Players diving deeper in Subnautica 2 are hitting a wall fast: oxygen burns through quicker the further down you go, and without the Rebreather, those deep-water excursions turn into panicked sprints back to the surface. The good news is the blueprint is locked behind a single scan, not a multi-step unlock chain. The bad news is you have to know exactly where to look.
The bunker you need to find first
The Rebreather blueprint sits inside the Colonist Bunker (Unauthorized NoA Modification), roughly 88 meters below the surface and about 400 meters southwest of your starting lifepod. Head southwest from your drop point and look for a wreckage at around 80 meters depth. The bunker is built directly into a cave wall nearby, and you can swim straight through the entrance.
You only need to scan the Rebreather once. That single scan permanently unlocks the crafting blueprint, so there is no reason to hold onto the item you find inside.
What the crafting recipe actually requires
Here is the thing most players miss: the Rebreather recipe itself is short, but the components need their own materials to craft first. The finished Rebreather takes 2x Fiber Mesh and 1x System Chip. Working back from there, you will want to gather the following before heading to your fabricator:
- 8x Fibrous Pulp (for Fiber Mesh)
- 2x Cysts (for Fiber Mesh)
- 2x Quartz
- 2x Copper
- 2x Silver
Quartz and Copper are easy to source near your lifepod. Silver takes a little more hunting, and Fibrous Pulp comes from cutting down Whip Gorgon plants. Cysts require a specific scan of their own before they show up as a usable resource.
You also need a fully functioning fabricator and a Processor to complete the crafting chain. If you have not set those up yet, the Rebreather will have to wait.
Why the Rebreather matters for going deeper
Subnautica 2 punishes depth with accelerated oxygen drain, and the Rebreather directly counters that mechanic. For players pushing past the early-game shallows into areas where the real biome content lives, it is one of the first pieces of equipment worth prioritizing after your initial Air Tank.
The Subnautica 2 guide to finding and crafting the Rebreather has the full step-by-step breakdown if you want exact coordinates and a closer look at the bunker layout. For players who want to squeeze every second of dive time out of their oxygen supply, the guide to replenishing and increasing max oxygen covers Air Tanks, Rebreather use, and every other trick for staying under longer, including pushing from the default 45 seconds all the way up to 120 seconds of air.
