

Each underwater ruin small chest contains items drawn from 2 pools, with the following distribution:

Stack Size Weight # Items Chance # Chests
2–8× 2–8×

Coal
1–4 1028 4.464 84.2% 1.2

Wheat
2–3 1028 4.464 84.2% 1.2

Rotten Flesh
1 528 0.893 59.6% 1.7

Buried Treasure Map
1 512 0.417 41.7% 2.4

Enchanted Fishing Rod
[note 1]
1 512 0.417 41.7% 2.4

Stone Axe
1 228 0.357 30.2% 3.3

Emerald
1 128 0.179 16.4% 6.1

Leather Tunic
1 112 0.083 8.3% 12.0

Golden Helmet
1 112 0.083 8.3% 12.0
  1. a b c All enchantments are equally probable, except treasure enchantments, and any level of the enchantment is equally probable.

Achievements[edit]

Icon Achievement In-game description Actual requirements (if different) Availability Xbox points earned Trophy type (PS)
Xbox PS Bedrock Nintendo

Atlantis? Find an underwater ruin No No Yes No 20G

History[edit]

The first official image of underwater ruins.
The same image, brightened for clarity.
Official release
December 27, 2017 A picture was released on Minecraft.net, which shows a faint underwater ruins structure in the top right corner, more visible when the image is brightened.
February 15, 2018 Minecraft's Instagram channel posted a video clip showing the underwater ruins that were to be added in the Update Aquatic.
1.13 18w09a Added underwater ruins.
18w10a Buried treasure explorer maps now generate in the chests of underwater ruins.
18w16a Drowned now spawn in underwater ruins.
Bedrock Edition
1.4 beta 1.2.20.1 Added underwater ruins.
Education Edition
1.4.0 Added underwater ruins.
Legacy Console Edition
TU68 1.76 Patch 38 Added underwater ruins.

Issues[edit]

Issues relating to "Underwater ruins" are maintained on the bug tracker. Report issues there.

Trivia[edit]

An underwater ruin in Bedrock Edition that generated completely on land. Note the waterlogged chest and the water block above it that hasn’t been updated.
An underwater ruin in Java Edition that also generated completely on land. Note that the loot chest is not waterlogged and doesn’t have a water block on it.
  • In the Bedrock Edition, the loot chest of underwater ruins will generate waterlogged as well as having a water block above it. This can be seen in the image on the right. It is unknown whether it is intentional that water is part of the ruin's structure. [3]
    • In the Java Edition though, this is not the case, according to the second picture. [4]

Gallery[edit]

Odd generation[edit]

References[edit]

  1. "Minecraft Snapshot 18w09a" – Minecraft.net, March 01, 2018
  2. "How We Ruin-ed Minecraft" – Minecraft.net, March 5, 2018
  3. MCPE-36793
  4. MC-136156
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