Sci-Fi Plot Generator
A random science-fiction plot: a hero, a world changed by one idea, the inciting event, a midpoint reversal and an ending. Lock what you like, reroll the rest.
Tap the padlock to keep a piece, then reroll the rest. Keyboard: press R to reroll.
Outline it with AI
A logline, 8–10 sci-fi beats and a theme will appear here.
What a sci-fi plot needs
- Change one big thing. The strongest science fiction asks one "what if" and follows its consequences honestly through society and individuals.
- Show the world through a problem. Explain technology only when the character needs it to solve something.
- Keep the human question central. The spaceship is the setting; the question about people is the story.
6 sci-fi plot ideas
- A terraforming engineer in a city where sleep is rationed: the ship's computer reports a passenger who does not exist. Then the hero learns they are not the original.
- A memory-editing technician in an orbital hospital: a message arrives from a probe launched two centuries ago. Then the colony is a simulation, and someone wants out.
- A pilot who has spent forty years in cryosleep in a research base under the Antarctic ice: everyone in the colony dreams the same dream. Then the cure works, and that is the problem.
- A farmer on a generation ship in a city where sleep is rationed: the hero's backup copy wakes up while the hero is still alive. Then the enemy is the hero's future self.
- An AI ethics auditor in an orbital hospital: the sun goes out for eleven minutes. Then the aliens they feared are refugees.
- A deep-sea miner in a research base under the Antarctic ice: a law passes that lets memories be sold. Then the mission was a cover for something the crew would never agree to.
Not sure where the twist should land? The plot structure guide shows each beat on a tension curve, and the plot twist generator deals out reveals.
Plot generators by genre
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Questions writers ask
What makes a good sci-fi plot?
One central idea, explored through how it changes ordinary people's lives and choices. The technology matters less than the human cost.
How much science do I need?
Enough to be consistent. Readers forgive invented technology but notice when it breaks its own rules.
What are common sci-fi plot types?
First contact, colonisation, dystopia, time travel, artificial intelligence, and survival on a hostile world. Each can be told as an adventure, a mystery or a character drama.