Seamoth

The Seamoth is the smallest submarine-type vehicle in Subnautica, but also the second fastest of the vehicles with its top speed of 25 Knots or 12.7 m/s.

Overview

The Seamoth is used for diving into caves and exploring the ocean. Players can use the Seamoth to replenish air when diving in the deeper areas or in caves.

The Seamoth also has a health bar and energy which is needed to be maintained in order for operation. On one full charge, the Seamoth can travel approx. 10650 meters (106.5m/1%). Its health, which can decrease by crashing it into objects at any depth, or through attacks of hostile creatures, can be repaired with the welder tool. However, once the health bar reaches 0%, the Seamoth will start to emit smoke and become unrepairable. Its energy can be replenished by docking it to the Cyclops submarine or by replacing the power cell on its back.

In the future it will be able to dock to the Moon Pool Seabase module.

Influence of Depth

The Seamoth has a safe depth of 125 meters, and a crush depth of 225 meters. Although the on-board AI will say "CAUTION: PASSING SAFE DEPTH" when below 125 meters, the Seamoth can still take collision damage above 125 meters. Below 225 meters, the Seamoth will take hull damage at a constant rate of about 7% per second.

Dangers

Currently, the only dangers to the Seamoth are Reaper Leviathans, Bone Sharks, Crashes, and passing the crush depth. The Crashes seem to be the most dangerous, as they can destroy the Seamoth with only one launched Crash.