Oxygen Not Included is a deeply challenging space colony simulation from Klei Entertainment — the studio behind Don't Starve, Mark of the Ninja and Griftlands. Your Duplicants — cheerfully inept clones — have spawned deep inside an alien asteroid with nothing but the rock around them and a desperate need for air, food, water and warmth. Dig out your base, construct life support systems, manage heat and gas flows, grow food, recycle waste and try to keep everyone alive and mentally stable as the systems you build grow ever more complex and ever more interdependent.

Key Features: • Space colony simulation — dig, build, breathe and survive deep inside an alien asteroid • Real physics — gases, liquids, heat and germs all obey simulation laws • Deep systems — power, gas, liquid, plumbing and automation pipes all interconnected • Duplicant management — each colonist has unique traits, skills, stress levels and morale needs