Subnautica 2 Night Survival Guide — Tips & Light Sources

What Changes at Night?

Visibility drops significantly at sunset

Deep underwater areas are extremely dark at night

Night significantly impacts exploration:

• Visibility drops dramatically — underwater areas are pitch-black
• Predators are more aggressive (check your Status Gauge for “Hostile Fauna” danger level)
• Navigation becomes much harder without light sources

Survival Tips

Hostile fauna is more dangerous at night

Light Sources

Sleep through night — wait for sunrise

Source	How to Get
Flashlight	Craft at Fabricator (Copper x1)
Vehicle Headlights	Default on Tadpole
Base Spotlights	Build with Habitat Builder
Wakemaker	Sleep through the night

Stay Near Base

Light up your base with Spotlights

Beacons remain visible at night

Battery Management

Keep extra batteries charged

Spotlights illuminate your base perimeter

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The Bottom Line: This is the kind of mechanic that seems obvious after you know it, but the game sure as hell won’t tell you upfront. I learned most of this the hard way — by drowning, starving, or getting eaten. The systems in Subnautica 2 are deep but fair. Once you understand how they work, survival stops being a struggle and starts being a strategy. And that’s when the real fun begins.