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Tadpole Depth Module Guide

A vehicle upgrade guide for Tadpole Depth Module MK1 and MK2 route planning, fragment checks, installation, and safe first tests.

Quick answer

Prioritize Tadpole Depth Modules when the next objective sits below your current safe band. Find the module fragments, confirm MK1 or MK2 in the upgrade menu, install it, then test on a known route before diving deeper.

Intermediate8 min3 screenshots3 video refs
Module route gameplay frame for Subnautica 2 map-resources guide
Gameplay frame00:20

Module route

Depth module runs should begin only after depth is the real route blocker.

MK1 check

MK1 check

01:14 evidence frame

MK2 plan

MK2 plan

02:28 evidence frame

Video walkthrough

Watch the route, then match the frames

Open source video
Module route00:20Frame 1Depth module runs should begin only after depth is the real route blocker.MK1 check01:14Frame 2Use the module menu as proof that the vehicle can safely attempt the next band.MK2 plan02:28Frame 3MK2 planning should include power, storage, and a known test route before deep exploration.

Video chapters

5 steps
Module route chapter frame00:20Step 1Check whether depth is the real blocker before chasing optional modules.Watch timestamp
MK1 check chapter frame01:14Step 2Follow the fragment route and scan only confirmed module targets.Watch timestamp
MK2 plan chapter frame02:28Step 3Open the upgrade menu and confirm whether MK1 or MK2 is unlocked.Watch timestamp
44:00Step 4Install the module and return to a familiar route for a first test.Watch timestamp
55:00Step 5Push into the new depth band only after the vehicle and exit plan feel stable.Watch timestamp

Video references

Watch or inspect the route before you dive

Click YouTube cards to load the player. Open frame cards to compare local screenshot notes. Use the evidence to confirm landmarks, movement, and encounter pacing, then follow the written checklist below.

YouTube community guideOpen on YouTubePlayable embed

Vehicle upgrade route context

Watch for: MK1 and MK2 module evidence, installation checks, and safe first-depth testing.

Local frame analysisSearch on YouTubeFrame evidence

Module route frame review

Watch for: Start with Tadpole depth module guide at 00:20. Compare the screenshot cue, route note, and player action before following the guide in-game.

Local frame analysisSearch on YouTubeFrame evidence

MK2 plan frame review

Watch for: Start with Tadpole depth module guide at 02:28. Compare the screenshot cue, route note, and player action before following the guide in-game.

Video watch notes

What to pause, compare, and write down

Do not watch the video like entertainment only. Use these notes as a second-screen checklist: pause on landmarks, confirm the player action, then return to the written route.

Watchlist

1

Watch the route to the module source before the menu appears.

2

Pause on MK1 or MK2 confirmation and connect it to the depth band it opens.

3

Look for whether the creator tests the module on a known route before diving deeper.

Module route
Frame read 100:20

Module route

The route frame tells players whether they are ready to chase the module at all.

Action: Bring only the tools needed for the module route and leave side pickups alone.

MK1 check
Frame read 201:14

MK1 check

The MK1 frame proves the upgrade state and should change only the next planned route.

Action: Install, test near a known area, then update the route plan.

MK2 plan
Frame read 302:28

MK2 plan

The MK2 frame belongs to deeper progression and needs stronger support.

Action: Check storage, power, threat response, and exit plan before using the new limit.

Video route timeline

Turn the video into playable checkpoints

Open source video

Use this section like a second-screen route sheet. Open each checkpoint, compare the frame, do the action, then stop if your route no longer matches the video evidence. It keeps the guide useful even when Early Access shifts small placements or creature behavior.

00:20Checkpoint 1: Check whether depth is the real blocker before chasing optional modules.The route frame tells players whether they are ready to chase the module at all.Expand
Module route

Module route

Depth module runs should begin only after depth is the real route blocker.

Player action

Check whether depth is the real blocker before chasing optional modules.

Proof before moving on

The route frame tells players whether they are ready to chase the module at all.

Watch this timestamp

If this fails

Delay the module and solve storage, scanning, or base workflow first.

01:14Checkpoint 2: Follow the fragment route and scan only confirmed module targets.The MK1 frame proves the upgrade state and should change only the next planned route.Expand
MK1 check

MK1 check

Use the module menu as proof that the vehicle can safely attempt the next band.

Player action

Follow the fragment route and scan only confirmed module targets.

Proof before moving on

The MK1 frame proves the upgrade state and should change only the next planned route.

Watch this timestamp

If this fails

Run a short known route before opening a new deep objective.

02:28Checkpoint 3: Open the upgrade menu and confirm whether MK1 or MK2 is unlocked.The MK2 frame belongs to deeper progression and needs stronger support.Expand
MK2 plan

MK2 plan

MK2 planning should include power, storage, and a known test route before deep exploration.

Player action

Open the upgrade menu and confirm whether MK1 or MK2 is unlocked.

Proof before moving on

The MK2 frame belongs to deeper progression and needs stronger support.

Watch this timestamp

If this fails

Treat depth access as permission to scout, not permission to loot everything.

00:20Checkpoint 4: Install the module and return to a familiar route for a first test.The route frame tells players whether they are ready to chase the module at all.Expand
Module route

Module route

Depth module runs should begin only after depth is the real route blocker.

Player action

Install the module and return to a familiar route for a first test.

Proof before moving on

The route frame tells players whether they are ready to chase the module at all.

Watch this timestamp

If this fails

Delay the module and solve storage, scanning, or base workflow first.

01:14Checkpoint 5: Push into the new depth band only after the vehicle and exit plan feel stable.The MK1 frame proves the upgrade state and should change only the next planned route.Expand
MK1 check

MK1 check

Use the module menu as proof that the vehicle can safely attempt the next band.

Player action

Push into the new depth band only after the vehicle and exit plan feel stable.

Proof before moving on

The MK1 frame proves the upgrade state and should change only the next planned route.

Watch this timestamp

If this fails

Run a short known route before opening a new deep objective.

Gameplay evidence

Screenshots to match before you keep swimming

Use these frames as visual checkpoints. If the terrain, lighting, or landmark does not match, slow down and re-check the route instead of forcing the next step.

Module route
00:20Checkpoint 1

Module route

Depth module runs should begin only after depth is the real route blocker.

MK1 check
01:14Checkpoint 2

MK1 check

Use the module menu as proof that the vehicle can safely attempt the next band.

MK2 plan
02:28Checkpoint 3

MK2 plan

MK2 planning should include power, storage, and a known test route before deep exploration.

Route decision lab

Decide if this route is worth running now

This section turns the video into a practical in-game decision. Use it before leaving base, after the first landmark, and again before entering a deeper or darker area.

Route purpose

Prioritize Tadpole Depth Modules when the next objective sits below your current safe band. Find the module fragments, confirm MK1 or MK2 in the upgrade menu, install it, then test on a known route before diving deeper.

Visual checkpoint

Depth module runs should begin only after depth is the real route blocker.

Map anchor

Tadpole Depth Module Chain in Depth module fragment route. Use it for use this when depth is the blocker, not when a flashy optional module would merely be nice.

Abort rule

Treating depth modules as optional comfort upgrades when objectives are gated.

Field manual translation

Depth modules should be evaluated as route gates. The useful evidence is the module route, the MK1 or MK2 confirmation, and a safe test before deeper exploration. This keeps the guide from encouraging players to dive straight into a new threat band after installing an upgrade.

Primary job

Open the next depth band - Depth is critical when the next objective is physically below the current safe limit.

Best entry habit

Module proof first - Use the upgrade menu to prove the module state before changing route plans.

Stop condition

No test route - Do not use a new depth limit on an unknown route until the module is tested safely.

Patch-safe reading

Exact item positions can shift during Early Access. The useful part of this page is the route logic: what to prepare, what visual cue to confirm, what objective to finish, and when to turn back.

Updated

2026-06-12 / tracking / Early Access

What this guide covers

Requirements

  • Tadpole unlocked
  • Module route
  • Known test route

Use this if

You want a route you can follow from video evidence without needing exact official coordinates. The screenshots and steps are written to help you recognize areas, landmarks, and decisions while playing.

Early Access can move details. Treat this as a video-based walkthrough and verify landmarks in your own build.

Step-by-step walkthrough

Follow the video route without guessing

1

Check whether depth is the real blocker before chasing optional modules.

Use this step as a route checkpoint, not as a promise that every object spawns in one exact coordinate. Match the landmark, compare the screenshot, then continue only if the return path is still clear.

If your game build looks different, stay with the same decision: keep oxygen safe, scan or collect the current blocker, and return before pushing into the next unknown area.

video-derived route noteverify landmarks in your build
Module route
00:20

Depth module runs should begin only after depth is the real route blocker.

2

Follow the fragment route and scan only confirmed module targets.

Use this step as a route checkpoint, not as a promise that every object spawns in one exact coordinate. Match the landmark, compare the screenshot, then continue only if the return path is still clear.

If your game build looks different, stay with the same decision: keep oxygen safe, scan or collect the current blocker, and return before pushing into the next unknown area.

video-derived route noteverify landmarks in your build
MK1 check
01:14

Use the module menu as proof that the vehicle can safely attempt the next band.

3

Open the upgrade menu and confirm whether MK1 or MK2 is unlocked.

Use this step as a route checkpoint, not as a promise that every object spawns in one exact coordinate. Match the landmark, compare the screenshot, then continue only if the return path is still clear.

If your game build looks different, stay with the same decision: keep oxygen safe, scan or collect the current blocker, and return before pushing into the next unknown area.

video-derived route noteverify landmarks in your build
MK2 plan
02:28

MK2 planning should include power, storage, and a known test route before deep exploration.

4

Install the module and return to a familiar route for a first test.

Use this step as a route checkpoint, not as a promise that every object spawns in one exact coordinate. Match the landmark, compare the screenshot, then continue only if the return path is still clear.

If your game build looks different, stay with the same decision: keep oxygen safe, scan or collect the current blocker, and return before pushing into the next unknown area.

video-derived route noteverify landmarks in your build
Module route
00:20

Depth module runs should begin only after depth is the real route blocker.

5

Push into the new depth band only after the vehicle and exit plan feel stable.

Use this step as a route checkpoint, not as a promise that every object spawns in one exact coordinate. Match the landmark, compare the screenshot, then continue only if the return path is still clear.

If your game build looks different, stay with the same decision: keep oxygen safe, scan or collect the current blocker, and return before pushing into the next unknown area.

video-derived route noteverify landmarks in your build
MK1 check
01:14

Use the module menu as proof that the vehicle can safely attempt the next band.

After-action plan

What to do after the guide works

1

Bank the result

Push into the new depth band only after the vehicle and exit plan feel stable.

2

Clean the inventory

Move route-critical materials into labeled storage so the next dive starts with empty space and a clear job.

3

Pick the next guide

A Tadpole upgrade checklist for depth modules, route expansion, module priorities, and safer vehicle planning.

Next route queue

Use these as the next blockers to solve after this route. Each queue card keeps the same evidence style: source video, gameplay frames, and a written checklist.

Upgrade menu gameplay frame for Subnautica 2 map-resources guide
Best immediate follow-up

Tadpole Upgrades Guide

A Tadpole upgrade checklist for depth modules, route expansion, module priorities, and safer vehicle planning.

3 videos3 framesroute timeline
Route out gameplay frame for Subnautica 2 map-resources guide
Use if the route branches

Tadpole Fragments Location Guide

A route-first Tadpole fragments guide for finding, scanning, and turning the vehicle unlock into safer deeper exploration.

3 videos3 framesroute timeline
Fragment scan gameplay frame for Subnautica 2 map-resources guide
Save for the next dive

Tadpole Submersible Guide

How to use the Tadpole as a route-planning anchor for biome pushes, co-op hauling, vehicle safety, and threat retreats.

3 videos3 framesroute timeline

Detailed notes

Depth modules are route gates

A depth module is valuable because it changes where the Tadpole can safely operate. The guide should connect each module to the objective band it opens.

How to use this in-game

Turn this note into one action before leaving base: decide the objective, keep only the materials or tools that support it, then stop the route once the scan, pickup, or landmark is confirmed. This keeps the guide useful even when Early Access patches move small details.

Safe test rule

After installing MK1 or MK2, test the new limit on a known route before using it for a dangerous objective. This separates upgrade confidence from exploration risk.

Install

Known route

Depth check

Return

How to use this in-game

Turn this note into one action before leaving base: decide the objective, keep only the materials or tools that support it, then stop the route once the scan, pickup, or landmark is confirmed. This keeps the guide useful even when Early Access patches move small details.

When to delay MK2

Delay the next depth module if the deeper route still lacks power, storage, or threat response. Depth access without route support can make the next trip worse, not better.

How to use this in-game

Turn this note into one action before leaving base: decide the objective, keep only the materials or tools that support it, then stop the route once the scan, pickup, or landmark is confirmed. This keeps the guide useful even when Early Access patches move small details.

Video route notes

Tadpole Depth Module Guide should be followed as a resource route, not as a memory test. Start by watching the first route movement and naming the entry condition before copying the path in-game. Check whether depth is the real blocker before chasing optional modules. Then pause again when the video reaches the first visible proof point, because that is where the guide changes from general advice into an action you can repeat. Follow the fragment route and scan only confirmed module targets. If the route starts to feel different in your build, keep the same player goal: repeat the route without relying on a perfect coordinate.

Entry check: Tadpole unlocked

Route action: Check whether depth is the real blocker before chasing optional modules.

Proof to look for: material or fragment proof

Version note: Early Access / tracking

How to use this in-game

Turn this note into one action before leaving base: decide the objective, keep only the materials or tools that support it, then stop the route once the scan, pickup, or landmark is confirmed. This keeps the guide useful even when Early Access patches move small details.

Screenshot checkpoints

Use screenshots as checkpoints instead of decoration. The first image should answer where the route begins, the second should show what confirms progress, and the third should explain what to do after the scan, pickup, puzzle state, or threat read is visible. Open the upgrade menu and confirm whether MK1 or MK2 is unlocked. This is especially important in Early Access because exact positions can drift while landmarks, depth bands, room states, and player decisions stay useful. A good screenshot lets you say, "I am at the right kind of place," before you risk oxygen, storage space, or vehicle safety.

Entry frame: match the landmark before moving deeper

Proof frame: confirm material or fragment proof

Exit frame: know the return direction before adding side goals

Loadout frame: check Module route

How to use this in-game

Turn this note into one action before leaving base: decide the objective, keep only the materials or tools that support it, then stop the route once the scan, pickup, or landmark is confirmed. This keeps the guide useful even when Early Access patches move small details.

Stop rule and next dive

The most useful part of this page is the stop rule. Treating depth modules as optional comfort upgrades when objectives are gated. Testing a new module in an unknown threat band. When the objective is confirmed, return and convert it into progress: craft the upgrade, sort the material, save the route note, or mark the blocker as solved. If the route fails, do not repeat the same swim blindly. Change one variable at a time: enter from a clearer landmark, reduce inventory clutter, bring the missing tool, or wait until oxygen and vehicle support match the route. That turns a failed resource route into better field knowledge instead of another full-inventory wander.

How to use this in-game

Turn this note into one action before leaving base: decide the objective, keep only the materials or tools that support it, then stop the route once the scan, pickup, or landmark is confirmed. This keeps the guide useful even when Early Access patches move small details.

Common mistakes

Treating depth modules as optional comfort upgrades when objectives are gated.

Testing a new module in an unknown threat band.

Forgetting storage, power, and return route after reaching a deeper zone.

FAQ

Is this guide for the current Subnautica 2 build?

This page is written for Early Access and includes a visible update date. Treat exact values as tracking notes until the current build is field-tested.

Does this page use official screenshots?

Pages combine attributed official Steam / Unknown Worlds media, local gameplay frame captures, and source-video evidence cards. New player-submitted captures should keep the route, timestamp, and build context attached.

Community notes

Add a field report

Player reports enter a moderation queue. Approved notes can load from Supabase; pending drafts stay visible in this browser for follow-up.

Local fallbackApproved public notes onlyLoading reports
Route checkEarly AccessApproved

Near starter shallows

Approx. 70-120m from pod

Confirm oxygen before leaving the first landmark. The route is much safer when you mark the return path before collecting side materials.

Patch watchHotfix 3+Approved

Guide-wide

N/A

Creature patrol ranges and fragment placement can shift between builds, so treat exact distances as field estimates until multiple players confirm them.

On this page

Video walkthroughSource videosWatch notesRoute timelineGameplay evidenceRoute decisionWhat this coversStep-by-stepAfter-action planDetailed notesCommon mistakesFAQ

Related guides

Upgrade menu gameplay frame for Subnautica 2 map-resources guide3 vidTadpole Upgrades GuideA Tadpole upgrade checklist for depth modules, route expansion, module priorities, and safer vehicle planning.Route out gameplay frame for Subnautica 2 map-resources guide3 vidTadpole Fragments Location GuideA route-first Tadpole fragments guide for finding, scanning, and turning the vehicle unlock into safer deeper exploration.Fragment scan gameplay frame for Subnautica 2 map-resources guide3 vidTadpole Submersible GuideHow to use the Tadpole as a route-planning anchor for biome pushes, co-op hauling, vehicle safety, and threat retreats.Vehicle plan gameplay frame for Subnautica 2 map-resources guide3 vidVehicles and UpgradesA vehicle and upgrade planning guide for depth, storage, route safety, and progression in Subnautica 2.

Content policy

This guide is based on gameplay video references. It avoids exact-coordinate promises unless the footage clearly supports them.