Quick answer
To get Strong Acid, gather Necrolei Cysts around the Old Habitat route and craft them at the Processor. PC Gamer notes that Strong Acid is key for Power Cells, which are needed for the Tadpole. Keep a small reserve if your next route also includes Fiber Mesh or Rebreather prep.
Field notes for Strong Acid runs
Treat cysts as chemistry stock
Necrolei Cysts are easy to mentally file as another plant pickup. Once Strong Acid appears, they belong in the same plan as Power Cells, Processor use, and deep-route prep.
Do not craft acid without a next recipe
Strong Acid is useful, but raw cysts and Processor access are more flexible. Craft it when Power Cell, Tadpole, or a breathing-route item is the visible target.
Return from Old Habitat with a margin
The Old Habitat route already asks for attention and oxygen. If the path is safe, gather a little more than the minimum so one mistake does not force the same swim again.
Strong Acid craft route
Unlock the Processor route
PC Gamer reports that the Processor can be scanned at the Old Habitat north of the Life Pod as part of the black-box objective route. Treat the first trip as a scan and oxygen run, not a casual material swim.
Gather Necrolei Cysts nearby
The same Old Habitat region is reported as a practical place to gather Necrolei Cysts. Mark the exit path before your inventory is full, because this area is easy to overstay.
Craft with a Power Cell goal
Strong Acid matters because it feeds Power Cell crafting. If your next milestone is Tadpole, do not spend the chemistry chain just because the Processor is ready.
Check the oxygen route before spending it
Recent Rebreather and Fiber Mesh notes pull this material chain into deep-route planning. If you are about to push below your comfortable oxygen range, keep enough stock to finish the breathing kit.
Return with a buffer
If the route is safe, gather more than the minimum. Vehicle chains often need extra attempts, repairs, or backup power planning.
Chemistry-to-vehicle chain
Gather
Cysts
Necrolei Cysts are the route item to protect.
Process
Acid
Use the Processor once the station is ready.
Spend
Power
Power Cell and Tadpole prep are the main pressure points.
Strong Acid crafting chain
| Material or station | Role |
|---|---|
| Necrolei Cyst | Key gathered ingredient for Strong Acid. |
| Processor | Station used to craft Strong Acid. |
| Strong Acid | Processing material used in Power Cell crafting. |
| Fiber Mesh / Rebreather | Deep-route prep that can compete for the same chemistry plan. |
| Power Cell | Vehicle-chain item connected to Tadpole progress. |
Strong Acid is a vehicle-chain material
Do not treat Necrolei Cysts as random plants. Strong Acid feeds Power Cell planning and now sits close to the Fiber Mesh and Rebreather prep route too.
FAQ
How do you craft Strong Acid in Subnautica 2?
Gather Necrolei Cysts, unlock or use the Processor, and craft Strong Acid through the processing chain. Current reporting points players toward the Old Habitat route for both Processor and cyst planning.
Why do you need Strong Acid?
Strong Acid is used for Power Cell crafting, which is part of getting the Tadpole vehicle running. Current route planning also connects it to Fiber Mesh and Rebreather prep through the broader chemistry chain.
Where should you look for Necrolei Cysts?
PC Gamer and GamesRadar both point players toward the Old Habitat route. Bring enough oxygen margin and keep the return path clear before farming.
Should you stockpile Strong Acid?
Keep a small reserve once the route is safe. Before that, raw cysts plus Processor access are more flexible than a pile of finished acid.