Subnautica (and Subnautica 2) Motion Sickness: Why It Happens & What Helps
Underwater first-person is a special kind of trigger: Subnautica moves you on three axes at once — forward, turning, and vertical drift — with nothing solid to anchor your eyes. The original game's fixes live partly in mods; Subnautica 2's early access added an official Camera Bobbing toggle, and early-access players were reporting symptoms within days anyway.
PC, PlayStation, Xbox · first-person underwater · Partial settings · Player-reported motion-sickness risk: one of the most commonly reported triggers in gaming.
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Why Subnautica (and Subnautica 2) can trigger motion sickness
Swimming means constant pitch and drift with no ground plane, no horizon, and frequent visibility fog — your visual system loses every stable reference it normally uses. Camera bob layered on top of three-axis drift is the commonly reported breaking point, which is why the community's most popular comfort mod simply removes swim bob and tilt.
- Three-axis underwater drift with no ground reference
- Camera bobbing layered on swim motion
- Fog and open water — nothing stable to fix your eyes on
- Vehicle sections (Seamoth/Cyclops) with their own sway
Comfort settings in Subnautica (and Subnautica 2)
| Setting | Where | Recommendation |
|---|---|---|
| FOV | Options > Graphics (original Subnautica) | Raise it — the in-game slider is the main official lever |
| Camera Bobbing | Options > Accessibility (Subnautica 2 early access) | Off |
| MotionSickness mod | Nexus/Thunderstore (original, PC) | Removes swim bob, tilt, and Aurora screen shake if the official settings aren't enough |
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What helps beyond the settings
- Hug the terrain — following the seabed restores a ground plane for your eyes
- Surface regularly; the horizon at the surface is a reset button
- Shorter dives with breaks beat one long exploration session
- A sound-therapy app like Dizzout is designed to help once symptoms start — through the headphones you're already wearing
Frequently asked questions
Why does Subnautica cause such strong motion sickness?+
Underwater first-person removes every visual anchor at once: no ground plane, no horizon, three-axis drift, and fog. Your eyes report continuous floating motion your inner ear can't confirm. It's commonly reported as one of the strongest triggers in gaming — strong enough that the community's most popular mod exists purely to remove the swim bob and tilt.
Does Subnautica 2 have a motion sickness setting?+
Early access added a Camera Bobbing toggle in the Accessibility tab — turn it off first. Players still report symptoms from the three-axis drift itself, so combine it with terrain-hugging (following the seabed gives your eyes a ground plane), regular surfacing, and shorter sessions.
What's the best mod for Subnautica motion sickness?+
For the original game on PC, the community 'MotionSickness' mod removes swim bobbing, camera tilt, and the Aurora screen shake — the three commonly reported triggers the official settings don't fully cover. Console players rely on the FOV slider, terrain-hugging, and breaks instead.
Other game motion-sickness guides
Sources & further reading
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Based on publicly reported player experiences and each game's documented settings, as of July 2026. Settings menus change with updates — check your version. Game names are trademarks of their respective owners; Dizzout is not affiliated with or endorsed by them. Motion-sickness sensitivity varies by person — this is informational, not a game review or a substitute for a doctor's advice.