Oxygen

When the player starts a new game, he begins with 20 user oxygen tanks located in the crashed capsule. The first task that he needs to do, is to provide himself with an infinite oxygen supply.

Oxygen can be created by connecting an oxygen generator to a water pump and to an oxygen air dispenser.

It can be distributed with oxygen air duct.

It is also one of the 4 basic needs that keeps a player alive. If he run out of oxygen, his health bar will start decreasing quickly.