Loading...
The Overgrown Ruins is a biome on the ocean moon Proteus in Subnautica 2 featuring ancient structures overtaken by marine life. The ruins suggest a past civilization's presence, potentially the Architects.

Crafting and resource gathering in Subnautica 2, including the decimal inventory system, resource-specific nodes, Scanner radar, dual progression paths, and co-op shared blueprints.

Survival mechanics in Subnautica 2 including the inverted deep-start opening, decimal inventory, DNA adaptation, no-weapons policy, co-op survival, and the Blight environmental threat.
The Angel Comb is a large sessile Bloom-class flora organism in Subnautica 2 and the in-game source of Adaptations. Each coloured bulb grants one permanent DNA upgrade and is consumed on use.
Flares are throwable light sources in Subnautica 2 used to distract hostile creatures by exploiting the stimulus-based AI system. The primary confirmed evasion tool against the Collector Leviathan.
The Fabricator is the central crafting station in Subnautica 2, converting raw materials into tools, equipment, food, water, and components.
The creature-scanned active and passive ability system in Subnautica 2: all 15 BioMods, the four starters, how the Bioscanner unlocks the rest, and loadout advice.

Resource nodes in Subnautica 2 are material-specific gathering points that replace the randomized breakable outcrops from previous games. Combined with the decimal inventory system for precise resource tracking.
A getting-started guide to Subnautica 2: early resources, food, water and oxygen, first BioMods and Adaptations, base building, unlocking the Tadpole, and common mistakes to avoid.

Blueprints and scanning form the core progression system of Subnautica 2: most recipes are unlocked by scanning fragments found in wrecks and debris rather than being handed to the player.
The heat barrier is the 80 degree Celsius environmental gate in Subnautica 2 that blocks progress into the hottest zones until the player gains the Heat Tolerance Adaptation.
The Cerathecan in Subnautica 2: a passive shelled crustacean that grazes the seafloor, the databank mystery of its genome-less shell, and where to find it.
The Bio Lab is the base module in Subnautica 2 where BioMods are produced from collected DNA, equipped and swapped. It handles the reversible side of body modification, unlike permanent Adaptations.
The Bloom Parasite in Subnautica 2: a virus-infected cephalopod that spreads the Bloom to larger predators, where it appears, and how a resonator pulse deals with it.
The Halfmoon in Subnautica 2: the most versatile edible moon fish, its recipes including Halfmoon Jerky and Threemoon Temaki, its databank entry, and where it schools.
The Feedback Resonator in Subnautica 2: the upgraded Sonic Resonator that fires a ranged blast, where its fragments are found, what it costs to build, and what it is used against.
The Harvestmoon in Subnautica 2: the most filling of the three small moon fish at 20 food raw and 30 cooked, where its schools sit, how to catch one, and the two recipes it feeds.
The Bioscanner in Subnautica 2: the upgraded Scanner that reads Axum technology and native biology, unlocks BioMods at a Bio Lab, and opens passive BioMod slots.
The Geordie in Subnautica 2: a common edible salpapod with a jet channel through its body, its food value and cooking, and its databank biology.
The Pneuma in Subnautica 2: a kelp-mimicking edible fish that swallows rocks for ballast, its food value, and the ecological story its databank entry tells.
The Jetocaris in Subnautica 2: a passive three-legged cave crustacean with jet-propelled legs, parenting behavior, and feeding tongues, plus where to find one.
The Periscopic Clowncrab in Subnautica 2: a passive crab that hides among anemones, its glowing eye stalks, its color variant, and what its databank entry reveals.

Index of the creatures confirmed in the Subnautica 2 Early Access build: leviathans, fish, crustaceans, jellies, molluscs and salpapods, with the regions they appear in and whether they are hostile.
The Waxmoon in Subnautica 2: the giant of the moon fish family, its glowing markings, the schools that trail it, the biomes it patrols, and why it is a scan target rather than food.
The Jelly Ring in Subnautica 2: a ring-shaped colony organism that feeds on hydrothermal vents, its bioluminescent signaling, and where to find one.
The Bluemoon in Subnautica 2: the only moon fish that restores water rather than costing it, its raw and cooked values, where its schools sit, and the recipes it feeds.
The BFJ (Behemoth Finger-Legged Jelly) in Subnautica 2: a huge anchored jelly that grips rock and abandoned seabases, how its databank entry explains its gas bladders and arms, and where to find one.
The Hycean in Subnautica 2: a huge hydrogen-filled predator that floats above the ocean surface, why it is harmless to divers in the current build, and its databank biology.
The Flash Slug in Subnautica 2: a glowing slug that blinds divers with a burst of light, how to catch one anyway, and the Isotonic Water recipe it feeds.
The Black Hoverthorn in Subnautica 2: the solitary dark variant of the Hoverthorn found around the Axum Metal Farms in Root Canyon, its 15 raw and 30 cooked food values, and its shared scan entry.
The Electric Geordie in Subnautica 2: a pack hunter that latches onto the Tadpole and drains its power, how to knock one off, and the two biomods its scan feeds.
The Twin Sitaray in Subnautica 2: an aggressive electric predator that damages divers, vehicles, and vehicle power, how to read its attack cues, and what its databank explains about its paired biology.
The Epicurean in Subnautica 2: an aggressive bottom-dweller of the Karakorum runoff pools whose appetite and temper are made worse by Tongue Thief parasitism.
The Sandspear in Subnautica 2: an aggressive burrowing ambush predator, how to spot its lure, how resonators repel it, and its role in unlocking the Bioluminescence biomod.
The Bullethead in Subnautica 2: an aggressive armored squid that rams divers at high speed, how to slip past one with flares or a resonator, and the Camouflage biomod it unlocks.
The Hoverthorn in Subnautica 2: a skittish edible fish that rides its own water currents on a charge crystal, the Threat Sense biomod it unlocks, and its recipes.
The Sonic Resonator in Subnautica 2: how to unlock the blueprint, what it is built from, how it breaks hardened mineral deposits, and how it deters aggressive creatures without killing them.
The plant life of Proteus: the documented sessile-life roster, which plants are harvestable, how the Growbed works, and how Bloom growths affect Angel Combs.
The Surge Jelly in Subnautica 2: a drifting jelly that discharges a defensive electric shock, its role in unlocking the Homing Sense biomod, and how to scan one safely.