What are adaptations in Subnautica 2?

Adaptations are body-modification upgrades granted by touching Angel Combs, the alien plant-creatures scattered through the Coral Gardens and Axum Ruins. There are four total: Pressure Tolerance, Digestion, Heat Tolerance and Axum Vision. They are separate from biomods. Adaptations are story-gated and permanent, biomods are slotted abilities you swap in the inventory.

How many adaptations are there in Subnautica 2?

Four adaptations in the current Early Access build: Pressure Tolerance (from the intro lifepod comb), Digestion (Coral Gardens Plateaus comb), Heat Tolerance (three Blight-shrouded juvenile combs) and Axum Vision (Central Comb in the Axum Ruins).

Do I need any tools to unlock adaptations?

Pressure Tolerance and Digestion don't need any tools. Walk up and touch the comb. Heat Tolerance requires the Sonic Resonator for the first and third Blight flowers (the second flower can be cleared without it). Axum Vision unlocks automatically after the three Heat Tolerance flowers are done.

Where is the Angel Comb that gives Pressure Tolerance?

Inside the player's crashed lifepod at the start of the game. The comb is part of the intro cinematic and triggers automatically as the player wakes up at world coordinates around (-344748, 448028, -57976). No exploration required.

Can I miss any adaptations?

No. Adaptations are story progression. The three Heat Tolerance flowers and the Axum Vision Central Comb are required to complete the main story arc. Pressure Tolerance is auto-granted during the intro. Digestion is the only one tied to overworld exploration, but the questline pings the location.

Adaptations

Four story-gated body upgrades granted by touching Angel Combs. 4 adaptations total, ranging from the intro-lifepod Pressure Tolerance to the capstone Axum Vision in the Axum Ruins.

Full walkthrough

Adaptations Video Guide

How to Unlock All Adaptations in Subnautica 2

WoWQuest

Step-by-step guide for unlocking all four adaptations: Pressure Tolerance, Digestion, Heat Tolerance (three flowers + three puzzles) and the final Axum Vision at the Central Comb.

YouTube

Angel Comb locations

5 pins: four Angel Combs (purple) plus your starting Lifepod (pink) as an orientation anchor. Each comb popup lists the adaptation it unlocks plus a one-line story-context note.

Loading map…

5 known locations for Angel CombsView on full map

Every adaptation in Subnautica 2

Each card pairs the in-game databank entry with the corresponding Angel Comb on the wiki map. Open the map and toggle the Angel Comb group to see all four pins at once.

Adaptation

Pressure Tolerance

At 100 meters below the surface, the pressure on your body is over ten times what it is on land—like an elephant standing on every square inch of you. Humans must breathe air under equal pressure or the lungs cannot inflate, but this carries severe risks: —Below 40m, the nitrogen in air becomes narcotic, causing impaired judgment, delirium, and anesthesia …

How to unlock: Touch the Angel Comb inside the lifepod wreck on the seafloor.
Story context: First-touch comb inside the crashed lifepod intro sequence. Triggers automatically as the cinematic opens, so players can't miss it.

Adaptation

Digestion

Life in this unknown ocean shares its basic genetic code with Earth. DNA letters code for amino acid words, which are joined into strings like sentences to create proteins. Pioneers can also look forward to familiar delights such as sugar, starch, fat, and alcohol. However, this world's genetic code uses different words for amino acids, creating waxy and metallic proteins. Human stomach enzymes cannot digest them. …

How to unlock: Locate the second Angel Comb in the Coral Gardens Plateaus and touch it.
Story context: Healthy adult Angel Comb on the Coral Gardens plateaus. The mature comb releases the digestion goop on direct contact.

Adaptation

Heat Tolerance

Although your AEP suit can protect you against acute hot water burns for a limited time, prolonged exposure will cook your tissue like a sous vide pork tenderloin (simile flagged for review). Human proteins are sensitive to high temperature and will swiftly unravel. Organisms that live near thermal vents can survive water above 65 degrees Celsius. Temperature may change from near 0C to above 100C in seconds. (Becaus…

How to unlock: Destroy three Blight flowers (1st and 3rd require the Sonic Resonator) then solve each accompanying puzzle to clear the juvenile combs.
Requires: Sonic Resonator (for the first and third flower)
Story context: Blight-shrouded juvenile combs scattered across the Coral Gardens. Each flower has to be destroyed before its puzzle becomes solvable, and at least two of the three need the Sonic Resonator to break through the outer Blight membrane.

Adaptation

Axum Vision

How to unlock: Return to the Central Comb in the Axum Ruins after finishing all three Heat Tolerance flower puzzles.
Requires: All three Heat Tolerance flowers cleared
Story context: Central Comb in the Axum Ruins. The capstone adaptation unlocks once all three Heat Tolerance flower puzzles are complete and the player returns to the Central Comb in the Axum Ruins.

All four Angel Combs are visible on the interactive map under the "Angel Comb" POI group.

Open the map

About Subnautica 2 adaptations

Adaptations are permanent body upgrades the player earns by touching Angel Combs: bioluminescent alien plant-creatures spread across the Coral Gardens and Axum Ruins. Each comb grants exactly one adaptation. Pressure Tolerance lets you breathe pressurised air at depth, Digestion lets you process more of the ocean's biomass safely, Heat Tolerance protects against high-temperature water near thermal vents, and Axum Vision opens an alien sense used to read the ruins.

Adaptations are separate from biomods. Biomods are slot-equipped abilities you swap mid-dive (Dash, longer oxygen, etc.) and they consume Adaptation Points earned through scanning. Adaptations themselves are story-gated unlocks granted by the comb network and apply continuously once acquired. The four adaptations in the current Early Access build cover the main story progression up to the Axum Ruins.

The video walkthrough above is the easiest way to see exact path-finding for each comb. The map markers on the interactive map give you world coordinates and biome region for cross-reference with the in-game F3 debug overlay.