Video walkthrough
Watch the route, then follow the written steps
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.
Rebreather and depth-support route context
Watch for: Depth-support planning, oxygen pressure, fragment confirmation, and first safe test route.
Fragment-style proof frame review
Watch for: Start with Depth-support route / Rebreather fragment guide at 01:13. Compare the screenshot cue, route note, and player action before following the guide in-game.
Safe heading frame review
Watch for: Start with Depth-support route / Rebreather fragment guide at 00:31. 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
Pause on Depth route check and identify the landmark, depth band, or objective state before following the next step.
Use Fragment-style proof to confirm what changed; if the video only shows a close-up, rebuild the route from the previous landmark.
Treat Safe heading as the exit rule: finish the objective, return, and update storage or crafting before adding side goals.

Depth route check
Rebreather routes should pause at the depth check before oxygen pressure becomes the objective.
Action: Start the route only when oxygen and return direction are stable.

Fragment-style proof
Use the proof frame to separate fragment progress from general material gathering.
Action: Scan each fragment and check blueprint progress immediately.

Safe heading
Safe heading notes are critical before testing a new depth-support unlock.
Action: Abort if the route requires a depth band your current gear cannot support.
Video route timeline
Turn the video into playable checkpoints
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.
00:52Checkpoint 1: Start the route only when oxygen and return direction are stable.Rebreather routes should pause at the depth check before oxygen pressure becomes the objective.Expand

Depth route check
Rebreather routes should pause at the depth check before oxygen pressure becomes the objective.
Player action
Start the route only when oxygen and return direction are stable.
Proof before moving on
Rebreather routes should pause at the depth check before oxygen pressure becomes the objective.
Watch this timestampIf this fails
Reset to the last confirmed landmark or objective state, then repeat only the route-critical step.
01:13Checkpoint 2: Scan each fragment and check blueprint progress immediately.Use the proof frame to separate fragment progress from general material gathering.Expand

Fragment-style proof
Use the proof frame to separate fragment progress from general material gathering.
Player action
Scan each fragment and check blueprint progress immediately.
Proof before moving on
Use the proof frame to separate fragment progress from general material gathering.
Watch this timestampIf this fails
Use the video frame as evidence, but record entry, proof, and exit as separate notes.
00:31Checkpoint 3: Abort if the route requires a depth band your current gear cannot support.Safe heading notes are critical before testing a new depth-support unlock.Expand

Safe heading
Safe heading notes are critical before testing a new depth-support unlock.
Player action
Abort if the route requires a depth band your current gear cannot support.
Proof before moving on
Safe heading notes are critical before testing a new depth-support unlock.
Watch this timestampIf this fails
Return, craft, sort storage, or retest the route before turning this page into a longer objective chain.
00:52Checkpoint 4: Craft and test the Rebreather on a known route before attempting a new deep objective.Rebreather routes should pause at the depth check before oxygen pressure becomes the objective.Expand

Depth route check
Rebreather routes should pause at the depth check before oxygen pressure becomes the objective.
Player action
Craft and test the Rebreather on a known route before attempting a new deep objective.
Proof before moving on
Rebreather routes should pause at the depth check before oxygen pressure becomes the objective.
Watch this timestampIf this fails
Reset to the last confirmed landmark or objective state, then repeat only the route-critical step.
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.

Depth route check
Rebreather routes should pause at the depth check before oxygen pressure becomes the objective.

Fragment-style proof
Use the proof frame to separate fragment progress from general material gathering.

Safe heading
Safe heading notes are critical before testing a new depth-support unlock.
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
Treat the Rebreather as a depth-support unlock. Scan the fragment route with a clean oxygen plan, confirm blueprint progress, then test the new depth margin on a known route before pushing deeper.
Visual checkpoint
Rebreather routes should pause at the depth check before oxygen pressure becomes the objective.
Map anchor
Rebreather Depth Support Route in Depth support fragment band. Use it for use this when depth pressure is blocking progress and the scan route needs a safe return plan.
Abort rule
Pushing deeper because the fragment route looked close.
Field manual translation
Treat the Rebreather as a depth-support unlock. Scan the fragment route with a clean oxygen plan, confirm blueprint progress, then test the new depth margin on a known route before pushing deeper. Use this completion route manual as a second-screen checklist: identify the entry condition, confirm the objective with a visual proof point, then stop when the return rule is met. This keeps the article practical for Early Access patches without pretending every coordinate or state is final.
Primary job
Rebreather - Start the route only when oxygen and return direction are stable.
Best entry habit
Scanner - Scan each fragment and check blueprint progress immediately.
Stop condition
Pushing deeper because the fragment route looked close. - Abort if the route requires a depth band your current gear cannot support.
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
- Scanner
- Oxygen margin
- Return 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
Start the route only when oxygen and return direction are 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.

Rebreather routes should pause at the depth check before oxygen pressure becomes the objective.
Scan each fragment and check blueprint progress immediately.
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.

Use the proof frame to separate fragment progress from general material gathering.
Abort if the route requires a depth band your current gear cannot support.
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.

Safe heading notes are critical before testing a new depth-support unlock.
Craft and test the Rebreather on a known route before attempting a new deep objective.
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.

Rebreather routes should pause at the depth check before oxygen pressure becomes the objective.
After-action plan
What to do after the guide works
Bank the result
Craft and test the Rebreather on a known route before attempting a new deep objective.
Clean the inventory
Move route-critical materials into labeled storage so the next dive starts with empty space and a clear job.
Pick the next guide
Survival habits for oxygen timers, inventory pressure, food, water, and route discipline in Subnautica 2.
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.
Best immediate follow-upOxygen and Survival Tips
Survival habits for oxygen timers, inventory pressure, food, water, and route discipline in Subnautica 2.
Use if the route branchesEquipment Blueprint Locations
A blueprint route guide for equipment unlocks, databox checks, scanner stops, and post-route crafting priorities.
Save for the next diveTadpole Depth Module Guide
A vehicle upgrade guide for Tadpole Depth Module MK1 and MK2 route planning, fragment checks, installation, and safe first tests.
Detailed notes
The Rebreather changes route math
The unlock is not just a checklist item. It changes which depth bands feel reasonable, so the first post-craft test should happen on a familiar 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.
Scan checkpoints
Good Rebreather notes show entrance, fragment proof, progress confirmation, and exit timing. If any of those are missing, players may copy the dive but not the safety logic.
Entrance
Fragment
Progress
Exit
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
Rebreather Fragment Guide should be followed as a completion route, not as a memory test. Start by watching the first route movement and naming the entry condition before copying the path in-game. Start the route only when oxygen and return direction are stable. 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. Scan each fragment and check blueprint progress immediately. If the route starts to feel different in your build, keep the same player goal: finish the unlock cleanly and know whether a return trip is needed.
Entry check: Scanner
Route action: Start the route only when oxygen and return direction are stable.
Proof to look for: scan or pickup 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. Abort if the route requires a depth band your current gear cannot support. 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 scan or pickup proof
Exit frame: know the return direction before adding side goals
Loadout frame: check Oxygen margin
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. Pushing deeper because the fragment route looked close. Ignoring blueprint progress and repeating a completed scan area. 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 completion route into better field knowledge instead of another untracked cleanup sweep.
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
Pushing deeper because the fragment route looked close.
Ignoring blueprint progress and repeating a completed scan area.
Using the new depth support before learning how it changes oxygen timing.
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.
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.
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.