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Subnautica 2 Hycean Guide

Where to find Hycean in Subnautica 2, how to scan it safely, what it means for routes, and what risks to avoid.

Hycean quick answer

Hycean is a large fauna entry most worth checking around Karakorum. Scan it only when you still have a visible route home, enough oxygen to retreat, and a clear reason to add the creature to your current checklist.

FieldNotes
Main regionKarakorum
RoleLarge fauna
Scan methodObserve first, scan second, and never chase into unknown depth.
UseCreature log and route caution
RiskHigh

Location and route

Start from the closest safe landmark in Karakorum, then make one pass to identify sightlines before committing to the scan. If the creature pulls you away from the marked route, cancel the attempt and return with more oxygen, better mobility, or a vehicle-supported path.

Uses and unlock value

Hycean is mainly useful for creature log and route caution. Record the biome, nearby plants, nearby minerals, and the tool loadout that made the scan safe; those notes are more valuable than a one-time sighting during Early Access.

Risk and scan notes

Route value is the observation, not forcing the scan. The safest scan window is after you stop moving, check oxygen, and confirm no larger threat is closing from behind. In co-op, one player should hold the landmark while another scans so the team does not lose the return line.

What to do next

Use this page with Fauna List and All Creatures, Interactive Map and All Locations, and Deep Dive Checklist.

Early Access note

This page is current for the May 20, 2026 Early Access build context and should be rechecked after major patches.