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.

Irrelevant

Free
Science Fiction, Teen
4.2★ 500+ ratings

Mallory’s terrible secret has been exposed. Branded Irrelevant, she is cut off from everything she knows. To survive in the wasteland, Mallory must figure out who to trust.


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Tiger’s Gambit

Free
Science Fiction, Romance
4.3★ 500+ ratings

Earth is dying, humanity borders on extinction. Our plight seems hopeless. When my transport is hijacked, I’m forced to show my true form to protect myself.


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It Ain’t Over…

Free
Science Fiction, Adventure
4.6★ 2500+ ratings

Buy a planet and disappear. That’s all Cole wanted. But when Cole saves a castaway and stumbles into a crew of his own, he starts down a path that will force him to choose.


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Talented

Free
Science Fiction, Teen
4.3★ 1000+ ratings

Talia Lyons has one goal at the McDonough School for the Talented: learn to use her Talent as a Mental Manipulator to kill Ian Crane, the man who murdered her parents.


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The Syndicate

Free
Science Fiction, Teen
4.5★ 500+ ratings

As a Runner for the underground syndicate that controls the timewaves, Stassi’s job is to seamlessly slip through the past to acquire relics once lost in history.


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The Solid-State Shuffle

Free
Science Fiction, Suspense
4.1★ 750+ ratings

Thrust into a high-stakes game of subterfuge and deception, Isa and her crew must scramble to unravel the mystery of what it is they stole while forces move against them.


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Exodus

Free
Science Fiction
4.1★ 5000+ ratings

When mankind faces extinction, how can anyone survive? As mankind on Earth faces its final blow, the selected few set course for Aurora, more than 40 light years away.


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Negation Force

Free
Science Fiction, Action
4.3★ 2500+ ratings

After Atlantis is attacked, Sergeant Eric McKinney is determined to fight back and find out why the Vraxar have come. The answers are more shocking than anyone could imagine.


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War Begins

Free
Science Fiction, Adventure
4.3★ 500+ ratings

An ancient race left a gift inside Diana’s mind, and it will now rise. The greatest enemy the galaxy has ever known is here. The war will begin.


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Star Nomad

Free
Science Fiction, Adventure
4.4★ 5000+ ratings

Alisa has more problems than she can count, but she can’t let cyborgs, savages, or ancient malfunctioning ships stand in her way. If she does, she’ll never see her daughter again.

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The Eye of the Gods

Free
Science Fiction, Adventure
4.2★ 400+ ratings

Vivian Bond and Special Commander Jake Trace are thrown together in a fight for the Milky Way and beyond as an ancient power rises once more.


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Breakers: Books 1-3

Free
Science Fiction
4.4★ 5000+ ratings

In the Breakers series, humanity faces not one apocalypse, but two: first a lethal pandemic, then a war against those who made the virus.


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