Cave Sulfur is needed to craft the Repair Tool, which is one of the most useful items early on in the game. Finding it is simple. Here’s how and where you can get this material in Subnautica.
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How to Get Cave Sulfur in Subnautica
Finding Cave Sulfur in Subnautica is easy. It’s the creature you’re forced to encounter when getting this material that’s the difficult part.
You can collect Cave Sulfur from Sulfur Plants. These plants can be found within caves in the Safe Shallows and Kelp Forest biomes. Since the Safe Shallows is the area your lifepod lands on, you pretty much have access to Cave Sulfurs very early on in the game.
As soon as you approach a Sulfur Plant, the Crashfish that inhabits it will swiftly swim towards you. It will then explode once it gets too close, dealing significant damage.
Once the plant is free of the Crashfish, you can then approach it to obtain a Cave Sulfur.
Dealing with the Crashfish
Aside from simply swimming as far away from the Crashfish as possible, there are other strategies you can employ to fully avoid getting damaged.
For one, you can use the Repulsion Cannon to push the Crashfish away, into a wall, making it explode away from you.
Alternatively, you can also use a Stasis Rifle, which will cause the Crashfish to stay in place. Be careful, though. The Crashfish will still explode while in the stasis field, so be sure to keep a safe distance.
There’s one more thing you can do to avoid being damaged by the Crashfish, and that’s to simply swim towards and underneath it. This will cause it to miss you and explode behind you. As long as you keep swimming forward, you should be outside its blast radius.
Items You Can Craft With the Cave Sulfur
There are only three craftable items in the game that require Cave Sulfur, but they’re all extremely important in terms of progression and exploration.
- Flares (5) – 1x Cave Sulfur
- Laser Cutter – 1x Battery, 1x Titanium, 2x Diamond, 1x Cave Sulfur
- Repair Tool – 1x Silicone Rubber, 1x Titanium, 1x Cave Sulfur
