✅ Verified for Subnautica 2 Early Access — October 2026
Subnautica 2 launched into Early Access on May 14, 2026 — the most-wishlisted game on Steam, with over 400,000 players diving in within 45 minutes and 90% positive reviews. For the first time in series history, you can explore an alien ocean with up to three friends. This guide covers your first 60 minutes, the oxygen-first mindset, the crafting progression that keeps you alive deeper, base building, co-op tips, and the mistakes that end dives early. Written for the current Early Access build — the game will grow over its 2–3 year Early Access run.
What Subnautica 2 Is in 2026
Subnautica 2 is the underwater survival adventure from Unknown Worlds Entertainment (published by Krafton), the third entry after Subnautica (2018) and Below Zero. It entered Early Access on May 14, 2026 at an introductory $29.99 on Steam, the Epic Games Store, the Microsoft Store, and Xbox Series X|S — with day-one availability on PC Game Pass and Game Pass Ultimate. The price will rise at the 1.0 release, expected in roughly 2–3 years. There is no PlayStation version during Early Access.
You play as a Pioneer aboard the ship CICADA, part of Alterra’s deep-space colonization program. When the mission goes wrong over a brand-new alien ocean world (not Planet 4546B), you are stranded — and the ship’s AI keeps pushing the mission regardless. The headline feature: 4-player online co-op with cross-platform play across Steam, Epic, Xbox, and Game Pass. Solo remains a full experience. Launch numbers tell the story: 413,000 players in the first 45 minutes, a 651,000 peak, and over 5 million pre-launch Steam wishlists.
Before You Start: Five Decisions
1. Solo or co-op
Solo is the classic Subnautica experience: tense, lonely, yours. Co-op (drop-in, up to 4 players) makes deep dives safer — a buddy can revive you and share oxygen — but splits resources. First-timers should play the opening hours solo to learn the loop, then invite friends.
2. Game Pass vs. buying
On Game Pass Ultimate or PC Game Pass, it costs nothing extra. Buying at $29.99 locks the lower price before the 1.0 increase and works on Steam/Epic, where the modding and community ecosystem lives.
3. It is Early Access — set expectations
Unknown Worlds calls this their biggest and most polished Early Access launch, but it is still Early Access: systems will change, balance will shift, and Unknown Worlds has not confirmed that Early Access saves fully carry over to 1.0. Play to enjoy now, not to perfect a forever-save.
4. Performance
Minimum spec targets 12GB RAM for 1080p/30fps — higher than the original. If your PC is borderline, start on lower settings; underwater volumetrics are the biggest frame cost.
5. Save often, in slots
Save before every deep dive, in rotating slots. Leviathans do not care about your plans.
Your First 60 Minutes: Step by Step
Minutes 0–15: Oxygen first, always
You start in the shallows near your life pod. Your entire existence is the oxygen meter. Swim down, grab what you see, and surface before it hits 30. Priorities: acid mushrooms and copper ore (limestone outcrops), quartz (shallow caves), and creepvine samples. Punch fish or catch bladderfish — they convert to water, your other lifeline.
Minutes 15–30: Scanner and basic tools
Craft the scanner first — scanning flora, fauna, and fragments unlocks the tech tree and teaches you the world. Then the survival knife (defense, harvesting) and repair tool. Scan everything; knowledge is progression.
Minutes 30–45: The Habitat Builder changes everything
Unlock and craft the habitat builder. Your first base: a tube compartment + hatch near the shallows, with a fabricator inside and a solar panel outside for power. A base means storage, crafting without the pod queue, and a respawn-safe harbor.
Minutes 45–60: Go deeper on purpose
With fins, a tank upgrade, and the scanner, push to the edge of the shallows. Watch for the seaglide fragments — the seaglide is the single biggest mobility upgrade in the early game, turning swims into zips. Mark your base with a beacon before you roam; the ocean is disorienting.
Oxygen Is Everything
Every decision in Subnautica 2 is an oxygen decision. The rules:
Upgrade tanks early. Standard tank → high-capacity tank as soon as you can craft it. More seconds per dive compounds into everything.
Learn the 30% rule. Turn back at 30% oxygen, not 10%. Currents, detours, and surprises eat the margin.
Pipes and pumps. Air pumps with pipes create underwater air stations for long harvest runs — old Subnautica wisdom that still applies.
Vehicles extend you. Submersibles carry their own oxygen supply. Getting your first vehicle is effectively doubling your dive time.
Crafting Progression: The Survival Ladder
Progress in Subnautica 2 is a ladder — each rung unlocks the next depth:
Rung 1 — Survive: scanner, knife, fins, standard tank, repair tool. Live in the shallows comfortably.
Rung 2 — Explore: seaglide, high-capacity tank, habitat builder, compass. Push into mid-depth biomes and scan fragments for vehicle blueprints.
Rung 3 — Settle: full base with power (solar → thermal/bio as you go deeper), water filtration, storage, and a moonpool/vehicle bay. Stockpile for expeditions.
Rung 4 — Descend: depth modules, upgraded vehicles, and the gear for the deep zones where leviathans patrol. Never descend without a way back up fast.
Scan fragments everywhere — blueprints gate your progress more than resources do. If you are stuck, you are probably missing a scan, not a material.
Base Building That Works
Build your first base shallow, near thermal vents or sunlight, close to multiple biomes. Essentials in order: hatch, solar panel, fabricator, storage lockers, radio (story progression), and a beacon. Later: water filtration (infinite water), alien containment (food/farming), and scanner room (finds resources for you). Reinforce hull integrity as you add compartments — a collapsing base floods.
Power scales with depth: solar dies below sunlight, so plan thermal or bioreactor power for deep outposts. Small forward outposts (one tube + hatch + locker + beacon) at biome borders save endless return trips.
Biomes: Where to Go and When
Subnautica 2’s ocean is layered by depth and danger. The progression roughly follows:
The Shallows (0–80m) — home
Safe, sunlit, resource-rich. Acid mushrooms, copper, quartz, and creepvine. Build your first base here. Nothing here can kill a careful diver — learn the loop in peace.
Kelp and reef zones (50–150m) — first expeditions
Denser resources, first real predators. Bring the seaglide and a knife. Scan every fragment — vehicle blueprints hide here. Set beacons at anything interesting; you will return with better gear.
Mid-depth trenches (150–300m) — the gear check
Light fades, pressure builds, and leviathan-class signatures appear on the edge of sonar. Do not enter without: a vehicle, depth module, spare oxygen, and a beacon trail home. Harvest runs here fund your late game.
The deep zones (300m+) — endgame
Total darkness, crushing pressure, apex predators. This is where the story’s answers live — and where unprepared divers die. Full vehicle upgrades, multiple air stations, and a co-op buddy are the entry ticket. During Early Access, expect these zones to expand with updates.
Reading the water
The game telegraphs danger: roars mean patrols, sudden silence means something scared everything else away, and thermal vents mean both resources and risk. Trust your ears more than your eyes — sound travels farther than light underwater.
Co-op: Diving With Friends
Subnautica 2’s 4-player co-op is drop-in: friends join your world and share it. What works:
Divide roles. One scans and maps, one harvests, one builds, one scouts deep. Four generalists waste time; four specialists fly.
Share oxygen discipline. The buddy system is real — stay in visual range on deep dives. A friend with a spare tank has saved more divers than any upgrade.
One base, one vision. Agree on the main base location early. Satellite outposts are cheap; moving a main base is not.
Cross-platform just works. Steam, Epic, Xbox, and Game Pass players dive together through in-game invites — no same-store requirement.
Leviathans and Staying Alive
The ocean’s apex predators patrol the deep. Rules of engagement: listen (roars telegraph patrols — sound is your radar), watch the water (silhouettes before shapes), never fight what you can outrun (the seaglide and vehicles beat teeth), and always have an exit (know where the surface or your vehicle is before engaging with anything). Decoys and flares buy seconds; seconds buy life. The reaper-style ambush predators punish greed — if a wreck looks too quiet, it is bait.
What Early Access Means for Your Playthrough
Unknown Worlds plans 2–3 years of Early Access with major content drops and community-driven patches via a public feedback board. Expect: new biomes, creatures, story chapters, and balance passes. The roadmap already promises the return of fan-favorite features and scarier deep zones. Treat guides (including this one) as living documents — verify against the current build, and check the in-game feedback board for what is changing next.
Story: What We Know So Far
Without spoiling the discoveries waiting in the deep: you are a Pioneer aboard the CICADA, an Alterra colonization vessel that suffers a catastrophic failure over an uncharted ocean world. The ship’s AI continues to pursue the colonization mission even as you fight to survive it — a tension that drives the Early Access narrative. Unlike the original Subnautica’s Planet 4546B, this is a new world with new biomes, new creatures, and new mysteries. Radio-style story delivery returns in evolved form, and Unknown Worlds is adding story chapters through the Early Access roadmap. Explore deliberately, read every log, and let the ocean tell you its story at your own pace — the best Subnautica moments are the ones you stumble into.
Beginner Mistakes That End Dives
Chasing “one more resource” at 20% oxygen. The ocean collects this tax in corpses. The 30% rule exists because of this exact impulse.
Skipping the scanner. Unscanned fragments mean locked blueprints mean stalled progression. Scan first, ask later.
Building the main base too deep, too early. Deep bases need deep power and deep defense. Shallow first, forward outposts later.
Ignoring beacons. Every wreck, cave, and outpost gets a beacon. The ocean has no landmarks; beacons are your map.
Hoarding instead of upgrading. Resources in lockers do not keep you alive. Spend them on tanks, vehicles, and depth modules.
Assuming Early Access saves are forever. Play hard, enjoy it, but keep expectations honest about 1.0 carryover.
Keep Surviving: More Beginner Guides
Back on dry land? Try these survival worlds next:
- Valheim 1.0 Beginner Guide 2026 — exploration-driven co-op survival, your first 10 days
- Rust Beginner Guide 2026 — brutal multiplayer survival, your first wipe
- Enshrouded 1.0 Beginner Guide 2026 — fantasy survival RPG with expressive building
Frequently Asked Questions
How much does Subnautica 2 cost?
$29.99 USD on Steam, Epic Games Store, Microsoft Store, and Xbox during Early Access, with regional pricing. The price will increase at the 1.0 release. It is included with PC Game Pass and Game Pass Ultimate.
Is Subnautica 2 on PS5?
Not during Early Access. PlayStation players will need to wait for the full 1.0 release — Sony has no Early Access program comparable to Steam or Xbox Game Preview.
Does Subnautica 2 have multiplayer?
Yes — 4-player online co-op with cross-platform play across Steam, Epic, Xbox Series X|S, and Game Pass. Solo remains a complete experience.
How long will Subnautica 2 be in Early Access?
Unknown Worlds estimates 2–3 years, placing the 1.0 release around 2027–2028, with major content updates throughout.
Will my Early Access save carry over to 1.0?
Unknown Worlds has not officially confirmed full save carryover to the final release. Enjoy the Early Access journey without assuming permanence.
Is Subnautica 2 on Game Pass?
Yes — day-one on PC Game Pass and Xbox Game Pass Ultimate as a Game Preview title. Essential and Premium tier subscribers need to buy it separately, but the $29.99 Early Access price locks in before the 1.0 increase.