Subnautica 2 Early Access Map Size and All Biomes

Futuristic underwater base with glowing lights, surrounded by colorful coral and marine life. The scene conveys a sense of exploration and wonder.
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By Alexandria LopezStaff Writer

Futuristic underwater base with glowing lights, surrounded by colorful coral and marine life. The scene conveys a sense of exploration and wonder.
  • Primary Subject: Subnautica 2
  • Key Update: Unknown Worlds confirms the final version of Subnautica 2 will have a map significantly larger than both previous titles, though Early Access starts with a smaller subset of biomes.
  • Status: Confirmed
  • Last Verified: May 14, 2026
  • Quick Answer: Subnautica 2’s final map will surpass its predecessors in size. Early Access features core areas like the Star Zone and Coral Gardens, with more added over time.

Curious about how much of Subnautica 2 there is to explore?

After a long legal battle, fans will finally be able to play Subnautica 2's early access from May 14. This underwater exploration-focused survival sim will feature co-op, allowing players to explore the trenches of the deep sea with friends.

Here's what we know about the new game's map and biomes.

How Big Will Subnautica 2's Map Be?

According to Unknown Worlds, the map of Subnautica 2 will be considerably larger than the maps of both the first Subnautica and Subnautica Below Zero.

Underwater scene in a video game, depicting a player's view handling controls. Vibrant alien fauna, including large purple jellyfish-like creatures, float nearby.
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Credit: Unknown Worlds Entertainment

However, take note that they are talking about the final maps. As Subnautica 2 is releasing in Early Access, you might feel like it has a smaller map than the previous two titles to begin with.

READ MORE: Does Subnautica 2 Have Multiplayer and Crossplay?

While this may be the case initially, the devs intend to add more areas and biomes with future updates. So in the grand scheme of things, Subnautica 2 will ultimately have a larger map - you just won't notice it at first.

All Confirmed Biomes in Subnautica 2 So Far

Some areas have already been revealed to players through trailers. The first area is currently known as the Star Zone, where players will start underwater and work their way upwards.

Underwater scene with an orange glow, showing a small, futuristic submarine surrounded by schools of fish. Lush sea flora and glowing coral add to the vibrant, mysterious atmosphere.
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Credit: Unknown Worlds Entertainment

Other biomes include the Coral Gardens, which have the sub-regions, Graveyard Spires, and Dolerite Spires. The Kelp Forest is another biome, which fans might recognize from the first Subnautica title.

READ MORE: Subnautica 2 PC System Requirements & Specifications

The Void is the biome at the furthest trenches of the map, where players will encounter the terrifying Leviathans. These are hostile and extremely dangerous. The Void serves as the ecological end zone, with no biodiversity or resources that meet the eye.

Here are all the confirmed biomes in Subnautica 2:

  • Start Zone
  • Coral Gardens
  • The Kelp Forest
  • The Void
  • Safe Shallows
  • Jelly Plateaus
  • Overgrown Ruins

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