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 100 free Kindle science fiction books.

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.


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Space Colony One: Books 1-3

Free
Science Fiction
4.3★ 1000+ ratings

A new planet is not the paradise the scientists predicted. With alien predators lurking and stowaway saboteurs, Ethan must fight to preserve the last hope of humankind.


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Symbiosis

Free
Science Fiction
4.0★ 750+ ratings

Pursuing an escaped alien, Justice Keeper Anna Lenai discovers her ancestors’ lost homeworld.

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Scarlet Angel

Free
Science Fiction, Action
4.4★ 50+ ratings

Scarlett’s quest for her forgotten past leads her into a dangerous world of espionage and crime.

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Playing In The Rain

Free
Science Fiction, Suspense
4.0★ 200+ ratings

The discovery of a long-lost sister leads to a desperate bid for freedom in the riveting post-apocalyptic book Playing In The Rain.

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Maelstorm

Free
Science Fiction, Adventure
4.1★ 500+ ratings

Join Gideon Rayne on a thrilling adventure through the futuristic world of New Britain in Maelstorm.

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Genesis

Free
Science Fiction, Adventure
4.3★ 20+ ratings

Nicolette Fuller’s dystopian adventure explores themes of resilience, friendship, and the enduring hope of humanity.


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Storm Portal

Free
Science Fiction
4.3★ 400+ ratings

In this sci-fi adventure, teacher Fritz Russell finds himself at the crossroads of past and present, facing a challenge that could change history.


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Dawn of Rebellion

Free
Science Fiction, Teen
4.2★ 100+ ratings

In this gripping dystopian adventure, Dawn Nolan will risk everything to save her sister.

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Desa Kincaid – Bounty Hunter

Free
Science Fiction
3.8★ 500+ ratings

Embark on a high-stakes adventure with Desa Kincaid as she battles against time to prevent a catastrophe.

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Call of the Goddess

Free
Science Fiction, Teen
4.0★ 40+ ratings

With the fate of her people hanging in the balance, Axandra must navigate treacherous plots and dangerous factions to protect those she loves.


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Hers, Untamed

Free
Steamy Romance, Science Fiction
4.2★ 750+ ratings

Alyssa buys a fierce human-alien hybrid to be her sex pet – but what happens when he breaks out of the cage?

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Blackwing

Free
Science Fiction
4.2★ 200+ ratings

Follow Socrates Blackwing on a thrilling journey through the planes of reality as he battles ne’er-do-wells in the year 2070.

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Displaced

Free
Science Fiction
4.3★ 1000+ ratings

Enter a world of suspense and danger in ‘Displaced,’ where Kevin Murdock’s awakening aboard a transport pod sparks a thrilling battle for survival.


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Dark Days: The Dragon Engine

Free
Science Fiction
3.8★ 20+ ratings

Nothing and everything is possible in this sci-fi actioner as Detective Cajun Reyes investigates a series of mysterious murders that seem to defy science and reason.


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Forgotten Stars

Free
Science Fiction, Adventure
4.1★ 500+ ratings

Everything changes when Amber is lost on an alien world and her true powers awaken. She must keep them secret from the Coalition or pay the price.


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