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This item is late-game content: a deep biome, a leviathan or part of the story. It stays hidden until you choose to see it.
Ancient alien tablet with a purple symbol.
Nearest to your start: Quarantine Enforcement Platform, 1.25 km N, 0 m deep · always there
| Where | At least one | Expected | Depth | From your start |
|---|---|---|---|---|
| Quarantine Enforcement PlatformFixed spot | Always | 1 | 0 m | 1.25 km N |
Fragment finder lists every blueprint.
7× in Quarantine Enforcement Platform · Mountains Map →
1× in Degasi Habitat: Floating Islands · Floating Islands Map →
This carbon-based device is lighter than it looks, and features a symbol which resembles a 'U', lit up in purple. Despite the onboard power still functioning, algae growth on the exterior indicates it was abandoned hundreds, perhaps thousands of years ago. While the technology is far beyond federation levels, and there is no obvious way to interface with it, it should nonetheless be possible to fabricate a precise physical copy of the device, if necessary.
Subnautica data: build 83031 (Oct 2025)
