Antewise

Oxygen Not Included Common Mistakes

Updated 20 Oct 2026 Source Synthesized from published Oxygennotincluded guides; rewritten in original wording on 20 October 2026 By

Forgetting oxygen math

New players mine and build but never automate electrolysis. The algae ends and the base goes quiet.

Mixing zones

Dirty and clean in one room spreads germs to food. Separate them from the start.

Over-digging

Every tile opened is heat and gas you must manage. Dig to a plan, not to explore.

No power plan

Machines need power. A base without a power spine stalls the moment a refinery switches on.

Ignoring heat

Refineries cook the room. Insulate them or the farm next door dies.

Plan with the data

The building database shows size and effect. Read it before you place a hot machine.

Skipping the sieve

Polluted water left loose breeds germs. Build a sieve so the loop closes early.

Crowding the base

Too many buildings in one tile fight for space and heat. Spread out by zone.

Forgetting critters

The critter database lists helpers like Hatches. Ignore them and you haul coal by hand forever.

Stay calm

Panic digging kills colonies. Pause, read the meters, then act so one mistake does not cascade into a wipe.

Skip the sieve

Loose polluted water breeds germs fast. Build a sieve so the water loop closes early and clean.

Crowd the base

Too many buildings on one tile fight for space and heat. Spread out by zone from the start.

Ignore the helpers

Critters like Hatches spare you hauling. Overlook them and you carry coal by hand forever.

Buildings often placed wrong

  • Printing Pod (cat Buildings, effect Light Range: 5 tiles)
  • Plumbing (Building)
  • Decor
  • Cell of Interest
  • Stations (Building)
  • Rocket
  • Base (Building)
  • Utilities (Building)
  • Power (Building)
  • Building
  • Refinement (Building)
  • Overheating
  • Radiation Sensor
  • Rocketry (Building)
  • Piping
  • Ventilation (Building)
  • Furniture (Building)
  • Great Monument (cat Buildings)

Critters often ignored

  • Shine Bug
  • Critter
  • Drecko
  • Plug Slug
  • Hatch
  • Egg
  • Critter Morphs
  • Pacu
  • Puft
  • Gassy Moo
  • Morb
  • Shove Vole
  • Pokeshell
  • Slickster
  • Pip

Frequently asked questions

What is the most common mistake?

Treating oxygen as infinite. Algae runs out, and a colony without electrolysis suffocates.

Should I dig everywhere?

No. Digging opens bad gas and heat. Expand by system, not by curiosity.

More Oxygen Not Included guides

Sources

Figures and item data on this site are read from the game’s own reference wiki before publishing. Where a value could not be confirmed there, the page says so instead of filling the gap.