UNLOCK // PDA CASE FILE
Can't Unlock Seatruck Depth Upgrades in Below Zero
Seatruck depth upgrades are not a separate fragment hunt. Unlocking the Seatruck also unlocks its depth-module blueprints, after which the modules are crafted normally.
LAST CHECK
ANSWER LOCK // QUICK RESPONSE
Unlock the Seatruck first. That unlocks the Seatruck Depth Module blueprints, including MK1; craft the module at the Fabricator or Vehicle Upgrade Console rather than searching for another fragment set.
SIGNAL CONFIRMEDBLUEPRINT DIAGNOSTIC // WHY IT ISN'T UNLOCKING
The depth modules are tied to the Seatruck unlock. If the Seatruck is not yet available, the missing step is the vehicle blueprint; if it is available, check the Fabricator or Vehicle Upgrade Console and gather the recipe materials.
UNLOCK CHECKLIST
- Unlock the Seatruck blueprint
- Open the Fabricator or Vehicle Upgrade Console vehicle-upgrade menu
- Craft the appropriate Seatruck Depth Module
BRING THIS
- Seatruck blueprint
- Fabricator or Vehicle Upgrade Console
- Materials for the selected depth module
DATA ACCESS LEVEL
Reveal only as much as you need
COMMON REASONS YOU ARE STUCK
- Searching for Seatruck depth fragments
- Using the original game's Seamoth module route
- Expecting the MK1 module to be built at a Modification Station
- Taking the unmodified Seatruck into a deeper biome before installing the upgrade
EVIDENCE LOG
Verification record
Facts on this page are separated from player speculation. Version-sensitive answers should be rechecked after an official update.
LAST CHECK2026-09-01
- SOURCE // 01Seatruck Depth Upgrade MK1 OPEN SOURCE ↗WIKI · checked 2026-09-01
- SOURCE // 02Seatruck (Below Zero) OPEN SOURCE ↗WIKI · checked 2026-09-01