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Seatruck

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The Seatruck is a modular, one-person submersible vehicle in Subnautica: Below Zero. It features attachable modules for storage, fabrication, and docking, offering adaptable exploration capabilities.

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Seatruck

Seatruck

PropertyDetails
Category<a href="/wikis/vehicles">Vehicles</a>
DescriptionOne-person sea-and-space vehicle.
<a href="/wikis/hull-integrity">Hull Integrity</a>No Modules: 150m<br><a href="/wikis/depth">Depth</a> Module MK1: 300m<br>Depth Module MK2: 650m<br>Depth Module MK3: 1,000m
<a href="/wikis/health">Health</a>600
Blueprint Source<a href="/wikis/fragments">Fragments</a>
Acquired From<a href="/wikis/mobile-vehicle-bay">Mobile Vehicle Bay</a>
Debug IDseatruck

"The seatruck is a modular aquatic navigation vehicle. For fun and function, additional modules can be attached to the back of the main cabin — or detached to evade predators." ― <a href="/wikis/pda">PDA</a>

The Seatruck is a modular undersea vehicle, somewhat resembling a submersible train. It consists of a small cab unit to which various modules can be attached to add additional functions. An unmodified Seatruck has a crush depth of 150m, which can be increased by outfitting it with depth modules.

Overview

The Seatruck is an adaptable vehicle that can serve as anything from an agile mini-sub to a mobile seabase. With the ability to detach its front section, it allows the player to haul <a href="/wikis/resources-2">resources</a> and <a href="/wikis/equipment">equipment</a> to an area of interest and then conduct exploration of even fairly narrow spaces without worrying about air supply. It is ideal for exploring the deeper <a href="/wikis/biomes">biomes</a> and for getting to places quickly and safely.

It requires <a href="/wikis/energy">Energy</a> to function, with sockets for two Power Cells on the top of the cab module. The vehicle has its own <a href="/wikis/oxygen">Oxygen</a> supply, and will replenish the player's oxygen unless the power has been depleted. The Seatruck Cabin can be docked in either the <a href="/wikis/moonpool">Moonpool</a> or the <a href="/wikis/seatruck-dock">Seatruck Dock</a> to recharge. When docking with a moonpool, all modules automatically detach to allow the cabin to enter the Moonpool. The player can also manually detach the modules at any time by either going to the roof of a module and pulling it away, or pulling the lever on the left-hand side of the cab.

The Seatruck Cabin has a health meter, and reaching zero will cause the cabin to explode, but leaves any connected modules unaffected. The Seatruck Cabin can take damage from being below its crush depth, being attacked by hostile fauna, or by colliding with terrain or objects. Seatruck modules have individual health meters, though at present the game can only display the health of a maximum of five modules in the main cab display. Damage can be manually repaired with the <a href="/wikis/repair-tool">Repair Tool</a> or automatically in the Seatruck Dock. Unlike the main cabin, Seatruck modules are unaffected by crush depth.

Entering and exiting the Seatruck varies depending on its precise configuration and orientation. With just the cab, entering and exiting the vehicle is done using the roof-mounted <a href="/wikis/hatch">hatch</a>, and <a href="/wikis/robin-ayou">Robin Ayou</a> will immediately take the controls on entering. With at least one module attached that is not the <a href="/wikis/seatruck-docking-module">Seatruck Docking Module</a>, the vehicle can be entered from either the roof hatch or the rear door. The Docking Module has no rear door, and instead uses a roof hatch like the cab. However, upon either quitting the game and reloading the save while piloting the Seatruck, or dying and respawning inside the cab, the player will spawn in standing position, similar to how the player would enter the vehicle when one or more modules are attached. This occurs regardless of whether modules are attached to the cab or not.

Entering and exiting both change when modules are attached. On entry, Robin will be standing in the vehicle with the driver's seat folded down, and can walk around inside it or manually take the controls. On leaving the controls, she switches back into this state, and has to manually leave the vehicle via the <a href="/wikis/ladder">ladder</a> on the right-hand wall of the cabin, or through the last of the attached modules.

If the Seatruck is at a steep incline upwards or downwards, this behavior is overridden and Robin will enter and exit the cab as if it is disconnected from the rest of the vehicle. The rear door will place Robin directly into the cab at such an angle.

The cab is the only part of the vehicle that has a power supply, and if it is detached, any other modules will act like an unpowered <a href="/wikis/base">base</a>, with no oxygen generation and the <a href="/wikis/seatruck-fabricator-module">Seatruck Fabricator Module</a> unable to operate. The player also cannot use the <a href="/wikis/tether-tool">Tether Tool</a> to jump to the <a href="/wikis/seatruck-teleportation-module">Seatruck Teleportation Module</a> if the cab is not connected.

The <a href="/wikis/habitat-builder">Habitat Builder</a> cannot be used to place objects inside any part of the Seatruck.

Upon entering a Seatruck, the player’s inventory will be secured and items will not be lost in the event of <a href="/wikis/death">death</a>, regardless of attached modules. The player will respawn in the Seatruck.

Modules

Seatruck modules can be attached to the back of the cab and can be linked to each other. Modules have a distinct "back" and "front" and must be connected the right way around. The modules can be controlled to a limited extent by interacting with the grab-bar on the roof at the front of each module, but they can only be moved extremely slowly this way. This is primarily to allow the player to manually re-configure the Seatruck, and can decouple or re-couple the modules. After being detached, a module will have to be pulled some distance away from whatever it was detached from before it will attempt to re-attach.

Adding 3 or more Modules will decrease the overall speed of the cabin when attached. This effect increases as the number of additional modules increases.

ModuleFunctionSourceDebug Spawn
Seatruck Cabin CabinBase module of the Seatruck. Functions as a small <a href="/wikis/submarine">submarine</a> by itself and can be extended with further modules.<a href="/wikis/purple-vents">Purple Vents</a><br><a href="/wikis/thermal-spires">Thermal Spires</a><br><a href="/wikis/twisty-bridges">Twisty Bridges</a>seatruck
Aquarium Module <a href="/wikis/aquarium">Aquarium</a> ModuleA module with two aquariums that captures nearby fish.<a href="/wikis/lilypad-islands">Lilypad Islands</a><br>Purple Ventsseatruckaquariummodule
Docking Module Docking ModuleA module that must be on the end of the Sea Truck that allows for the <a href="/wikis/prawn-suit">Prawn Suit</a> to be docked.<a href="/wikis/deep-purple-vents">Deep Purple Vents</a>seatruckdockingmodule
Fabricator Module <a href="/wikis/fabricator">Fabricator</a> ModuleA module with a Fabricator used to craft Sea Truck <a href="/wikis/upgrades">upgrades</a>, and a small <a href="/wikis/storage">storage</a> <a href="/wikis/locker">locker</a>.<a href="/wikis/deep-twisty-bridges">Deep Twisty Bridges</a><br>Purple Ventsseatruckfabricatormodule
Sleeper ModuleA module with a <a href="/wikis/bed">Bed</a>, <a href="/wikis/jukebox">Jukebox</a>, and <a href="/wikis/picture-frame">Picture Frame</a>.Purple Ventsseatrucksleepermodule
Storage Module <a href="/wikis/storage-module">Storage Module</a>A module with five small storage lockers.Deep Twisty Bridgesseatruckstoragemodule
Teleportation ModuleA module that comes with a tether <a href="/wikis/tool">tool</a> that allows the player to teleport back to this module at any time.<a href="/wikis/scan">Scan</a> 10 Architect Artifactsseatruckteleportationmodule

Upgrades & Customization

To upgrade the Seatruck, open the upgrades panel located on the port side, just above the thruster. Up to 4 upgrades can be installed into the Seatruck. Only one of each upgrade can be installed at a time. Upgrades can be crafted via the Fabricator, the Seatruck Fabricator Module, or with a <a href="/wikis/vehicle-upgrade-console">Vehicle Upgrade Console</a>. The Depth Upgrades are provided by unlocking the Seatruck blueprint, while the <a href="/wikis/blueprints">blueprints</a> of the remaining upgrades can be found through scanning (usually <a href="/wikis/sea-monkey">Sea Monkey</a> Nests) or sometimes found in the environment already built.

UpgradeFunctionSpawn ID
Seatruck AfterburnerShort speed boost.seatruckupgradeafterburner
<a href="/wikis/seatruck-depth-upgrade-mk1">Seatruck Depth Upgrade MK1</a>Increases maximum crush depth to 300 meters.seatruckupgradehull1
<a href="/wikis/seatruck-depth-upgrade-mk2">Seatruck Depth Upgrade MK2</a>Increases maximum crush depth to 650 meters.seatruckupgradehull2
<a href="/wikis/seatruck-depth-upgrade-mk3">Seatruck Depth Upgrade MK3</a>Increases maximum crush depth to 1000 meters.seatruckupgradehull3
<a href="/wikis/seatruck-horsepower-upgrade">Seatruck Horsepower Upgrade</a>Increases speed when hauling additional modules.seatruckupgradehorsepower
<a href="/wikis/seatruck-perimeter-defense-upgrade">Seatruck Perimeter Defense Upgrade</a>Activate to ward off predators.seatruckupgradeperimeterdefense

Recipe

The blueprint for this item is unlocked by scanning fragments in the Thermal Spires and the Twisty Bridges, or a single <a href="/wikis/fragment">fragment</a> in the Purple Vents. It is crafted in the Mobile Vehicle Bay.

  • 1x <a href="/wikis/titanium-ingot">Titanium Ingot</a>
  • 1x <a href="/wikis/advanced-wiring-kit">Advanced Wiring Kit</a>
  • 2x <a href="/wikis/glass">Glass</a>
  • 3x <a href="/wikis/lead">Lead</a>
  • 1x <a href="/wikis/power-cell">Power Cell</a>

<a href="/wikis/databank">Databank</a> Entry

Sea Truck Ency

The seatruck is an advanced underwater vehicle with attachable, modular cabins for maximum adaptability in the field.

Main Cabin:

  • Small and nimble when unencumbered by additional modules, the main cabin alone is comparable in speed to the seamoth
  • A wide, reinforced glass viewing <a href="/wikis/window">window</a> provides excellent forward visibility while at the helm
  • Retractable helmsperson's <a href="/wikis/chair">chair</a>, no expense spared
  • Unlike the larger <a href="/wikis/cyclops">cyclops</a> submarine, the seatruck does not support the addition of internal modules like fabricators
  • However it can be upgraded to enhance its speed, towing power and crush depth, amongst other things

Ratings:

  • Speed: Variable depending on cargo
  • Crush Depth: 150m (Upgradeable)
  • Power: 2x replaceable power cells
  • Upgrade module slots: 4
  • Persons: 1+

Additional Modules:

  • Bespoke cargo modules can be attached to the rear of the main cabin, providing a range of powerful benefits
  • Available modules include fabricators, docking stations, habitation sections and, of course, plenty of storage
  • Additional cargo modules reduce the seatruck's speed, maneuverability and power efficiency
  • Additional modules can be jettisoned directly from the main cockpit controls to enable exploration of tight spaces, or in case of emergency

'The Seatruck: Competing products are trucking hell.'

Source: Scan Seatruck fragments

Achievement

Truckin' Achievement

Truckin' Construct a Seatruck.

How to obtain: The player must build a Seatruck.

Bugs

  • When a Seatruck module is spawned in another module, sometimes the player will get launched out of the Seatruck, but the game thinks you are still in it, resulting in the player walking around underwater.
  • When the Seatruck explodes, it will create two of each fragment.
  • When disconnecting the Seatruck from its modules inside the dock, Robin will be looking down in an awkward position and the Seatruck is unable to move far.
  • Standing inside the Seatruck (not piloting) prevents all creature attacks that would result in a grabbing animation to occur. If a creature that's capable of grabbing the Seatruck is in the process of heading towards the vehicle, steeping away from controls causes the creature to cease attacking and, at most, harmlessly bumping into the Seatruck.

Front Front

Side Side

Top Top

Bottom Bottom

Back Back

Interior Interior

HUD <a href="/wikis/hud">HUD</a>

Seatruck docked in the Moonpool Seatruck docked in the Moonpool

Developer introduction to the Seatruck

Seatruck UI Seatruck UI

Interior Interior

Sketchfab model Sketchfab model

Seatruck movement and chaining

Concept art <a href="/wikis/concept-art">Concept art</a>

Seatruck Design Process - by Evgeny Park Seatruck Design Process

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