Top Free Science Fiction Kindle Books

Whether you enjoy futuristic, dystopian, apocalyptic, space opera, or other sci-fi delights, you’ll find great books among our top 200 free Kindle science fiction books.

Al Clark

Free
Science Fiction, Adventure
4.3★ 2500+ ratings

Al Clark is on a quest that will take him places he could not have imagined, manage feats he would not have thought possible, and teach him the true meaning of friendship.


Amazon

Christmas Presence

Free
Science Fiction, Teen, Holiday
4.7★ 30+ ratings

From droids in Santa suits to gingerbread rebels with attitude, Van and his crush Charli are stuck in a war between myth and madness after they were dragged into a virtual game that contained a whole world.

Amazon

Surviving The Evacuation: London

Free
Science Fiction, Suspense
4.2★ 10000+ ratings

On his journey out into the wasteland that once was England, Bill will ultimately discover the horrific truth about the outbreak and a decades old conspiracy.


Amazon

Lowan’s Checkmate

Free
Science Fiction, Mystery
4.6★ 30+ ratings

A single shot echoes through a locked hotel room, and a fortune in diamonds is missing. Stymied, the authorities call Lowan, a telepathic alien working as a private detective in the 1930s.


Amazon

Forgotten

Free
Science Fiction, Supernatural
4.3★ 1000+ ratings

While struggling to regain her memory, Lena explores her extrasensory powers. As she tries to figure out who and what she is, she makes a frightening discovery.


Amazon

Didi and the Gunslinger

Free
Science Fiction, Adventure
4.2★ 40+ ratings

With the company of her cyborg crow, Pip, Didi is happy to scour her territory for treasures discarded as trash. But when an evil Underlord kidnaps her father, Didi can no longer hide in her garbage.


Amazon

The Running Game

Free
Science Fiction, Adventure
4.2★ 400+ ratings

War-torn London sets the stage for Rachel, a doctor with hidden telekinetic powers. With the help of dangerous and dubious allies, can she turn the game around and save herself?

Amazon

The Joint of No Return

Free
Science Fiction, Humor
4.0★ 100+ ratings

Charlie Hong is on the run and cooking up a harebrained scheme to escape his troubles: a clandestine marijuana operation. When aliens steal his cash crop, he finds himself in a cosmic struggle.

Amazon

War Without End

Free
Science Fiction, Action
4.2★ 500+ ratings

The Terran Empire, the greatest empire in the history of humanity, is crumbling. Throughout the galaxy, planetary systems seek independence and freedom. What price will Danny pay for freedom?


Amazon

Mind Machines

Free
Science Fiction
4.2★ 1000+ ratings

Plunged into a criminal underworld darker than anything he could’ve imagined, more-than-human Mike’s life-saving brainocytes might be the death of him.

Amazon

Transient

Free
Science Fiction
4.0★ 750+ ratings

In a dark and distant future, death is obsolete. But the fates of billions hang in the balance. When the axe falls, Jonas must choose between his family and his species.


Amazon

Clone Three

Free
Science Fiction, Teen
4.3★ 400+ ratings

Clone Three wakes in a decaying city she is sure doesn’t match the one she came from. If only she could remember. She may be lost, but she has a purpose at least- to find her fellow clones.


Amazon

Sojourn

Free
Science Fiction, Historical
4.5★ 500+ ratings

For veteran Time Rover Jacynda Lassiter, her current job assignment is no big deal: Find an overdue “time tourist” and return him to 2057, before he changes history. But things get personal.


Amazon

Tagrale

Free
Science Fiction, Adventure
4.2★ 100+ ratings

For hundreds of generations, scientists have failed to reactivate the Tagrale to escape the Sironus system. Jenna dreams of being the one to unlock the puzzle, but if she does, she’ll be executed.


Amazon

Station

Free
Science Fiction,
4.2★ 50+ ratings

What is Station? A second chance? A nocturnal paradise? Or something else? When grief-stricken Marlin’s life refuses to end despite his best efforts, he unwittingly earns an invitation to Station.


Amazon

ARMS War for Eden

Free
Science Fiction, Action
4.2★ 1000+ ratings

Harris Gruberg and Tawnish Freely, bioengineered Humans, were bred for making war. After training for and fighting in it their entire lives, they find themselves expelled from the military.


Amazon