Oxygen Not Included

Oxygen Not Included is a deep colony-simulation game where you guide a group of Duplicants to survive and thrive inside an asteroid. Master a complex ecosystem of gases, liquids, heat, and electricity as you build a self-sustaining base from scratch. Balance oxygen production, food supply, temperature control, and sanitation while optimizing power grids, plumbing, and ventilation. With robust research, intricate automation, and emergent crises, every decision shapes the fate of your colony. Its charming style hides an uncompromising simulation that rewards careful planning, clever engineering, and bold exploration.