To do so with any efficiency, you’ll need the rebreather. In Subnautica, you get the rebreather blueprint after unlocking the high-capacity oxygen tank. However, in Below Zero, you pick the blueprint up from a data box. 

Luckily, the rebreather schematic isn’t far from your initial base, and you can get it very early in the game. The video at the top of this guide shows you exactly where it is. 

Exit your pod and go straight; the seafloor will eventually drop off and get very deep. When this happens, dive down and hug the cliff along the way. At about 100 meters, turn right; you’ll see a data box sitting on a foundation platform typically found in a seabase. 

Swim down, open the data box, and grab the rebreather blueprint. 

How to Make the Rebreather

To craft the rebreather so that your character can dive deeper into Below Zero’s biomes, all you need is fiber mesh and a wiring kit.

You can make fiber mesh from creepvine sample x2, and a wiring kit is made from silver ore x2. 

Now you can access all of the content Below Zero has to offer in early access. For other guides for Subnautica’s pseudo-sequel, check out our Subnautica Below Zero guides hub.