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.

Peyton 313

Free
Science Fiction, Suspense
4.3★ 1000+ ratings

Her cybernetic studies in genetic engineering were supposed to make the world better and Dr. Kyra Winters certainly never meant for her work to be used for anything evil.

Amazon

Beyond the Grid

Free
Science Fiction, Suspense
4.1★ 500+ ratings

Years after saying goodbye to the city, an unfortunate incident takes Jacob and his family on a drive toward the city. As they inch closer, it becomes abundantly clear they’ve made the wrong decision.


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Oblivion’s Cloak

Free
Science Fiction, Action
4.2★ 100+ ratings

A shadowy new faction is looking for Earth’s last survivor. They are a mystery to everyone but Shaara. Hard as she’s tried to forget, she knows them all too well. Which means she’s the only one who can stop them.


Amazon

No Ordinary Star

Free
Science Fiction
4.0★ 400+ ratings

A girl, hunted for the crime of being born, almost dies out on the ice. Welcome to the chilling future of humanity. The world hasn’t known hunger or sickness in hundreds of years. It has also forgotten love and beauty.


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Grounded

Free
Science Fiction, Teen
4.3★ 1000+ ratings

When my father falls ill, the doctor says a hospital outside the wall can heal him. A friend convinces me to go on rumspringa, but adventure quickly turns to horror.


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Timepiece

Free
Science Fiction, Historical
4.0★ 200+ ratings

It’s 1815, and Wellington’s outnumbered army stares across the field of Waterloo at Napoleon’s forces. Desperate to hold until reinforcements arrive, Wellington calls upon a race of monsters to help.

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Right Through Me

Free
Romance, Science Fiction, Thriller
4.2★ 500+ ratings

Biotech tycoon Noah Gallagher is a super-soldier with abilities that go far beyond human. When a vicious enemy bent on the ultimate revenge puts his murderous plan into play, Noah and Caro must battle for their lives…and their love…


Amazon

Dusk of Humanity

Free
Science Fiction, Suspense
4.3★ 200+ ratings

Dr. Egan never thought life after the apocalypse would be so dull. Until the day she finds an infected man in her operating room with symptoms she’s never seen before. And it’s spreading.


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The Rise of the River-Man

Free
Science Fiction, Novella
4.1★ 300+ ratings

Imagine a world filled with human-animal hybrids. They’re stronger than us. Faster. More deadly and hungry. Always hungry. Now, step inside the laboratory and witness their creation.

Amazon

Midnight Wings

Free
Science Fiction, Adventure
4.3★ 500+ ratings

In El’s fantasies, she pilots a fighter jet for the intergalactic fleet. In reality, she’s a mechanic whose social ranking keeps her as hired help to her stepmother. An exciting science fiction retelling of Cinderella.

Amazon

Displaced

Free
Science Fiction
4.3★ 2500+ ratings

When Kevin Murdock is revived from suspended animation aboard a transport pod, he and his nine fellow occupants discover something dangerous… something that might cost them all their lives.


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Spinward Fringe: Origins

Free
Science Fiction, Collection
4.4★ 5000+ ratings

In the distant future, one man’s mundane life takes a thrilling turn when he and his friends are thrown into a dangerous mission to acquire technology and knowledge for their nation.


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Ava’s New World

Free
Science Fiction, Novella
4.4★ 100+ ratings

Ava has a secret that could shift the balance in a world divided by wealth and technology. Although she’s inherited her father’s ingenuity for robotics and engineering, Ava has transcended her roots.

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The Survivors: Summer

Free
Science Fiction, Suspense
4.2★ 1000+ ratings

Humankind’s extinction event has come and gone. Sandy McDermott survived, but can she find a way to live in this bold new world without losing her humanity along the way?


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Take the Shilling

Free
Science Fiction, Action
4.1★ 200+ ratings

Tomas Neumann seeks escape from his backwater planet and his overbearing mother and needs a mentor. Enlisting in the Confederated Worlds military is his only opportunity.


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Rush

Free
Science Fiction, Teen
4.4★ 200+ ratings

After an accident, Miki Jones is pulled from her everyday life, trapped in an alternate reality game where she and a team of other teens battle deadly alien creatures bent on mankind’s destruction.


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