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Dive into a freezing underwater adventure on an alien planet. Below Zero is set two years after the original Subnautica. Return to Planet 4546B to uncover the truth behind a deadly cover-up. Survive by building habitats, crafting tools, & diving deeper into the world of Subnautica.
✓ Supported
Solo Only
Unsupported
Keyboard & Mouse
Crowdsourced campaign length, extra objectives, and 100% completion metrics
Official high-resolution media gallery (9 screenshots)





Available game editions, collector bundles, Supporter Packs, and downloadable expansions
Official downloadable expansion or add-on content for Subnautica: Below Zero (Steam App ID #1619010).
Live pricing across official digital stores, historical lows, and subscription catalog availability
Honest player critiques with verified playtime and karma upvoting
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Troubleshooting guides, build recommendations and accepted solutions
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Key directors, leads, and game development studios