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Compost for a Reliable Seed Loop — guide illustration
Food production

Compost for a Reliable Seed Loop

Use Toilet compost to preserve planted seeds while harvesting organics for meals.

PC / Global, full release 1.0 (Nov 7, 2025)
WHERE & HOW TO FARM

Where to farm

Rofleemo Toilet output and Garden Beds aboard the train.

Compost is a useful crop input when you want to stop replenishing seed stock from fish. Apply compost from a Rofleemo Toilet to a Garden Bed, keep the plot watered, and harvest only when the crop is fully grown. The composted harvest returns the planted seed and shortens the growth stage.

GET STARTED

How to farm

Before you go

  • A constructed Garden Bed with a planted seed.
  • Water supply for the bed.
  • A Rofleemo Toilet producing compost; the Toilet requires chemicals.
  1. Unlock and build a Rofleemo Toilet when its research and materials are available.
  2. Supply the Toilet with chemicals as required and collect its compost output.
  3. Plant a regular or strange seed in an empty Garden Bed slot.
  4. Water the bed using the available Water Condenser output or other usable water.
  5. Apply compost to the planted bed before harvest.
  6. Wait until the crop is fully grown and collect the organics.
  7. Keep the returned seed and replant it for the next crop.

Farming tips

  • Use compost on beds where seed loss would interrupt a crop you rely on.
  • Keep regular and strange seeds sorted so composted planting stays aligned with the crop you need.

Repeat, collect and use

Repeat for each crop while compost is available; the guaranteed seed return applies to a fully grown, composted harvest, not to seed creation from nothing.

Common mistakes

  • Harvesting before the crop is fully grown; complete the visible growth cycle.
  • Expecting compost without operating the Toilet; supply its stated chemical input.
  • Assuming compost replaces water; keep watering the bed as it grows.

When to stop or switch

Switch to gathering chemicals or producing more compost when the current supply no longer covers planned bed harvests.

Sources & fact checks
REWARD DETAILS & CONDITIONS

Sources & rewards

Farming route

Compost for a Reliable Seed Loop

Rofleemo Toilet output and Garden Beds aboard the train.

  • A constructed Garden Bed with a planted seed.
  • Water supply for the bed.
  • A Rofleemo Toilet producing compost; the Toilet requires chemicals.
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