60 Science Fiction Story Ideas (Best Sci-fi Writing Prompts)

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Science fiction stories mostly showcase futuristic ideas, scientific concepts, space explorations & adventures, extraterritorial existence, time travel, cosmic possibilities, etc.

But Sci-fi story writing is a way broader genre where all the possibilities with science and space are explored.

Related: Science fiction: Elements, Subgenres and Examples of Sci-Fi Writing

Below is the list of some great science fiction story ideas and writing prompts that will help you brainstorm your great sci-fi story.

Science Fiction Story Ideas & Writing Prompts-


#1

A large and intelligent insect civilization hiding for centuries deep within the earth has erupted from your character’s house backyard.


#2

-Seven men dressed in an unknown uniform appear at a character’s door at midnight and order him to come with them. They are from the future.


#3

-An intelligent life form from a planet of a very far away galaxy has just found out about the presence of life on earth.


#4

-One regular day, the spaceship lands in your character’s garden, and her parents leave with it. 


#5

-A character finds out that his rescued pet dog is actually an extraterrestrial being disguised as a dog. The character misuses him in exchange for shelter and security.


#6

-In the far future, the government has banned multiverse travel for common people but yet some people are using it secretly.


#7

-Scientists forced the human DNA to evolve further and further. This resulted in the creation of flying superhumans.


#8

-People are now using a technology called dream online which lets people meet and communicate with other people in dreams.


#9

-Teleportation is now the new way of travel.


#10

-A war on mars is going on to capture as much land as possible by the world countries.


#11

photo of woman wearing turtleneck top

-A young girl met with an accident and wakes up after 207 years in the future. She was part of a project which is the reason she is still alive and young.


#12

-In the future people started living in the water cities made inside the oceans.


#13

-Scientists were trying to create the big bang in a lab on a small scale but that resulted in opening a portal to different worlds.


#14

greyhound dog watching elderly owner reading book

-With the new technology humans are now able to talk with their pets and other animals.


#15

-People are abandoning the real world and now choosing to live in a computer-simulated world filled with everything they ever wished for. 


#16

two alien inside car

-The extraterrestrials now rule the planet and roam around cities to destroy any rebellion.


#17

-The space city is now the home of the rich where a character lives in his wealthy family but falls in love with a poor girl living on the surface.


#18

-A weird sound is coming from the space which is increasing day by day.


#19

-3 time travelers from different timelines coincidentally met at a place and invited each other to visit their homes in different timelines.


#20

-A character’s new friend is a time traveler and she doesn’t know.


#21

-A character genius friend was secretly testing a time-traveling machine in his garage lab when he suddenly disappeared and the machine broke down.


#22

couple sleeping in bed

-A character was sleeping when all of a sudden he woke up and found a woman sleeping next to her, and saw a picture of him with the lady kissing and the room was also different from his. The character was somehow in a parallel universe where he is married.


#23

snowboarder standing on snowy slope in mountains

-A group of snowboarders discovers a hidden door in the snowy mountain, the door led to an abandoned laboratory containing bodies of clones


#24

alieno

-A character’s genius friend and roommate from his college is actually an extraterrestrial being disguised as a student and is part of a research team from his planet secretly studying the earth, its living beings, and the technology found here.


#25

a woman posing at the camera

-A character belongs to a planet where women have gone extinct and only men live.


#26

arches hallway inside building

-A character lives on a planet where everything is totally flat, like foods have no taste, flowers have no smell, and every visible thing is white in color. They call it the boring planet.


#27

green leafed trees

-In an accident, a character hits a laboratory vehicle containing plutonium and a gallon of some secret chemical. The character is alive but in a multidimensional state.


#28

photo of man wearing brown fedora hat

-In the future, a character travels back in time using his father’s time machine to meet his dead grandfather who had started the time machine project but had left after failing every time.


#29

black and white photo of human hand and robot hand

-After surviving an explosion in his factory, a character started seeing things from the future.


#30

-With the new technology anyone suffering from any disease is cured instantly but it comes with a heavy price.


#31

gray tunnel

-The world is now connected with underground tunnels running super fast vehicles carrying people who work every day thousand miles away from their homes.


#32

ancient armor black and white chivalry

-In the Roman era, a soldier somehow finds an advanced weapon, a gun of the 21st century.


#33

robot fingers on blue background

-In the far future, the earth is inhabited by highly advanced AI robots and no human being lives on the planet.


#34

snowy winter day in countryside

-The weather is now controlled by humans through advanced weather technology which has now corrupted, leading the earth towards an ice age.


#35

silhouette of people stargazing

-Humans have now established connections with civilizations living in far away galaxies.


#36

covid vaccine on yellow surface

-The government is providing vaccination against aging helping people to live forever but soon learns the repercussions of playing god.


#38

analogue beach business classic

-An old scientist had created a time traveling watch and kept it secret while using it for many years but revealed it to his grandson on his deathbed.


#39

woman in white crew neck t shirt holding silver spoon

-A genius schoolboy creates a wormhole in his basement and no one knows where he went through it except one of his school friends.


#40

woman with bionic arm

A character finds out that his parents and his sister are robots and even his school teachers, his friends and everyone in his town is a robot and so he tries to find the reason without letting anyone know that he knows their truth.


#41

person in black shirt walking on sand

-A character who started receiving calls from himself. The other person is himself but from a other dimension.


#42

man in red long sleeved shirt

-A character is very good with computers and creates a real-world simulation where people could upload their consciousness and live forever as one of the characters in the simulation while leaving their bodies in a deep freeze.


#43

women at the counter

-A character falls in love with a woman working at a shop but he finds out that she’s just a robot designed to work at shops.


#44

photo of man with laser lines on his face

-An innocent man serving a lifetime prison sentence in the future time escapes and comes into the past using time travel to prove his innocence.


#45

house lights turned on

-A family who is actually highly intelligent robots sent from the future to investigate a crime.


#46

red and orange galaxy illustration

-A NASA scientist finds out what existed before the big bang. He got amazed.


#47

aged brick with clock and coat of arms

-In the future time travel becomes possible and everyone is allowed to go back in time but they can’t return.


#48

woman in a spacesuit with blue helmet

-An astronaut returned to earth and later discovers that it was not the earth that he had left but a multiverse.


#49

view of solar eclipse

-In the year 3090, a group of brave astronauts is traveling back in time before the big bang. They are amazed at what they saw.


#50

men in black jacket standing by the window

-A criminal clones himself and calls the police to arrest his clone. The clone man is an innocent man who gets a lifetime prison sentence for the crimes of his creator. A cop knows all this but he had to catch him to prove it.


#51

the stars in the sky at night

-In the far future, a spaceship entering the milky way galaxy gets a message on its screen saying, beware of ultra-advanced humans.


#52

woman looking on a screen inside a spacecraft

-Someone from the future is trying to contact the present humans through some advanced technology. He holds a crucial message for humankind.


#53

-Parents are cloning themselves to take care of their babies when they are at work. A clone couple escapes with the baby.


#54

-In the year 2067, a young man living and working on mars as a spaceship engineer for a company finds his life very boring on the planet and is trying to return to earth. The company won’t let him leave.


#55

-The world is full of flying cars and a school teacher who loves flying cars is working hard to earn enough money to buy the expensive flying car of his dreams.


#56

-An explorer spaceship finds an alien world inhabited by giant human-like creatures.


#57

-A schoolboy discovers that all the teachers of his school are robots. 


#58

Some sentient AI is now ruling the world with its huge robot army.


#59

In future tourism, people travel back to the world of the dinosaurs to see them alive. Traveling back to any human civilization timeline is restricted.


#60

-In the future, a huge meteor is coming towards the earth and every government is evacuating important personalities in their huge rockets leaving the planet and common people behind. But someone has a plan B.

Neel Rana

About the Author- Neel Rana is a YA short story author, flash fiction writer, literary enthusiast and the founder of Pandora Post. Neel holds a degree in BA Honours in English Literature and has been writing since 2017. Neel’s magnum opus YA short storybook, “The Drunken Ghost” has been well received by the readers.