Sci-fi story generator
Science fiction flash is one "what if" and the person it happens to. Set the length and let the generator run the experiment.
How to write a good sci-fi short story
- One speculative idea per story. Follow its consequence, not its mechanics.
- Show the technology through habit: how do people use it without thinking?
- Let the human cost carry the ending.
- Avoid info-dumps: one line of explanation is usually enough.
Best length
300–1,000 words gives a speculative idea room to land; 100 words suits a single twist. See what flash fiction is for the full length ladder.
Stuck on the last line? The story ending generator suggests endings for your draft, and the plot twist generator helps plan the turn.
Other genres
- Horror story generatorShort, scary and finished in under a minute.
- Fantasy story generatorA whole fantasy world is too big for flash.
- Romance & love story generatorMeet-cutes, second chances and the one that got away, in 50 to 1,000 words.
- Funny story generatorComedy loves brevity.
- Mystery story generatorA crime, a clue and a reveal, compressed.
- All genresThe full flash fiction generator.
Questions writers ask
What makes good sci-fi flash fiction?
One clear speculative premise, a character who feels its effect personally, and an ending that shows what the change costs.
Can I give it my own sci-fi idea?
Yes, use the "Your idea" field. You can also send a premise from the plot generator.
Is the sci-fi story generator free?
Yes, no sign-up. A fair-use limit of about 20 stories per hour applies.