Oxygen Not Included

Core Gameplay and Survival Mechanics

The primary objective revolves around keeping your Duplicants alive and eventually allowing them to thrive. This involves a constant balancing act across several critical survival vectors. Air quality, temperature regulation, and sanitation are not secondary concerns; they are fundamental requirements for continued operation. Every action, from digging tunnels to constructing advanced machinery, impacts the delicate equilibrium of the colony's internal environment.

Players must research new technologies to unlock advanced building materials, life support systems, and automation tools. The gameplay loop centers on exploration, construction, and scientific advancement. As you delve deeper into the asteroid, you uncover new biomes, resources, and dangers, necessitating continuous adaptation of your base design and resource strategy.

What makes this game unique in the simulation genre?

A defining feature is the intricate simulation of physical properties. Gases stratify based on density, liquids flow realistically, and heat transfers through materials, creating complex environmental puzzles. Furthermore, each Duplicant possesses unique traits, skills, and needs, meaning their personalities and physical limitations directly influence their efficiency and happiness within the colony.

Setting and Atmosphere

The atmosphere is one of isolated, high-stakes engineering under pressure. Trapped within a massive, procedurally generated space rock, the environment is inherently hostile. Players must contend with volatile gases, extreme temperatures, and the need to harness incredible, often experimental, space technology to overcome these natural obstacles.

Game Availability and Content

This title was released in 2019 and is available on PC (Microsoft Windows), Linux, and Mac platforms. As a main game, it offers a substantial core experience. Beyond the base game, there is one official DLC package and three significant expansions available, adding further depth and complexity to the survival challenges and technological options available to the player.

How does resource management impact long-term colony health?

Long-term viability is entirely dependent on creating closed-loop systems. For instance, managing the colony's oxygen supply requires not only generating it but also dealing with the resulting carbon dioxide byproduct, often through complex scrubbing systems or by cultivating specific flora that consume it. Waste heat must be actively managed to prevent overheating critical systems or cooking your Duplicants. Failure to address these interconnected systems leads to cascading failures, making foresight and planning essential for survival beyond the initial few cycles.