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Thermal Spires

The deep volcanic biome of Subnautica 2. The Thermal Spires, its extreme depth, and its rewards.

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Verifiedfor Current version
Checked by HostedGG Team on Jun 18, 2026
Updated 3 months ago
Biome
Thermal Spires
Biome
Thermal Spires
Depth
400–1,200m

The Thermal Spires is the deepest launch biome, a volcanic zone running from about 400 down past 1,200 meters. The pressure is brutal, so you need depth upgrades and the right vehicle, but the rewards and resources down here are the best in the current build.

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Current version
Verified for
Jun 18, 2026
Checked
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