Oxygen-not-included-v526233-zip -

: Once basic research is done, build a Supercomputer for "Advanced Research" (purple bar). This requires 50 kg of water per unit, delivered via a Pitcher Pump .

The early game is about establishing "The Big Three": Oxygen, Food, and Water. oxygen-not-included-v526233-zip

: Use an Algae Deoxidizer or Algae Terrariums early on to keep the air breathable while you research better solutions. Essential Research & Power : Once basic research is done, build a

: Carbon Dioxide (CO2) is heavier than oxygen and will sink. Dig a pit at the bottom of your base for CO2 to collect in, keeping your living areas clear. Advanced Resources & Help : Once basic research is done

: Dig out surrounding areas to gather Algae (for oxygen), Sandstone (for building), and Muckroot (for immediate food).