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.

Surviving Chaos

Free
Thriller, Action
4.1★ 750+ ratings

In the blink of an eye, an EMP attack wipes out the nation’s power and the world grinds to a stop. Surrounded by chaos, Cassandra Drews is torn between tending to the injured or escaping her seething ex.


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Mind Secrets

Free
Science Fiction, Teen
4.2★ 500+ ratings

Waking up being hunted, Michael finds sanctuary with a group of telepaths who sense thoughts and emotions. To save his friends, he must confront his forgotten secrets.


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Out Of Time

Free
Thriller, Action
4.4★ 1000 ratings

As an MI6 spy in 1963, Atticus Wolfe should be enjoying everything the swinging sixties has to offer. But he’s not. That’s because Atticus Wolfe is from the 21st century.


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Ash

Free
Science Fiction, Novella, Suspense
4.4★ 500+ ratings

Facing the zombie apocalypse in a wheelchair might prove a challenge to others. For thirteen-year-old Ash, it’s just another fight for her life.


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Cul-De-Sac

Free
Science Fiction, Adventure
4.4★ 300+ ratings

Jacob Hines is thrust into a mysterious and strange walled community where secrets are kept and dangers lurk around every corner after being accused of the murder of his parents.


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Broken Skies

Free
Science Fiction, Teen
4.2★ 750+ ratings

Jax will do anything to save her twin . . . even team up with a teenage alien left behind by the same ship that took her brother. She agrees to work with the alien, but it isn’t that easy.

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The Legacy Human

Free
Science Fiction, Action
4.2★ 1000+ ratings

Elijah Brighton wants to become an ascender. But he is a legacy human, preserved and cherished for his unaltered genetic code. Soon, the ascenders and the legacies they keep start to unravel.


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Day 115 on an Alien World

Free
Science Fiction, Adventure
4.2★ 500+ ratings

After a tarnished military record leaves her unable to find work on Earth, Margo is hunting for a fresh start. A colonizing mission on a new world creates the perfect opportunity—or so she thinks.

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Oasis

Free
Science Fiction, Suspense
4.0★ 2500+ ratings

Theo is a resident of Oasis, the last habitable area on Earth. It’s meant to be a paradise, a place where we are all content. But some of aren’t.


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Captain’s Call

Free
Science Fiction, Adventure
3.8★ 100+ ratings

Ancient alien technology has altered Misty Rogers. When Special Captain Matthew Armstrong runs into her on a dirt-bucket world, he’s thrown heart-first into the adventure of his life.


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Peace Warrior

Free
Science Fiction, Action
4.3★ 1000+ ratings

It’s the mid-21st century when Sergeant First Class Grant Justice is killed during an ambush on an enemy tank column. Six hundred years later, his body is retrieved and reanimated.


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Beneath Burning Sands

Free
Science Fiction, Suspense
3.8★ 750+ ratings

Earth is dying, so Reggie Lee agrees to test an advanced hibernation technology in a month-long cryogenic sleep. He believes it will be a huge benefit to his career, but he couldn’t be more wrong.

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On Distant Shores

Free
Science Fiction, Adventure
4.3★ 1000+ ratings

When Chief Warrant Officer Mike Duggins and his team are assigned to a DARPA black site, reality is changed instantly, leaving them in an unrecognizable world, stalked by draconic predators.


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Lost Souls

Free
Science Fiction, Adventure
4.6★ 75+ ratings

A smuggler, a stowaway slave, and a pirate find themselves on a collision course deep in the no-man’s-land of space, tracking a centuries-old mystery.


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The Dawn

Free
Science Fiction, Suspense
3.9★ 500+ ratings

Zachary Christian is Delta Tower resident 8652. He has been stuck inside his tower since the war destroyed the world he knew. He should feel lucky to be alive, but is haunted by past mistakes.


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Neptune Crossing

Free
Science Fiction, Adventure
4.1★ 1000+ ratings

When John Bandicut falls into a cavern on Triton, his life changes irrevocably—and for an alien quarx, a million years of solitude abruptly comes to an end.


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