You take control of stranded colonists to create a sustainable base on a drifting asteroid.
Pro Realistic game mechanics
For a light-hearted game, Oxygen Not Included takes laws of physics and biology very seriously. Characters, or Duplicants, require regular meals and fresh water. They can hold their breath, but only for a limited time. Extremely cold and hot temperatures hurt them. Given high enough stress level, they can even experience nervous breakdown that causes them to vomit excessively or start binge-eating colonie's food supplies.