How to Get Limestone in Subnautica
Look for limestone outcrops in the Safe Shallows biome – they're those small gray rocks on the sea floor. Bust 'em open with your knife for goodies like copper and titanium!
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Safe Shallows. Bang it with a knife. Done.
Just swim around the shallows, especially the Safe Shallows and Kelp Forest biomes, and look for small, grayish nodes on the walls or seabed. Smash them with your survival knife or scanner, and voila, you've got limestone!
Scan limestone outcrops with your knife or scanner tool in the Safe Shallows biome. Tip: They’re gray and kinda blend in, so keep your eyes peeled.
I've found that the best spots are in the Safe Shallows. Limestone outcrops are pretty common there, and you'll get a mix of titanium and copper.
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