Underwater Ruin

The Underwater Ruin is a default MC Structure that spawns in the Oceanic and Beaches biomes.

Loot

Underwater Ruin Big

Each underwater ruin big chest contains items drawn from 3 pools (one per category), with the following distribution:

Category	Item	Stack size		Weight		Chance	Avg. per chest
		1x	2-3x	1x	2-3x
Held Items	Mystic Water	1	—	5/24	—	20.8%	0.208
Held Items	Splash Plate	1	—	1/24	—	4.2%	0.042
Held Items	Shell Bell	1	—	3/24	—	12.5%	0.125
Treasure	Pearl	—	1–2	—	5/29	37.4%	0.647
Treasure	Big Pearl	—	0–1	—	1/29	8.4%	0.043
Treasure	Pearl String	—	0–2	—	3/29	23.8%	0.259
Treasure	Shoal Shell	—	1–5	—	7/29	49.4%	1.810
Treasure	Shoal Salt	—	1–5	—	7/29	49.4%	1.810
Treasure	Water Stone	—	1	—	1/29	8.4%	0.086
Vanilla	Prismarine Shard	—	1–5	—	10/40	50.8%	1.875
Vanilla	Prismarine Crystals	—	1–5	—	10/40	50.8%	1.875
Vanilla	Nautilus Shell	—	1–2	—	7/40	37.9%	0.656
Vanilla	Emerald	—	1–2	—	3/40	17.6%	0.281
Vanilla	Enchanted Fishing Rod	—	1	—	5/40	28.2%	0.313
Vanilla	Enchanted Book	—	1	—	5/40	28.2%	0.313
Vanilla	Map	—	1	—	5/40	28.2%	0.313

Underwater Ruin Small

Each underwater ruin small chest contains items drawn from 2 pools (one per category), with the following distribution:

Category	Item	Stack size	Weight	Chance	Avg. per chest
		2-3x	2-3x
Treasure	Pearl	1–2	5/29	37.4%	0.647
Treasure	Big Pearl	0–1	1/29	8.4%	0.043
Treasure	Pearl String	0–2	3/29	23.8%	0.259
Treasure	Shoal Shell	1–5	7/29	49.4%	1.810
Treasure	Shoal Salt	1–5	7/29	49.4%	1.810
Treasure	Water Stone	1	1/29	8.4%	0.086
Vanilla	Prismarine Shard	1–5	10/40	50.8%	1.875
Vanilla	Prismarine Crystals	1–5	10/40	50.8%	1.875
Vanilla	Nautilus Shell	1–2	7/40	37.9%	0.656
Vanilla	Emerald	1–2	3/40	17.6%	0.281
Vanilla	Enchanted Fishing Rod	1	5/40	28.2%	0.313
Vanilla	Map	1	5/40	28.2%	0.313