How to get the Tadpole Depth Module Mk. 1 in Subnautica 2. See recipe data card location, crafting recipes, and how to equip vehicle upgrades.
Table of Contents
Depth Module Mk. 1 Overview
Upgrade for Deeper Exploration

| Module Name | Details |
|---|---|
Tadpole Depth Module Mk. 1 | [Description] Structural health monitoring allows the Tadpole to dive deeper before structural damage. Multiple modules do not stack. [Type] Tadpole Upgrade Module [Upgraded Depth Limit] 450 Meters (+200m Extension) |
The Tadpole Depth Module Mk. 1 is an essential vehicle upgrade in Subnautica 2. This module strengthens your vehicle's hull and allows you to safely descend into deeper zones without taking immediate pressure damage. Once equipped, the Tadpole's maximum safe depth increases to 450 meters.
Depth Module Mk. 1 Location
Data Card Found in the Observatory

The recipe data card is hidden deep inside the dangerous Needler Nest area within the Observatory biome. This region is especially hazardous because hostile Needlers can launch long-range projectile spikes directly at your vehicle.
Exact Data Card Location

| Name | Distance |
|---|---|
| Tadpole Depth Module Mk. 1 Recipe Data Card | ~1,400m East of the Lifepod |
Follow the debris trail descending into the lower sea levels until you find a cavern entrance. Inside the cave system, you will eventually discover the wreckage of Ruby's Tadpole. The Tadpole Depth Module Mk. 1 Recipe Data Card can be found directly in front of the destroyed sub beside a Tadpole Haul Chassis fragment.
How to Craft and Equip Depth Module Mk. 1
How to Craft Depth Module Mk. 1
| Module Name | Required Materials |
|---|---|
Tadpole Depth Module Mk. 1 | - 3x Celestine - 2x Enameled Glass - 1x System Chip |
You can craft the Tadpole Depth Module Mk. 1 at the Modification Station using the materials listed above.
How to Equip Upgrade Modules

Once crafted, swim to your Tadpole and locate the Upgrade compartment positioned on the upper rear section of the vehicle, directly behind the main Power Cell docking slot. Interact with the Upgrade compartment to install the module.
Related Articles
Recommended Guides
![]() | ![]() | ![]() |
![]() | ![]() | ![]() |
| Progression & Priorities | ||
|---|---|---|
![]() | ![]() | Late Game |
Lists
![]() | ![]() | ![]() |
![]() | ![]() | ![]() |
![]() |