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The co-op successor to the acclaimed underwater survival game. Up to 4 players explore an alien ocean world, manage oxygen, construct underwater bases, and survive encounters with massive leviathan-class creatures. New DNA modification system lets players splice alien traits for survival advantages.
Why It Matters
Subnautica 2 carries one of the strongest brand names in indie survival gaming into Early Access co-op — the original remains a benchmark of atmospheric exploration. Co-op is the most-requested feature from the original's fanbase.
Subnautica 2 biomes mapped by depth, threat level, and purpose — all 6 EA launch zones ranked with Leviathan locations and exploration order.
11 min readSubnautica 2 tips for your first hours of Early Access — no-map navigation, when to build your base, co-op role splits, and reading Leviathan zone signals.
8 min readSubnautica 2 creature guide: all confirmed fauna at EA launch, Leviathan zone behavior, threat levels by biome, and what to scan first on May 14.
10 min read2018-01-23
Subnautica launches
Underwater survival landmark.
2021-05-14
Below Zero launches
Arctic follow-up with co-op hints.
2026
Subnautica 2 Early Access
Full co-op up to 4 players.