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.

Chasm Waxing

Free
Science Fiction
3.9★ 40+ ratings

Becca and Josh work for companies from the NSA’s venture capital and startup accelerator firm. But the Director executes a personal vendetta against ISIS behind the scenes.


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Stars & Ashes

Free
Science Fiction, Action
4.3★ 75+ ratings

When invading forces annex Emankora, Kia’s family is murdered and she is sentenced to slavery in the mines. Kia will unfalteringly pursue her goal of assassinating the Heir.

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Lost

Free
Science Fiction, Adventure
4.2★ 150+ ratings

As Sadie begins to uncover the secrets of her past, her rare latent Talent is exposed and she finds herself on the run. Her choice: hide and stay lost, or fight.

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Millennium Crash

Free
Science Fiction, Suspense
4.1★ 300+ ratings

Samantha finds her team leader just in time to witness one of her colleagues kill him—and she’s the only person in a position to bring the murderer to justice.


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The 18th Shadow

Free
Science Fiction, Action
4.2★ 200+ ratings

The 18th Shadow is a dystopian story that takes place in the year 2082, in which America is not what it is today and most of its citizens live with a nano computer consensually embedded in their skull.

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Children of Apis: Rebel Blood

Free
Science Fiction, Thriller
4.3★ 75+ ratings

Rebel Blood is the first book in the Children of Apis series. The book’s goal is to create a unique blend of the post-apocalyptic and dystopian genres.

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Sonorous

Free
Science Fiction, Novella
3.8★ 30+ ratings

Why did we let machines assimilate our musical culture? Sonorous is a cyberpunk journey into the fight for musical identity.

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The Aliomenti Saga: Books 1-3

Free
Science Fiction, Collection
4.2★ 5000+ ratings

These books chronicle the rise and proliferation of a secret group of supernaturally gifted men and women through the life of their most dynamic member, Will Stark.


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Resurrection

Free
Horror, Science Fiction
4.2★ 1500+ ratings

Annie Starling discovers a terrifying secret after the most virulent virus the world has ever known has stripped its victims of every last thing that makes them human.


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Future City Blues

Free
Science Fiction, Collection
3.9★ 100+ ratings

Genehunter. Assassin. Private eye. Three Stories from Three Different Futures. A dark and gritty tech noir collection.

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The Enemy of an Enemy

Free
Science Fiction, Action
4.1★ 2000+ ratings

A new enemy has come to the Empire bringing with it dark powers that were abandoned long before the Empire was born.

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Fall of the Cities

Free
Science Fiction, Action
4.2★ 500+ ratings

Terrorists spark a worldwide oil crisis while imports grind to a halt. Europe and Britain are erupting into chaos. Corporal Harry Miller just wants his family to be safe.


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Surviving The Evacuation: Family

Free
Science Fiction, Suspense
4.4★ 5000+ ratings

Three months after escaping from London, Bill discovers the extent of the global war that followed the outbreak. As he finds the truth, he’ll have to choose between families.


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Incubation

Free
Science Fiction, Teen
4.3★ 1000+ ratings

Everly Jax wants to know who her parents are. Raised with other repo kids in InKubator 9, she has pinned her hopes on Reunion Day, but things go horribly awry.


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WWIV – In The Beginning

Free
Science Fiction, Suspense
4.1★ 1000+ ratings

Experts say the average “non-prepped” citizen will survive 10 days in the post-apocalyptical world. For Bill Carlson, a man with no survival training, the clock has begun.


Amazon

Paax

Free
Steamy Romance, Science Fiction
4.0★ 2000+ ratings

The situation is dangerous for a hardened warrior, let alone a soft Human female without fangs or claws to defend herself. Sending her back to Earth is the only choice.

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