Subnautica 2 Seamoth (Tadpole) Unlock and 5 Upgrade Modules Guide

Detailed guide: Starting from the Lifepod, find the three Seamoth blueprint fragments by direction, and obtain Engine Efficiency, Depth Module, Collision Shield, Solar Charger, and Sonar Module, while collecting all Prawn Suit blueprints. Includes crafting and installation instructions.

• Guide topic: Equipment unlock

Prerequisites

• Scanner
• Repair Tool
• Seamoth (requires crafting first)
• Depth Module (to dive deeper)

Identification and Corrections

• In the input, 'Tadpole' refers to Seamoth; 'Well' should be Moonpool; 'Modification Center' should be Vehicle Upgrade Console.
• 'Scout Swing Chassis' is likely a speech recognition error; actually refers to Seamoth upgrade modules or Prawn Suit parts. Here we keep the original text but suggest referencing in-game names.
• Directions and distances are based on the Lifepod starting point.

Condensed Steps

Seamoth Blueprint Fragment ①

Time: 00:10.000 - 00:23.160

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1

Seamoth Blueprint Fragment ①

From the Lifepod, head south. Find the large metal plate and sink to the bottom. Scan the first Seamoth blueprint fragment.

Key points:

• Direction: South
• Location: Where the large metal plate sinks

Seamoth Blueprint Fragment ②

Time: 00:24.840 - 00:41.530

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2

Seamoth Blueprint Fragment ②

Head west to bearing 255 to reach the camp. Scan the second Seamoth blueprint fragment on the shelf.

Key points:

• Direction: West 255
• Location: Camp shelf

Seamoth Blueprint Fragment ③

Time: 00:44.290 - 00:59.010

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3

Seamoth Blueprint Fragment ③

From the Lifepod, head northeast to the workbench. Use the current to sink and scan the third Seamoth blueprint fragment.

Key points:

• Direction: Northeast
• Location: Below the current next to the workbench

Obtain Scout Swing Chassis (possibly Seamoth part)

Time: 01:01.130 - 01:34.720

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4

Obtain Scout Swing Chassis (possibly Seamoth part)

From the Lifepod, head between southeast and east. Pass through a high-temperature area, descend to 130m, enter the 'Tadpole House' and scan two wings to unlock.

Key points:

• Direction: East-southeast
• Depth: 130m
• Prerequisite: Pass through high-temperature area

Engine Efficiency Module

Time: 01:37.500 - 01:59.980

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5

Engine Efficiency Module

From the Lifepod, head due east 1300m to the Alien Ruins. Enter and obtain the Engine Efficiency Module on the shelf on the right.

Key points:

• Direction: Due east
• Distance: 1300m
• Location: Shelf on the right in the Alien Ruins

Depth Module & Prawn Suit Blueprint ①

Time: 02:01.530 - 02:29.530

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6

Depth Module & Prawn Suit Blueprint ①

From the Alien Ruins, head southeast, bearing 150. Spot a ring-shaped entrance. Leave the Seamoth and swim into the cave. Inside, take the Depth Module and scan the first Prawn Suit blueprint nearby.

Key points:

• Direction: Southeast 150
• Prerequisite: Seamoth dive limit 200m (without Depth Module)
• Contents: Depth Module + Prawn Suit Blueprint ①

Collision Shield Module

Time: 02:30.690 - 02:42.320

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7

Collision Shield Module

From the Alien Ruins, head bearing 195 and descend to 180m. You can obtain the Collision Shield Module at the workbench.

Key points:

• Direction: 195
• Depth: 180m
• Location: Workbench

Solar Charger Module

Time: 02:44.490 - 03:01.650

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8

Solar Charger Module

From the Alien Ruins, head bearing 120 and descend to 100m. Find a large metal crate. Enter through the opening, use the Repair Tool to fix the door, then go inside to obtain the Solar Charger Module.

Key points:

• Direction: 120
• Depth: 100m
• Tool: Repair Tool
• Location: Inside the large metal crate

Cavitation Sonar Module

Time: 03:04.550 - 03:28.350

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9

Cavitation Sonar Module

From the Alien Ruins, head east, bearing 75. Stick to the orange net and go straight. Descend to 350m (swim if you don't have the Depth Module). Obtain the Cavitation Sonar Module at the workbench.

Key points:

• Direction: East 75
• Depth: 350m
• Prerequisite: Stick to the orange net
• Location: Workbench

Prawn Suit Blueprint ②

Time: 03:32.980 - 03:42.230

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10

Prawn Suit Blueprint ②

From the slope at the sonar location, descend. Find and scan the second Prawn Suit blueprint.

Key points:

• Location: Descend from the slope at the sonar location

Prawn Suit Blueprint ③

Time: 03:45.740 - 04:06.990

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11

Prawn Suit Blueprint ③

Head bearing 150 and ascend to 210m. Scan the third Prawn Suit blueprint at the edge of the slope.

Key points:

• Direction: 150
• Depth: 210m
• Location: Edge of the slope

Craft the Seamoth and Install Upgrade Modules

Time: 04:07.510 - 04:42.910

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12

Craft the Seamoth and Install Upgrade Modules

First, build a Moonpool (large enough to avoid getting stuck), then build a Seamoth Dock and Vehicle Equipment Station. Craft the Seamoth and two chassis (Prawn Suit automatically attaches). Then build a Vehicle Upgrade Console, craft the upgrade modules (Collision Shield and Engine Efficiency can be stacked), and finally install the modules at the rear of the Seamoth.

Key points:

• Prerequisite: All materials (see previous video)
• Build: Moonpool, Dock, Vehicle Equipment Station, Vehicle Upgrade Console
• Module installation: Rear of the Seamoth

Frequently Searched Questions

• Where is the Seamoth blueprint?
• How to get the Depth Module?
• Seamoth upgrade module locations
• Prawn Suit blueprint collection
• What materials are needed to craft the Seamoth?