Trying to find the Ultra High Oxygen Tank blueprint in Subnautica 2? You’re definitely not the only one. Since launch, players have been searching deep biomes, alien structures, and hidden facilities hoping to unlock the massive oxygen upgrade in Survival mode.
The confusing part is that the Ultra High Oxygen Tank already exists in the game. You can use it in Creative mode right now, which naturally makes players think there has to be a hidden blueprint location somewhere in the world.
After digging through Reddit threads, Discord discussions, Steam forums, and community reports, here’s the current answer on whether the Ultra High Oxygen Tank is actually obtainable in Subnautica 2 Survival mode.
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Can You Unlock the Ultra High Oxygen Tank in Subnautica 2?
At the moment, there is no confirmed way to unlock the Ultra High Oxygen Tank blueprint in Survival mode.
Players have searched for:
- Ultra High Oxygen Tank fragments
- hidden blueprint locations
- alien tech terminals
- databoxes
- scanable wrecks
- deep biome unlocks
- crafting recipes
…but nobody has posted verified proof of obtaining the upgrade legitimately in Survival.
Right now, the only oxygen tank upgrade consistently obtainable is the High Capacity O2 Tank.
Is the Ultra High Oxygen Tank Actually in the Game?
Yes — the Ultra High Oxygen Tank is absolutely in Subnautica 2.
Players can already:
- spawn it,
- equip it,
- and use it in Creative mode.
That’s why so many players initially assumed the blueprint had to be hidden somewhere late-game. However, the current evidence strongly suggests the item is either:
- unfinished,
- disabled in Survival,
- bugged,
- or reserved for future content updates.
Ultra High Oxygen Tank Blueprint Location
So far, there is no confirmed Ultra High Oxygen Tank location in Subnautica 2.
Several community theories suggest the blueprint could eventually appear in:
- the alien city,
- precursor facilities,
- deep ocean research zones,
- endgame biomes,
- or hidden story progression areas.
The “alien city” theory is currently the most popular because many late-game upgrades appear tied to advanced alien technology. Still, nobody has shared screenshots, coordinates, or gameplay footage proving the blueprint exists there yet.
If you’re currently searching those areas, you’re probably not missing anything obvious.
Why Players Think the Oxygen Tank Is Unfinished
There are a few major reasons the community believes the Ultra High Oxygen Tank may not be fully implemented yet.
The Item Works in Creative Mode
The tank already has:
- a model,
- stats,
- inventory functionality,
- and equipment support.
That usually means the item is partially complete from a development standpoint.
No Fragments Have Been Found
Unlike most major Subnautica upgrades, players haven’t discovered:
- blueprint fragments,
- wreck scans,
- or data terminals tied to the Ultra High Oxygen Tank.
That’s highly unusual for an important progression item.
Subnautica 2 Is Still in Early Access
Because the game is still evolving, several systems appear incomplete or placeholder-based. Developers are still adding:
- crafting progression,
- biome content,
- story sequences,
- and technology unlocks.
The oxygen tank may simply be planned for a future update.
Best Oxygen Upgrade Currently Available
If you’re trying to maximize oxygen capacity right now, the best confirmed setup is:
- High Capacity O2 Tank
- Rebreather
- upgraded mobility tools for faster resurfacing
Until the Ultra High Oxygen Tank becomes obtainable, this is currently the safest setup for deep exploration in Survival mode.
Community Consensus Right Now
Based on Reddit, Discord, Steam discussions, and player testing, the current community consensus is:
- The Ultra High Oxygen Tank exists
- It works in Creative mode
- No Survival blueprint has been verified
- The item is likely unfinished or future content
So if you’ve spent hours searching every deep biome for the blueprint, you probably haven’t overlooked a secret room or hidden scan yet.
Will the Ultra High Oxygen Tank Be Added Later?
Most likely, yes.
Given that the item already exists in-game, many players expect Unknown Worlds to eventually:
- add a proper blueprint,
- tie it to late-game progression,
- or unlock it through future story updates.
There’s a good chance the tank becomes one of the final oxygen upgrades once more endgame content is added to Subnautica 2.
FAQ
How do you get the Ultra High Oxygen Tank in Subnautica 2?
Currently, there is no confirmed Survival-mode unlock method for the Ultra High Oxygen Tank.
Where is the Ultra High Oxygen Tank blueprint?
No verified blueprint location has been discovered yet.
Is the Ultra High Oxygen Tank bugged?
Possibly. Many players believe the blueprint is either disabled, unfinished, or not fully implemented yet.
Can you use the Ultra High Oxygen Tank in Creative mode?
Yes. The item is fully usable in Creative mode.
What is the best oxygen tank in Subnautica 2 right now?
The High Capacity O2 Tank is currently the highest confirmed oxygen upgrade available in Survival mode.