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Story ideas

Sci-fi short story ideas

5 ideas, ranked. Strongest: Borrowed Gravity. Click through to explore this as a live bubble map, grow any idea further, or re-score it for your situation.

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Ranked by overall score (1-10), the average of Originality, Emotional pull, Fits the story.

  1. Borrowed Gravity

    8.7

    A bankrupt station rents gravity by the hour, until a child’s unpaid bill makes the whole habitat weightless.

    Originality 8/10Emotional pull 9/10Fits the story 9/10
    • Debt Ticker in the Lift

      8.0

      A brass counter tallies unpaid kilograms, revealing which floors will lose gravity next.

      Originality 8/10Emotional pull 7/10Fits the story 9/10
    • Mara’s Paper Kite

      8.0

      The child uses a kite to guide drifting neighbors toward the station’s sealed emergency ballast.

      Originality 7/10Emotional pull 9/10Fits the story 8/10
    • The Auditor’s Bone Key

      7.3

      A debt collector’s key opens the station’s ballast vault, but its lock records every stolen hour.

      Originality 9/10Emotional pull 6/10Fits the story 7/10
  2. The Planet That Apologized

    8.7

    Its shifting continents spell out a confession, but the expedition’s translator recognizes her own childhood handwriting.

    Originality 10/10Emotional pull 8/10Fits the story 8/10
    • Basalt Practice Sheets

      8.7

      Mara’s vanished brother carved the same misspelled apology into a school desk before disappearing.

      Originality 8/10Emotional pull 9/10Fits the story 9/10
    • A Fault Line’s Reply

      8.7

      The continents alter one letter whenever Mara lies, turning translation into a dangerous interrogation.

      Originality 9/10Emotional pull 8/10Fits the story 9/10
    • The Ink Beneath Ice

      7.7

      A melting polar shelf reveals her handwriting dated decades before her birth, implicating the expedition’s sponsor.

      Originality 8/10Emotional pull 7/10Fits the story 8/10
  3. The Moon’s Missing Minute

    8.3

    A lunar clockmaker discovers one minute vanishes nightly, carrying a different astronaut’s memory with it.

    Originality 8/10Emotional pull 8/10Fits the story 9/10
    • Twelve Seconds in the Gearbox

      8.7

      Clockmaker Ilyan finds twelve stolen seconds lodged in a brass tooth, replaying astronaut Sato’s unreported distress call.

      Originality 8/10Emotional pull 9/10Fits the story 9/10
    • The Memory Census

      7.7

      A lunar clinic’s intake records reveal the missing minute always erases one witness’s memory of a specific person.

      Originality 7/10Emotional pull 8/10Fits the story 8/10
    • A Minute for Earth

      7.3

      Each vanished memory appears as a new minute on Earth, where a desert radio telescope detects the impossible extra time.

      Originality 9/10Emotional pull 6/10Fits the story 7/10
  4. Museum of Extinct Sounds

    8.0

    A deaf curator must identify a newly recorded whale song before its source reaches Earth’s oceans.

    Originality 9/10Emotional pull 7/10Fits the story 8/10
  5. Last Train to Europa

    7.3

    A railway conductor finds one extra passenger aboard a sealed subglacial train, carrying tomorrow’s evacuation orders.

    Originality 7/10Emotional pull 7/10Fits the story 8/10

Generated with Idea Bubbles. Created 2026-10-17.