Seamoth Depth Module MK1
The Seamoth Depth Module MK1 is a vehicle upgrade in Subnautica 2 that increases the Seamoth's crush depth to 300m, enabling safe exploration of the Grassy Plateaus and upper Kelp Forest.
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Description
The Seamoth Depth Module MK1 is the first-tier depth upgrade for the Seamoth, reinforcing the hull to withstand pressures up to 300m. This extends your safe operating range into the Grassy Plateaus and the upper reaches of the Kelp Forest, opening up new resource nodes and fragment sites without risking hull damage. It is the entry point of a three-tier depth upgrade chain.
How to Craft
Craft the Seamoth Depth Module MK1 at a Modification Station. The recipe is lightweight, making it an ideal first upgrade for a newly built Seamoth. Install it in the Seamoth's upgrade panel at a Moonpool or via the vehicle's side hatch.
Materials Required
- 1x Titanium Ingot10x Titanium
- 1x Glass2x Quartz
Crafting Station
Modification Station — a base-mounted station for vehicle and equipment upgrades.
Early-game upgradeWhat it Does
The Seamoth Depth Module MK1 reinforces the hull, extends safe operating depth, and unlocks new biomes for exploration.
Hull Reinforcement
Strengthens the Seamoth's pressure tolerance, preventing hull damage below the 200m base limit.
Depth Extension
Raises the crush depth to 300m, opening the Grassy Plateaus and upper Kelp Forest to safe dives.
Biome Access
Unlocks new resource nodes, fragment sites, and creature encounters in the 200–300m range.
Upgrades
The MK1 is the first step in the Seamoth depth upgrade chain. Replace it with higher tiers at the Modification Station to push deeper.
Related Blueprints
Map Locations
The Seamoth Depth Module MK1 is crafted rather than found, but it unlocks access to new biomes between 200–300m. Explore the newly reachable zones on the interactive map.
View on Interactive Map →Frequently Asked Questions
How do I unlock the Seamoth Depth Module MK1?
Craft it at the Modification Station after scanning depth module fragments or unlocking it through research. The blueprint is often acquired naturally as you scan wrecks in the Grassy Plateaus, or it unlocks automatically once you have a Modification Station built and a Seamoth deployed.
What depth does the MK1 module reach?
The MK1 raises the Seamoth's crush depth from 200m to 300m. This lets you safely explore the Grassy Plateaus and upper Kelp Forest without taking hull damage, though deeper biomes like the Mushroom Forest still require a MK2 or higher.
Can I stack multiple depth modules?
No, only one depth module can be installed at a time; upgrade to MK2 or MK3 for greater depth. The Seamoth has four upgrade slots total, so you can run a depth module alongside perimeter defense, sonar, and storage modules simultaneously.
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