SUBNAUTICA / VEHICLES

Seamoth Depth Module

A vehicle upgrade family that increases the Seamoth's survivable operating depth.

QUICK REFERENCEFirst SubnauticaReviewed 2026-10-28Reference / noindex

OVERVIEW

Understanding Seamoth Depth Module

A vehicle upgrade family that increases the Seamoth's survivable operating depth.

This is an original reference for the first Subnautica. Your current depth rating, oxygen, available tools and navigation route determine when an objective is practical. Follow actual in-game PDA and Fabricator information for any values that vary by version.

PRACTICAL APPROACH

How to use this information

Check the installed tier against the next biome before descending.

COMMON MISTAKES

What to avoid

A depth warning is not a suggestion to push farther for a few extra seconds.

CONTINUE ON VOLPEDIA

Related topics and walkthroughs

VEHICLESSeamoth

A small one-person submersible suited to fast travel and many middle-depth scouting trips.

EXPLORATIONDepth Rating

Vehicles are rated for certain water depths and can be upgraded with appropriate modules.

A docking module for Seamoth or Prawn Suit and an important upgrade hub.

PROGRESSIONSeamoth Upgrade Route

Progress from the first vehicle to depth upgrades, repairs and Moonpool support.

TIPSWatch the Seamoth Depth Alarm

A submersible upgrade sets a real safety boundary.

VEHICLESCyclops

A large mobile submarine supporting storage, modules and extended expeditions.

VEHICLESCyclops Engine Efficiency Module

An upgrade that reduces some Cyclops energy expenditure during travel.

Back to Vehicles

Independent Volpedia editorial encyclopedia about the first Subnautica, reviewed 2026-10-28. Unaffiliated with Unknown Worlds Entertainment. Category illustrations are original diagrams, not in-game maps, screenshots or exact creature portraits. No fabricated damage statistics, spawn probabilities or detailed map coordinates. References are documented privately and not shown as outbound research buttons.