High Capacity O2 Tank
A critical upgrade that extends your underwater oxygen supply, allowing longer dives and deeper exploration without surfacing. Essential for mid-game progression.
Quick Info
How to Craft
The High Capacity Tank is an upgrade from the Standard Tank. It requires the Standard Tank as a base material, along with Glass and Titanium. Craft it at the Fabricator in your lifepod or base.
Materials Needed
- 1x Standard Tank
- 2x Glass
- 1x Titanium
Glass is refined from 2x Quartz each. Standard Tank requires 1x Titanium and 1x Glass.
Crafted At
Fabricator
Found inside your lifepod or any powered base. Navigate to Equipment › High Capacity Tank.
What it Does
The High Capacity Tank extends your base oxygen supply from 30 seconds to 75 seconds. This more than doubles your underwater time, enabling exploration of deeper biomes and wrecks without constant surface trips. Combined with a vehicle or pipe system, it forms the backbone of your mid-game diving strategy.
75s Oxygen
Doubles your breathing time from the Standard Tank's 30 seconds to 75 seconds.
Upgradeable
Can be further upgraded to the Ultra High Capacity Tank for even longer dives.
Equipment Slot
Equips in the tank slot. Carry spares in inventory for instant swaps during long dives.
Upgrades
Ultra High Capacity Tank
Further extends oxygen to 135 seconds for deep exploration.
Double Tank
Equips two tanks for massive oxygen reserves on extended dives.
Related Resources
Frequently Asked Questions
How much oxygen does the High Capacity Tank provide?
The High Capacity Tank provides 75 seconds of oxygen, compared to the Standard Tank's 30 seconds. This more than doubles your dive time, making it essential for exploring deeper biomes and wrecks.
Can I stack multiple oxygen tanks?
You can only equip one tank at a time in the equipment slot. However, you can carry spare tanks in your inventory and swap them instantly when one depletes. This effectively multiplies your oxygen supply for long expeditions.
What materials are needed for the High Capacity Tank?
You need 1x Standard Tank (as a base), 2x Glass, and 1x Titanium. The Standard Tank itself requires 1x Titanium and 1x Glass. Glass is refined from Quartz at the Fabricator. Total raw materials: 2x Titanium and 4x Quartz.
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