Oxygen
100 points of air. It drains anywhere you can't breathe: airless worlds, space and underwater.
A full tank lasts about 25 seconds without air, and refills almost instantly once you can breathe again.
Where you can breathe
- Outdoors on any world with an atmosphere, below the top of its sky.
- Inside a sealed ship with working Life Support and air in its tank.
- Inside your own sealed base, once an Oxygen Plant has filled it.
Where you can't
- On airless worlds: most moons, and some deserts. See All World Types.
- In space, outside a ship.
- With your head underwater.