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.

Maverick Gambit

Free
Science Fiction, Adventure
4.3★ 1000+ ratings

In Maverick Gambit, a ragtag crew crosses a galactic corporation to protect a town from space pirates.

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Mutation

Free
Science Fiction, Action
4.5★ 500+ ratings

Alex survived the virus, but it left him mutated. Forced into a precarious alliance with a man who hates people like him, Alex must discover the truth about this new strain.

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Beyond

Free
Science Fiction, Adventure
4.4★ 1500+ ratings

Aimee has been kidnapped, but after falling in love with Zak, she is now torn with the decision to return to Earth or live beyond the stars.


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A Thief in Time

Free
Romance, Science Fiction, Historical
4.2★ 1000+ ratings

Halley, who covers house-sitting jobs for her self-absorbed mom, has Hollywood dreams but no real life. Until the day a job for her mom leads to a tumble back in time to London, 1598.


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Emerging Storm

Free
Science Fiction, Adventure
4.0★ 200+ ratings

Celeste never wanted anyone to know her secret. And, she never dreamed it would lead her to become the Grekk Empire’s top envoy. Now, the last human serves humanity’s greatest enemy.

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Origins: Zombie Games

Free
Science Fiction, Adventure
4.2★ 1000+ ratings

Seventeen-year-old Cassandra Wild thought that living in the chaos of her mother’s home and her feelings for Bryce were a struggle until the whole world turned upside down.

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Given

Free
Steamy Romance, Science Fiction
4.3★ 1000+ ratings

Davien will do whatever it takes to get back into space. The last thing he needs is a smart-mouthed and sexy thief whose scent drives him wild.

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Displaced

FEATURED FREE BOOK
Science Fiction, Teen
4.3★ 100+ ratings

When Bea Cooper is unexpectedly transported to another place and time, it will take everything in her power to find a way back home, especially with an evil adversary trying to stop her from ever returning.

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Surviving The Evacuation: Wasteland

Free
Science Fiction, Suspense
4.4★ 5000+ ratings

Four months after the outbreak, Bill Wright found safety in southern England. He believes he knows the origin of the conspiracy that created the undead, but he needs answers.


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The Green Knight

Free
Science Fiction, Adventure
4.0★ 750+ ratings

Near the border between two kingdoms, a vessel full of innocent passengers is destroyed. While the extent of the impending retaliation is unknown, its inevitability is not. Galactic war is approaching.


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The Chaos Job

Free
Science Fiction, Adventure
4.5★ 75+ ratings

After 20 years of fighting the border wars, the damaged AI on Sil’s farm herds sheep into symbols visible from orbit. Not knowing how to channel the chaos elsewhere, she enlists the help of a former enemy soldier.

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The Sea of Storms

Free
Science Fiction, Adventure
4.1★ 750+ ratings

A ruthless invader is forcing the native Kelanni population to mine a substance from another universe with infinitely destructive power. Only a ragtag group stands in the way.


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Girl Fights Back

Free
Thriller, Science Fiction
4.4★ 1000+ ratings

Emily Kane has gone missing and the world’s spy agencies are determined to find her. They think she’s been genetically modified as a human weapon. Now, she’ll need all her skills to see tomorrow.


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Yesterday’s Thief

Free
Science Fiction, Thriller
4.4★ 1500+ ratings

When a woman materializes in midair during a televised baseball game, private detective Eric Beckman vows to figure out where—or when—she came from. And if he can’t unlock her secrets, the world will spiral into chaos.


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Endless Chaos

Free
Science Fiction, Action
4.1★ 50+ ratings

When the Coalition is swept up in a deadly game, Death Spiral, only one cadet can save them. Sharon has a mind honed to play the most brutal game of all and she has to win.

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Roy

Free
Science Fiction, Humor
4.0★ 750+ ratings

This is the story of Roy, the architect of an epic crisis that paralyzed the largest space station in the universe. The lunacy behind it remained a mystery. Until now.


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