Duplicants keep collapsing from low oxygen until the game explains that a downed duplicant needs an assigned Medical Cot or Rejuvenator, and chlorine turns up.
With power almost gone, Basket wires pumps to wheel generators and turns off what the colony can spare, but food runs out and JJBonsig starves to death.
With 14 stressed duplicants and the power giving out, Basket gets massage tables, unblocked toilets and a natural gas generator going, then sends carbon dioxide to the scrubbers.
Basket lets the steam geyser vent, turns on a Fertilizer Maker for natural gas, plans a Natural Gas Generator, and fights stress and spreading polluted water.
With 13 duplicants and not enough power to go around, Basket rebuilds pipes, adds a second water pump and a liquid filter, and digs toward the steam geyser.
Basket pumps carbon dioxide into a sealed little room for an Air Scrubber to clean, while a liquid filter misbehaves and the duplicants run short of air and patience.
Basket pumps water up from the bottom of the base and digs a tank to hold it, while a tenth duplicant joins and a group gets stranded in carbon dioxide.
A digger named Mae joins, a duplicant gets stuck up on the farm ceiling, a pocket of water is let down into a cavern, and a Coal Generator finally takes over from the wheels.
Basket plans air conditioning for the hot farm with gas pipes, pumps and a Thermo Regulator, while the fridge fills, Ren stays stressed and the power runs short.
A Compost goes in by the outhouses, the farm turns out to be too hot, Fine Dining brings a refrigerator, and Gas Piping research opens up gas permeable floors.