Starting your first subterranean asteroid base in Oxygen Not Included can be a wonderfully overwhelming experience for new players. The complex simulation forces you to manage thermodynamics, fluid dynamics, and the physical needs of your cloned workforce from the very first second. Establishing a sustainable cycle requires strict prioritization of basic survival systems before expanding into advanced industrial engineering.
Mastering the Basic Survival Triad
The immediate survival of your colony depends heavily on managing three fundamental elements: breathable air, basic food production, and internal heat. Many beginners fail early because they expand their base too quickly without securing a stable supply of oxygen or agricultural resources. Focusing on simple solutions like manual oxygen diffusers and basic mealwood crops will keep your initial duplicates alive during the critical early cycles.
It is entirely normal to see your first few colonies struggle as you learn how different gases and liquids interact within the closed environment. Experienced players often treat these early failures as learning opportunities to refine their layout designs and resource distribution pipelines. Keeping your initial infrastructure compact allows you to control the environmental variables much more effectively.
Managing Gas Dynamics and Base Layout
Understanding how different gases naturally settle is crucial for designing an efficient layout for your asteroid colony. Carbon dioxide is heavier than oxygen and will consistently accumulate at the lowest points of your excavated base structures. Creating dedicated pit areas below your main living quarters ensures that harmful gases do not choke your duplicates while they sleep.
Airflow tiles and wide vertical shafts are excellent structural investments that encourage natural gas circulation throughout the base. By allowing heavy gases to sink freely, you minimize the amount of power needed to operate active mechanical gas pumps. This passive management strategy saves vast amounts of electrical energy during the early game development phases.
Securing Sustainable Water Sources
Water is arguably the most valuable fluid asset in the game, acting as the foundation for advanced oxygen production and high-tier crop irrigation. Relying solely on local clean water pockets will inevitably lead to resource depletion as your duplicate population grows. Finding a nearby steam vent or water geyser is an essential milestone for transitioning your base into a self-sustaining ecosystem.
Once you locate a reliable fluid source, you can begin constructing advanced closed-loop filtration systems to recycle your colony's wastewater. Implementing insulated tiling around your water storage areas prevents external ambient heat from warming your liquids to dangerous temperatures. Keeping your water supply cool ensures that your agricultural setups remain viable over hundreds of game cycles.
Controlling Industrial Heat Generation
As you progress into the mid-game, operating heavy machinery like power generators and metal refineries creates substantial amounts of thermal energy. Accumulating unchecked heat will eventually scorch your delicate crops, leading to sudden and catastrophic food shortages across the base. Separating your primary industrial machinery from the main living quarters is a vital preventative measure.
Utilizing nearby cold biomes as natural heat sinks offers an excellent short-term cooling solution for expanding industrial complexes. Eventually, you will need to research advanced thermodynamic technology to actively delete heat from your infrastructure. Proactively managing your thermal footprint guarantees the long-term survival of your growing underground civilization.
