Subnautica 2 Complete Guide: Early Access Hub (2026)

Updated 2026-10-14: corrected after a fact check against the official Subnautica 2 wiki and Unknown Worlds' patch notes. Earlier versions told players to build a "Fabrication module" (there isn't one; you build a Fabricator inside a seabase), called the Scanner Station a "Scanner Room" with range upgrades (its upgrades add filters), and listed an oxygen network that doesn't exist (a powered seabase makes the oxygen). We also added the biome count from the wiki and removed a full-release price increase we couldn't source.

Key takeaways

• $29.99 in Early Access on Steam and Xbox, and on Game Pass from day one.
• Up to four players online with cross-play. One Tadpole can carry the group.
• 13 biomes in three regions per the official wiki; Root Canyon (364 to 750m) is the deepest you can reach.
• Leviathans can't be killed. You avoid, distract or stun them.
• Buddy System is live: proximity voice chat, Tracking Tag, revives, emotes, trading, two new characters and a Feedback Resonator that now stuns creatures.
• Developer: Unknown Worlds Entertainment, owned by Krafton.

Screenshot: Subnautica 2 (Unknown Worlds)

• Subnautica 2 Scanner Room: Build the Scanner Station: Subnautica 2 scanner room is called the Scanner Station: where to find the fragment, the...
• Subnautica 2 Food Guide: Digestion, Fish, and Easy Meals: Subnautica 2 food guide: fix Digestive Incompatibility, cook fish, grow Fibrous Pulp, and build a reliable meal plan for solo or co-op dives.
• Subnautica 2 Oxygen Guide: Dive Planning and Survival: Subnautica 2 oxygen management explained: tank upgrade path, when to turn back, depth zones, Tadpole air supply, base placement, and co-op oxygen rules.
• Subnautica 2 How Long to Beat: EA Story Length (2026): Subnautica 2 how long to beat: current Early Access playtime, co-op pacing, exploration scope, and how the current build ends.

What is Subnautica 2?

Subnautica 2 is a first-person underwater survival game on a new alien ocean world. You gather resources, build seabases, explore biomes at increasing depths and steer around creatures you mostly can't fight. It plays in co-op for up to four people, and the Tadpole is the vehicle you'll build first.

Unknown Worlds made the original Subnautica and is developing Subnautica 2 under Krafton's ownership. The Early Access build is the start of a bigger game: the Tar Delta region, once called Sparse Plains, is still largely unfinished and mostly sits past the Early Access barrier.

• Subnautica 2 EULA Explained: What Krafton's Terms Mean: the controversy over the Krafton EULA: no VPN, fan art licensing, arbitration clause, and what it means for early access buyers.
• Subnautica 2 Lore: Story, Connections and What's Next: the Observatory story endpoint, Ryley Robinson's absence, how Sub2 connects to the original, and what the Alien Ruins hint at next.

Subnautica 2 complete guide: survival basics

Three systems run your first hours: oxygen, food, and crafting.

Oxygen governs every dive. You start with a limited tank, and most early decisions run through it: how deep to go, how long to stay, where to put your base. A seabase refills your air, but only while it has power; when the power runs out, the base stops making oxygen. That's why the first base needs a generator, not just a room.

Food and water come from what you catch and grow. The Fabricator cooks fish like Halfmoon and Bluemoon and turns them into prepared meals, so a base with a Fabricator also solves dinner.

Crafting is where new players get stuck. The Fabricator in your Lifepod is corrupted and can't synthesize advanced recipes. Build a Fabricator inside a seabase with the Habitat Builder (1 Titanium, 1 Copper, 1 Quartz) as soon as you can. In co-op, that's the shared base's first job.

GODEEPER: Oxygen management is the survival skill that separates consistent progress from repeated deaths at inconvenient depths. Subnautica 2 Oxygen Guide: Dive Planning and Survival →

• Subnautica 2 Beginner Guide: Systems, Survival, First Hours: first-session habits that avoid the most common early deaths and wasted time.
• Subnautica 2 Food Guide: How to Feed Your Crew Underwater: how to sustain four players: fish vs slugs, Fabricator advantage, co-op food roles, and when to build the biofarm.

Biomes and exploration

The official wiki splits the map into three regions with 13 biomes. Coral Gardens holds the eight starting biomes, including the Shallows (0 to 224m) where your Lifepod lands, the Plateaus, the Graveyard and Dolerite Spires. Karakorum Ruins holds the Karakorum Metal Farms, Overgrown Ruins and Root Canyon, the deepest reachable biome at 364 to 750m. Tar Delta, with the Intermediary Basin and the Void, is the unfinished frontier.

Past the Early Access barrier lies the Void, and the moment you cross it a Shiver Leviathan and her pack of males appear. The males chase you at speed. Don't go there to explore; there's nothing to find yet.

Depth matters for gear more than for the map. Your Tadpole's default crush depth is 250m, and you need the Depth Module Mk. 1 to reach 450m. Plan a route into Root Canyon around that.

• Subnautica 2 Biomes Guide: Exploration Zones Ranked (2026): what each currently documented biome contains, when to visit, and what resources and creatures are associated with each zone.

Creatures and Leviathans

Treat creatures as a route problem. Leviathans can't be killed. There are two Collector Leviathans, one over the Karakorum Metal Farms and one in the Intermediary Basin trench; a Collector that grabs you on foot kills you, and it can grab and throw a Tadpole. Distraction Flares draw its attention, and in a group it tends to go after the Tadpole that's lagging behind.

Your tools are deterrents, not weapons. The Sonic Resonator and the Buddy System's reworked Feedback Resonator, which now stuns creatures instead of scaring them off, buy you a few seconds. Biomods like Camouflage do the rest. Every Early Access patch can change creature behavior, so check the patch section below when something stops working.

GODEEPER: The Collector and the Shiver have specific detection mechanics and patrol resets that make them manageable once you know them. Subnautica 2 Leviathan Guide: Avoid, Scan, Survive →

• Subnautica 2 Creature Guide: All Leviathans and Fauna: full catalog of fauna by biome with behavior notes, detection ranges, and how to move through occupied zones.
• Subnautica 2 Immortal Creatures: Why You Can't Kill Fauna: the design rationale, what Unknown Worlds said, practical survival strategies for aggressive encounters, and what the modding community built in response.
• Subnautica 2 Weapons Guide: No Knife, How to Defend Yourself: what tools exist in the EA build, why there's no knife or Stasis Rifle, and the step-by-step approach to surviving Hammerhead encounters without combat options.
• Subnautica 2 Creature Evasion: 4 Biomods That Actually Work: Camouflage, Electric Discharge, Chum Cloud, and Dash explained with creature-specific compatibility tables showing which tools work on which Leviathan.
• Subnautica 2 Collector Leviathan: Scan, Escape & Where: Subnautica 2 Collector Leviathan: where it patrols, how its sonar-pulse grab works, how to bio-scan...
• Subnautica 2 Shiver Leviathan: The Void: Subnautica 2 Shiver Leviathan guide: the female-plus-males pack guarding the Void, why your Tadpole dies...
• Subnautica 2 Great Jaw: The Trap You Loot, Not Fight: Subnautica 2 Great Jaw leviathan: the Venus-flytrap clam in Dolerite Spires, why you avoid its...

Base building

Your base is where you craft, store and breathe. A seabase makes oxygen as long as it has power, and it's the only place to build the Fabricator that handles advanced recipes.

Build order: a compartment, a Fabricator and lockers next to it (the Fabricator pulls ingredients from your inventory and from base lockers), then a generator. Solar Panels come with the Habitat Builder and give 8 energy a second in daylight above 200m. Deeper bases need a Hydroelectric Turbine or a Thermal Plant linked with Power Transmitters.

In co-op, everyone shares the base and its power, and since Buddy System a downed player can reprint at their assigned Biobed. Inventories stay personal, so use lockers and the new direct trading to move gear.

• Subnautica 2 Base Building Guide: Location and Setup: first base placement decision tree, module priorities, and what to build before going deeper.
• Subnautica 2 Base Building Advanced Guide: Power and Depth: which generator to build below 200m, how Power Transmitters link turbines and thermal plants, and why a base runs out of air.

Screenshot: Subnautica 2 (Unknown Worlds)

DNA modification

Subnautica 2's upgrade system runs on creature DNA. You scan fauna with the Bioscanner and turn what you learn into Biomods such as Camouflage, which is the closest thing the game has to a defensive build. Each region's fauna leads to different modifications, so a player who never leaves the Shallows misses most of them. Our DNA and Biomod guides below have the specifics.

• Subnautica 2 Creature DNA: Bioscanner and Biomods Guide: creature-by-creature DNA yield guide with which samples to prioritize for each modification path.
• Subnautica 2 Angel Comb Locations: All 4 Adaptations Found: all 4 Angel Comb locations, the Bloom Node puzzle, and why Adaptations are required.

Vehicles and mobility

The Tadpole is the only submersible in the current build, and it's modular. You build it at a Vehicle Fabricator on the edge of a Moonpool, then dock one chassis at a time: the Haul Chassis carries four players and adds 30 slots of storage, while the Scout Ray is the fast option. The base Tadpole reaches 250m; the Depth Module Mk. 1 takes it to 450m.

In co-op you don't need one sub per player. Teammates can hold the Tadpole's side handlebars, and the Haul Chassis seats the whole group of four.

• Subnautica 2 Vehicles Guide: Submersibles in Early Access: Tadpole build cost, upgrade path, internal storage, and how it changes dive range calculations compared to swimming.
• Subnautica 2 Tadpole Upgrades: 7 Locations and Effects: seven current survival upgrades, including Scout Ray and Haul chassis, module locations, limits, and the Creative-only Mk.2 distinction.

Co-op and multiplayer

Co-op supports up to four players online with cross-play between PC and Xbox. Buddy System made it a lot friendlier: proximity voice chat, a Tracking Tag to find each other, revives that let a downed player keep their equipment and get a little oxygen back, emotes, and direct inventory trading.

What still needs a plan: everyone tracks their own oxygen, and the base's power is shared, so four people crafting at once can drain a solar-only base. Split the jobs (one builds, the others gather) and agree on a turn-back point before deep dives.

• Subnautica 2 Co-op Guide: Setup, Roles, and Strategy: session setup, Builder/Explorer role split, Leviathan group evasion, oxygen coordination, and the 4-player vs 2-player efficiency difference.

Subnautica 2 complete guide: Scanner Room

Subnautica 2's version of the Scanner Room is the Scanner Station, an interior facility for your seabase. It scans a 300m sphere for one filter at a time (titanium, copper, gold and so on) and lets you set a HUD signal to any result. It draws 10 energy a second, more than a Solar Panel makes in daylight, so give it a real generator. Upgrades don't add range; Recipe Data Cards add new filters such as anomalies and Cicada debris. You unlock the blueprint by scanning a Scanner Station at Camp One or the Old Habitat.

• Subnautica 2 Scanner Room Guide: Upgrades and Efficient Use: where to find the blueprint, which filters to unlock, and how to power it.

Subnautica 2 complete guide: how long to beat

There's no finished story to time yet. The current Early Access build ends at the Early Access barrier, and the useful question is how much of today's content you want to see before the next update. Our how-long-to-beat page has the playstyle breakdown.

• Subnautica 2 How Long to Beat: EA Story Length (2026): detailed time breakdowns by playstyle: story only, full exploration, completionist, and co-op.

Early Access patches

*Video: Early Access 1.2 Buddy System update vlog, Subnautica on YouTube*

Early Access 1.2, Buddy System (August 19, 2026): cross-platform proximity voice chat, Tracking Tag, player revives that keep equipment and restore some oxygen, emotes, direct inventory exchange, the Jegna and Grace characters, base placement improvements, recipe pinning, and a Feedback Resonator that stuns creatures instead of making them flee.

Buddy System Hotfix 1 (September 1, 2026): localization fixes, lower-canyon Collector Leviathan pathing, save and build-branch fixes, and inventory sharing while riding a Tadpole blocked.

Buddy System Hotfix 2 (October 6, 2026): fixes for Tadpole docking orientations, destroyed Tadpoles with a chassis attached, and Hydroelectric Turbines producing the wrong power after being streamed out and back in.

All Subnautica 2 guides

All guides and patch coverage for the current Early Access build:

• Subnautica 2 Patch Notes: Adaptive Measures Update (2026): earlier EA 1.1 coverage; compare it with the newer Buddy System update below.
• Subnautica 2 Hotfix 2: Full Patch Notes and Changes: earlier resource, vehicle, and crash fixes; use the official hotfix link in References for the latest current state.
• Subnautica 2 Update: Hotfix 3 Changes & What's Coming Next: Full list of Hotfix 3 changes: Interior Wall cost cut, Nibbler adjustments, DLSS 4.5, and what followed it.
• Buddy System update: proximity chat, tracking, revives, trading, characters, and base changes in EA 1.2; see the official source in References.
• Subnautica 2 Gold Farming: 4 Locations That Work (2026): where gold actually spawns, what it crafts into, and the Metal Farm loop that ends the manual grind.
• 8 Best Subnautica 2 Mods for Early Access 1.2 (2026): 8 best Subnautica 2 mods for Early Access 1.2: current CurseForge and Nexus picks for inventory, vehicles, HUD, scanner, growbeds, and building.
• Subnautica 2 Creature DNA: Bioscanner and Biomods Guide: Subnautica 2 creature DNA guide: how the Bioscanner, Biomods, Biolabs
• Subnautica 2 Weapons: What You Use Instead of a Knife: Subnautica 2 weapons guide: current Early Access tools, Sonic Resonator stun, Multitool deterrence, evasive tactics, and the 2026 patch changes.
• Subnautica 2 EULA Explained: What Krafton's Terms Mean: Subnautica 2 EULA explained: arbitration, IP-location rules, and player-submitted content.
• Subnautica 2 Beginner Guide: Systems, Survival, First Hours: Subnautica 2 beginner guide: oxygen, Bioscanner scans, Biomods, food, base power, and five safe-start habits for the Early Access build and co-op.
• Subnautica 2 Angel Comb Locations: All 4 Adaptations Found: Subnautica 2 Angel Comb locations: all 4 confirmed spots with exact depths, Bloom Node distances
• Subnautica 2 Lore: Ryley Robinson, Alien Ruins Explained: Subnautica 2 lore: new planet, no confirmed Ryley Robinson, Observatory story endpoint, Alien Ruins, and the current 1.2 Early Access status.

Frequently Asked Questions

Is Subnautica 2 out now? Yes. It launched in Early Access on May 14, 2026 on PC and Xbox Series X|S, and on Game Pass the same day.

Can you kill creatures in Subnautica 2? Not the Leviathans. You avoid, distract or stun them with Distraction Flares, the Sonic Resonator and the Feedback Resonator.

How many players can play co-op in Subnautica 2? Up to four, with cross-play. One Tadpole can carry everyone if you add the Haul Chassis.

What is the Subnautica 2 price? $29.99 in Early Access, or included with Game Pass Ultimate and PC Game Pass.

How many biomes are in Subnautica 2 Early Access? Thirteen across three regions, per the official wiki. Root Canyon is the deepest one you can reach.

Who made Subnautica 2? Unknown Worlds Entertainment, owned by Krafton.

Related Reading

• All Subnautica 2 coverage: every Subnautica 2 guide, review, and news post published on GameBrief, in one index.
• Subnautica 2 Beginner Guide: Systems, Survival, First Hours: Subnautica 2 beginner guide: oxygen, DNA modification, food, base timing, and the 5 mistakes new.
• Best Early Access Games Worth Buying Right Now: May 2026: Early access games worth buying in May 2026: six picks including Windrose and Subnautica 2,.

References

• Subnautica 2 on Steam: current price, review snapshot, Early Access status, co-op, biomes, creatures, and craftables.
• Unknown Worlds Buddy System update: official EA 1.2 feature list and co-op changes.
• Unknown Worlds Buddy System hotfix 1: official September 1 fixes for localization, saves, bases, inventory, and lower-canyon behavior.
• Unknown Worlds Entertainment: developer site, devlogs, and Early Access roadmap updates.