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Subnautica 2 Hammerhead Tadpole Lights Guide

Subnautica 2 Hammerhead Tadpole lights guide after Hotfix 2, with vehicle safety, base return rules, and encounter checks.

Official Subnautica 2 screenshot for the Hammerhead and Tadpole lights guide

Subnautica 2 Hammerhead Tadpole lights quick answer

Subnautica 2 Hammerhead Tadpole lights behavior changed in Hotfix 2: Hammerheads are no longer as attracted to Tadpole lights. Before the patch, that attraction could make Hammerheads follow players and even hang around bases while trying to reach the Tadpole. After the patch, you should still treat lights as a situational tool, not as a permission slip to park carelessly around wildlife.

Official patch context checked: Subnautica 2 Early Access Hotfix 2.

What changed for Hammerheads

The practical change is reduced unwanted pursuit around Tadpole lights. That matters because a vehicle can accidentally drag danger into places where players expect safety: base approaches, storage stops, and route landmarks.

Before Hotfix 2After Hotfix 2
Hammerheads could be too interested in Tadpole lights.Hammerheads are no longer as attracted to those lights.
A creature could follow the player back toward a base.This should be less likely, but still worth testing in your build.
Players needed extra caution when parking with lights active.Parking discipline still matters, especially near repeated routes.

Safe Tadpole light habits

Use Tadpole lights when visibility matters, then return to conservative habits near base or wildlife. The goal is to avoid turning your vehicle into a moving lure.

  1. Toggle or limit lights when you no longer need them for navigation.
  2. Avoid parking directly beside active wildlife.
  3. Do not lead Hammerheads along your main base approach.
  4. If a Hammerhead follows, break the route before returning home.
  5. In co-op, call the hazard early so another player does not swim into it.

The hotfix lowers a specific problem. It does not remove normal creature risk, collision risk, poor parking choices, or bad route timing.

How to test the change safely

If Hammerheads caused problems in your save before Hotfix 2, retest in a controlled loop.

Test stepWhat to doStop condition
1Start near a safe landmark outside your main base.Stop if you cannot identify a clean return path.
2Approach a known Hammerhead area with enough oxygen and power.Stop if you are already low on supplies.
3Observe behavior without trying to scan or gather.Stop if the creature follows too closely.
4Return by a side route instead of the base approach.Stop if it keeps following toward home.
5Park, wait, and confirm the area clears.Stop using that route if the area stays unsafe.

One clean test is enough for route planning. Do not keep poking the same creature just to prove the patch works.

What to do if a Hammerhead follows your Tadpole

Stay boring and predictable. Panic routes create worse problems than the first encounter.

  • Turn away from your base approach if possible.
  • Avoid leading the Hammerhead through a storage or crafting stop.
  • Keep the Tadpole moving toward open escape space.
  • Do not jump out to scan unless the route is stable.
  • If you are in co-op, have one player watch the return path while the pilot clears the vehicle route.

If the same route keeps pulling danger home, change the parking point. A slightly longer swim from a safer vehicle stop is better than training a hazard onto the front door.

Base and route planning

Hammerhead behavior affects base planning because a base is only useful if the approach stays calm enough to repeat. Keep vehicle stops away from tight chokepoints, heavy creature paths, and storage doors.

Good route signs:

  • You can see the landmark before committing.
  • You have room to turn the Tadpole around.
  • You are not parking with wildlife between you and the base.
  • Co-op teammates know which side is the safe approach.
  • The route still works if lights are off for a short stretch.

For deeper vehicle planning, read Tadpole guide and deep-dive checklist.

Hammerhead and Tadpole lights FAQ

Did Hotfix 2 remove Hammerhead attraction to Tadpole lights?

Unknown Worlds said Hammerheads are no longer as attracted to Tadpole lights. That is a behavior adjustment, not a promise that every Hammerhead route is safe.

Can Hammerheads still follow the Tadpole?

Plan as if they can still become a route hazard. The patch should reduce the specific light-attraction problem, but normal creature movement and bad parking can still create risk.

Should I turn Tadpole lights off near Hammerheads?

Use lights only when the visibility benefit is worth it. Near repeated base approaches or creature-heavy areas, conservative light use is still the safer habit.

Is it safe to park the Tadpole at my base after Hotfix 2?

Usually yes if the approach is clear, but avoid parking with wildlife close behind you. If a creature followed the route, lead it away or wait before using that entrance again.

Does this change make Hammerheads harmless?

No. It only addresses one behavior problem around Tadpole lights. Treat Hammerheads as wildlife that can disrupt routes, scans, and base approaches if you get careless.