Ocean Ruins

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
Cold underwater ruins generate in 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
Most structures contain a hidden treasure chest with loot inside.

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, wood 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  folder in minecraft.jar. To do so, set a structure block to Load mode, enter, and press LOAD.

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

Gallery
Unterwasserruine Ruines sous-marines Underwater ruins 水下遗迹