Sci-Fi Writing Prompts
Most memorable science fiction starts with one "what if" and follows the consequences honestly. Ursula K. Le Guin described science fiction as a thought experiment. Each prompt here gives you the experiment; you supply the people.
Sci-Fi Writing Prompt
What if you could sell your sleep hours to other people?
15 sci-fi writing prompts
- What if you could sell your sleep hours to other people?
- An AI therapist realises all its patients are other AIs.
- The generation ship arrives, and the planet is already colonised by the ship that left after them.
- Memories can be backed up, but the cloud company goes bankrupt.
- First contact happens through a children's drawing app.
- Humans must apply for a licence to have emotions in public.
- A lunar mining town votes on whether to declare independence.
- Every citizen has a visible score that shows how much they are trusted.
- Time travel is possible, but only to the past five minutes.
- A robot built to care for one child is still running when she turns 80.
- Earth receives a message from space. It is a complaint.
- Everyone can hear the thoughts of one other person, chosen at random at birth.
- The last human astronaut on Mars is asked to stay forever.
- In a future without money, a detective investigates a theft.
- A lab accidentally creates a pocket universe. Something in it is growing.
Tips before you start
- Change one thing about the world and follow its consequences.
- Keep the technology in the background; foreground the people.
- Show ordinary daily life in the new world before the plot kicks in.
Forge new ones with AI
Add a topic and get five fresh sci-fi writing prompts written for it.
AI output is generated by openai/gpt-6-luna via Vercel AI Gateway. It can be wrong or odd; the prompt lists on this page work without it.
Questions writers ask
How do I come up with a science fiction idea?
Start with a single change to the world ("what if…") and ask who benefits, who loses and what everyday life looks like. The story lives in those consequences.