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.

Resurrection

Free
Horror, Science Fiction
4.2★ 1500+ ratings

Annie Starling discovers a terrifying secret after the most virulent virus the world has ever known has stripped its victims of every last thing that makes them human.


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Future City Blues

Free
Science Fiction, Collection
3.9★ 100+ ratings

Genehunter. Assassin. Private eye. Three Stories from Three Different Futures. A dark and gritty tech noir collection.

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The Enemy of an Enemy

Free
Science Fiction, Action
4.1★ 2000+ ratings

A new enemy has come to the Empire bringing with it dark powers that were abandoned long before the Empire was born.

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Fall of the Cities

Free
Science Fiction, Action
4.2★ 500+ ratings

Terrorists spark a worldwide oil crisis while imports grind to a halt. Europe and Britain are erupting into chaos. Corporal Harry Miller just wants his family to be safe.


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Surviving The Evacuation: Family

Free
Science Fiction, Suspense
4.4★ 5000+ ratings

Three months after escaping from London, Bill discovers the extent of the global war that followed the outbreak. As he finds the truth, he’ll have to choose between families.


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Incubation

Free
Science Fiction, Teen
4.3★ 1000+ ratings

Everly Jax wants to know who her parents are. Raised with other repo kids in InKubator 9, she has pinned her hopes on Reunion Day, but things go horribly awry.


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WWIV – In The Beginning

Free
Science Fiction, Suspense
4.1★ 1000+ ratings

Experts say the average “non-prepped” citizen will survive 10 days in the post-apocalyptical world. For Bill Carlson, a man with no survival training, the clock has begun.


Amazon

Silent Order: Omnibus One

Free
Science Fiction, Action, Collection
4.4★ 750+ ratings

When there is a crisis, Jack March is the man to call. But there are many forces that wish to enslave or destroy humanity, and March is the one to stop those forces.


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Paax

Free
Steamy Romance, Science Fiction
4.0★ 2000+ ratings

The situation is dangerous for a hardened warrior, let alone a soft Human female without fangs or claws to defend herself. Sending her back to Earth is the only choice.

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The Galathea Chronicles: Shadows of the Void 

Free
Science Fiction, Collection
4.1★ 400+ ratings

Growing up as a Martian on Earth has left Jas Harrington solitary, quick-tempered, and with zero tolerance for fools. Jas’s latest berth on the Galathea might be her last.


Amazon

Breakout

Free
Science Fiction, Adventure
4.5★ 200+ ratings

From high-tech power corridors to the vast reaches of space, take a thrilling journey through a world where superintelligence challenges the very essence of human existence.


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The Shadow Order

Free
Science Fiction, Collection
4.2★ 200+ ratings

If there’s a problem in the galaxy no one else can fix, the Shadow Order gets a call. But they have little time for rest as they embark on one dangerous mission after the next.

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Ure Infectus

Free
Science Fiction, Action
4.4★ 300+ ratings

Acting together in a tenuous alliance, Jericho and Masozi follow a trail of corruption across the Virgin Star System and discover something that will forever change them.

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Faring Soul

Free
Science Fiction, Romance
4.3★ 100+ ratings

Rumors emerge that Catherine has been seen in Federation space, so no one pays attention to the reticent navigator called Bedivere X who pilots her ship better than she does.


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The Hunted

Free
Science Fiction, Thriller
4.2★ 1000+ ratings

Joule and Cage Mazur feel like prisoners in their home. With monsters stalking the streets, their family’s only protection is bolting the door tight and hoping the locks hold.


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Exile

Free
Science Fiction, Action
4.5★ 1000+ ratings

Vice Admiral Isaac Gallant is the heir apparent to the dictator of the Confederacy of Humanity. Unwilling to let his mother’s tyranny stand, he joins the rebellion.


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