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 contain loot for specifically either a small or large sized 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_brick_1 A chunk-sized structure with a mostly gravel floor and a large, multidimensional arch. These 3 generate combined with each other. 239
Gravel

97
Stone Bricks

8
Chiseled Stone Bricks

4
Prismarine

4
Magma Block

1
Sand

1
Chest
(random loot)

Big cracked 1.png
big_cracked_1 215
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_mossy_1 226
Gravel

97
Mossy Stone Bricks

8
Chiseled Stone Bricks

4
Prismarine

3
Magma Block

2
Sea Lantern

1
Sand

1
Chest
(random loot)

big_brick_2 A chunk-sized structure consisting of two connected rooms, one taller than the other. These 3 generate combined with each other. 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)

Big mossy 2.png
big_cracked_2 209
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_mossy_2 209
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_brick_3 A chunk-sized structure consisting of two large unconnected rooms, one much taller than the other and having an open top. These 3 generate combined with each other. 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_cracked_3 301
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_mossy_3 301
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_brick_8 A chunk-sized structure with little height, looks similar to a floorplan of a large building. Remnants of wood floors are present. These 3 generate combined with each other. 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_cracked_8 224
Gravel

88
Cracked Stone Bricks

9
Spruce Planks

8
Dark Oak Planks

8
Sand

3
Magma Block

1
Chest
(random loot)

big_mossy_8 221
Gravel

88
Mossy Stone Bricks

11
Sand

9
Spruce Planks

8
Dark Oak Planks

3
Magma Block

1
Chest
(random loot)

big_warm_4 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_warm_5 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 warm 5.png
big_warm_6 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 warm 6.png
big_warm_7 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

Big warm 7.png
brick_1 A small building without a roof. These 3 generate combined with each other. 37
Stone Bricks

36
Gravel

17
Mossy Cobblestone

1
Sea Lantern

1
Chest
(random loot)

Ruin 1.png
cracked_1 36
Gravel

35
Cracked Stone Bricks

17
Mossy Cobblestone

1
Sea Lantern

1
Chest
(random loot)

mossy_1 38
Gravel

32
Mossy Stone Bricks

19
Mossy Cobblestone

1
Magma Block

1
Sea Lantern

brick_2 A small structure with not much height. Consists of randomly placed stone bricks and mossy cobblestone. These 3 generate combined with each other. 39
Gravel

9
Stone Bricks

8
Mossy Cobblestone

2
Magma Block

1
Chest
(random loot)

Brick 2.png
cracked_2 30
Gravel

9
Cracked Stone Bricks

6
Mossy Cobblestone

2
Magma Block

1
Chest
(random loot)

mossy_2 37
Gravel

10
Mossy Cobblestone

9
Mossy Stone Bricks

2
Magma Block

1
Chest
(random loot)

brick_3 A small structure featuring a stone brick arch. These 3 generate combined with each other. 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
cracked_3 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)

mossy_3 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)

brick_4 A small structure featuring a small, domed building. These 3 generate combined with each other. 71
Stone Bricks

30
Gravel

4
Dark Oak Planks

3
Sand

2
Spruce Planks

1
Magma Block

1
Chest
(random loot)

Ruin 4.png
cracked_4 71
Cracked Stone Bricks

35
Gravel

4
Sand

1
Dark Oak Planks

1
Stone Bricks

1
Chest
(random loot)

mossy_4 70
Mossy Stone Bricks

27
Gravel

6
Dark Oak Planks

6
Sand

4
Magma Block

2
Spruce Planks

1
Chest
(random loot)

brick_5 A small structure with a small, cuboid building. These 3 generate combined with each other. 39
Gravel

35
Stone Bricks

9
Polished Granite

8
Chiseled Stone Bricks

1
Chest
(random loot)

Cracked 5.png
cracked_5 37
Gravel

35
Cracked Stone Bricks

9
Polished Granite

8
Chiseled Stone Bricks

1
Chest
(random loot)

mossy_5 39
Gravel

35
Mossy Stone Bricks

9
Polished Granite

8
Chiseled Stone Bricks

1
Chest
(random loot)

brick_6 A small structure that looks similar to a castle tower. These 3 generate combined with each other. 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)

Mossy 6.png
cracked_6 58
Cracked Stone Bricks

41
Gravel

24
Stone Brick Stairs

2
Chiseled Stone Bricks

2
Polished Granite

1
Chest
(random loot)

mossy_6 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)

brick_7 A small structure that looks very similar to brick_5, cracked_5 and mossy_5, although with a slightly taller roof. These 3 generate combined with each other. 40
Stone Bricks

35
Gravel

6
Mossy Cobblestone

4
Chiseled Stone Bricks

1
Magma Block

1
Polished Granite

1
Chest
(random loot)

Brick 7.png
cracked_7 40
Cracked Stone Bricks

35
Gravel

6
Mossy Cobblestone

4
Chiseled Stone Bricks

1
Magma Block

1
Polished Granite

1
Chest
(random loot)

mossy_7 40
Mossy Stone Bricks

35
Gravel

6
Mossy Cobblestone

4
Chiseled Stone Bricks

1
Magma Block

1
Polished Granite

1
Chest
(random loot)

brick_8 A small structure that looks similar to an igloo, although made of stone materials. These 3 generate combined with each other. 41
Stone Bricks

25
Gravel

11
Chiseled Stone Bricks

5
Dark Oak Planks

2
Magma Block

1
Chest
(random loot)

Ruin 8.png
cracked_8 41
Cracked Stone Bricks

28
Gravel

11
Chiseled Stone Bricks

5
Dark Oak Planks

1
Magma Block

1
Chest
(random loot)

mossy_8 41
Mossy Stone Bricks

27
Gravel

11
Chiseled Stone Bricks

3
Dark Oak Planks

1
Magma Block

1
Obsidian

1
Chest
(random loot)

warm_1 A small structure with an open dome. Looks like a smaller version of big_warm_7. 75
Cut Sandstone

47
Sand

7
Polished Granite

1
Chest
(random loot)

Warm 1.png
warm_2 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
warm_3 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)

Warm 3.png
warm_4 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)

Warm 4.png
warm_5 A small structure that is essentially a roof with multiple supports. 37
Sand

34
Cut Sandstone

1
Chest
(random loot)

Warm ruin 5.png
warm_6 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)

Warm 6.png
warm_7 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
warm_8 A thin wall with multiple "windows". 56
Sand

19
Cut Sandstone

5
Magma Block

4
Sandstone Stairs

1
Chest
(random loot)

Warm 8.png

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
1–410314.03281.0%1.2

Wheat
2–310314.03281.0%1.2

Gold Nugget
1–310313.22681.0%1.2

Buried Treasure Map
110230.43543.5%2.3

Enchanted Book
[note 1]
15230.21721.7%4.6

Enchanted Fishing Rod
[note 1]
15230.21721.7%4.6

Emerald
11310.16114.9%6.7

Leather Tunic
11230.0434.3%23.0

Golden Apple
11230.0434.3%23.0

Golden Helmet
11230.0434.3%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
1–410284.46484.2%1.2

Wheat
2–310284.46484.2%1.2

Rotten Flesh
15280.89359.6%1.7

Buried Treasure Map
15120.41741.7%2.4

Enchanted Fishing Rod
[note 1]
15120.41741.7%2.4

Stone Axe
12280.35730.2%3.3

Emerald
11280.17916.4%6.1

Leather Tunic
11120.0838.3%12.0

Golden Helmet
11120.0838.3%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 ruinNoNoYesNo20G

History[edit]

The first official image of underwater ruins.
The same image, brightened for clarity.
Java Edition
December 27, 2017A 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, 2018Minecraft'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
TU681.76Patch 38Added 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