The player does not control the duplicants directly, and instead provides prioritized instructions, from which the duplicants will then follow to the best of their abilities. To help establish the colony, the player directs the duplicants to perform certain tasks, such as mining for resources, growing food, crafting equipment, researching new technologies, and maintaining their own health through nourishment, rest, and hygiene. The game simulates the diffusion of gases and equalization of atmospheres when a new natural chamber is opened, which can cause oxygen levels to drop in existing chambers, as well as the draining of liquids by gravity. The world also contains several hazards such as diseases and extreme temperatures. While initial areas have a breathable atmosphere, subsequent areas are in a vacuum or lack oxygen, requiring proper preparation by the duplicants before they explore these areas. The world is then subdivided into various regions or 'biomes' that contain different and often biome specific materials and critters.

Each game's world is procedurally generated. The player must monitor the duplicants' hunger, waste, and oxygen levels to keep them alive. The player is tasked with managing and taking care of these duplicants as they try to survive and create a sustainable makeshift space colony. At the start of a new game, three colonists (referred to as duplicants) find themselves in an asteroid with isolated pockets of breathable atmosphere, with no memory of how they got there. Oxygen Not Included is a simulation survival game. After being released on Steam's early access since February 2017, the game was officially released on July 30, 2019. Inside this room are two pumps that feed in directly to the exo-suit docking stations, using bridges to make sure that the pumps only come on when there is not any oxygen coming from the supply.Oxygen Not Included is a survival simulation video game developed and published by Klei Entertainment. So once the suit docks and the base is full, the oxygen is diverted once again into a buffer room. Theoretically this should work, since the dupes are consuming oxygen whether or not they're in suits. When the pipe backs up, the extra diverts into a line that goes to my exo-suit docks. My oxygen is supplied by two electrolyzers and pumped into my base. It is a little confusing, but works pretty well.

It is easiest to simply have a dedicated supply for the docking stations, but I've been using a single supply for everything for a while now. 10 dupes consume roughly 1kg/s, so 10 stations is the limit for a single gas pipe fed by two pumps. From a math point of view: Two pumps can push 1kg packets per second through a pipe. More than that and some docking stations will become starved for oxygen if the suits are being used regularly. I've found through trial and error that two pumps will handle around 8 docking stations. Currently my oxygen supply is about equal to my oxygen demand, so everything balances out over time - in other words, if the dupes are spending lots of time in the suits, then oxygen builds up in the excess room to be pumped into the suits because they're not consuming it in the base. In that room I have two air pumps that push 1kg packets down a pipe to my docking stations. I have a room that takes up excess oxygen from my supply. I have a sort-of dedicated supply for my exo-suits.

Exosuit oxygen not included wiki