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Subnautica 2

ActionAdventurePCSolo · Co-op · MultiplayerBuy · from $29.99

About this game

Subnautica 2 is an underwater survival adventure set on an all-new alien world, developed by Unknown Worlds.

Last checked 3 Nov 2026

Available since (your time)
Player receptionVery Positive93% positive · 73.2K Steam reviews ↗

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Subnautica 2

Subnautica 2 is an underwater survival adventure set on an all-new alien world, developed by Unknown Worlds.

Player reception: Very Positive · 93% positive · 73.2K Steam reviews

Available on Steam (PC) — Buy · from $29.99, checked 3 Nov 2026.

More about Subnautica 2

Subnautica 2 is an underwater survival adventure set on an all-new alien world, developed by Unknown Worlds. Players are stranded on the alien planet Alterra after their colony ship CICADA malfunctions, forcing them to survive with a mission-driven AI. The game emphasizes solo exploration or co-op with up to three friends, featuring customizable characters and base-building. Players traverse biomes using a Tadpole submersible, study alien ecosystems, and uncover the planet's secrets while navigating the AI's persistent mission. Early Access development includes iterative world expansion and community feedback integration.

Availability historyPast official availability changes
  • BuySteam · PC · 22 Sep 2026