Minecraft Ocean Ruin Finder
Easily find all types of Ocean Ruins (Underwater Ruins) in your Minecraft world on an interactive map.
Drop level.dat anywhere...

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About Ocean Ruins & Legend
Ocean Ruins, also known as Underwater Ruins, are structures primarily composed of Stone Bricks or Sandstone variants. Introduced in Minecraft 1.13 (Java), they generate in Ocean and Beach biomes.
These ruins come in various sizes, sometimes forming clusters, and can contain chests with loot such as coal, wheat, emeralds, enchanted fishing rods, or even buried treasure maps. They are often guarded by Drowned mobs.
Ruins generating in colder ocean biomes are typically made of Stone Bricks, while those in warmer oceans are made of Sandstone.
- Cold Ruins (Blue Markers):
- Large Ruin Cluster
- Small Ruin / Single Large Ruin
- Warm Ruins (Red Markers):
- Large Ruin Cluster
- Small Ruin / Single Large Ruin
This finder shows the coordinates (X, Z) where Ocean Ruins attempt to generate. The color and shade indicate the type (Warm/Cold) and size/cluster.
How to Use
- Enter Seed: Type your Minecraft world seed (or load from `level.dat`).
- Select Version: Choose the correct Minecraft version (1.13+ Java).
- Explore Map: The map will load, highlighting potential Ocean Ruin locations with colored markers (see legend above).
- Drag: Click and drag to move.
- Zoom: Use mouse wheel or zoom slider.
- Go To Coordinates: Enter X and Z block coordinates.
- Get Ruin Coordinates: Interact with a highlighted marker (hover/click/tap) to see its approximate coordinates below the map.
- Toggle Grid: Use the "Grid Lines" checkbox.
Map Controls Summary:
Mouse: Drag (move), Wheel (zoom), Right-click (set pin/get coords), Double-click (expand map).
Keyboard: Arrow keys (move map), R (randomize seed), Esc (exit expanded view).
Touchscreen: Drag (move), Pinch (zoom), Tap (get coords), Tap & Hold (set pin/get coords), Double-tap (expand map).
Credits
Thanks to Earthcomputer for bedrockified, which helped improve Bedrock Edition support.