Oxygen-not-included-v526233-zip -

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

: Use an Algae Deoxidizer or Algae Terrariums early on to keep the air breathable while you research better solutions. Essential Research & Power oxygen-not-included-v526233-zip

: The Oxygen Not Included Wiki is an authoritative source for specific item stats and room requirements. : Dig out surrounding areas to gather Algae