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.

Death by Decent Society

Free
Science Fiction, Action
4.3★ 100+ ratings

This is the future we should have seen coming. A world without governments or nations, without any law above the greed of the rich. As the outrage of the people roars and some dream of revolution, the guns of the elite roar back.

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A Dead Ship in the Deep Black

Free
Science Fiction, Adventure
4.3★ 300+ ratings

Tink is used to a life of odd jobs and even odder crewmates, working as the engineer and all-around fixer on the cargo ship Lyra. But when the ship makes a stop, things go sideways in a cosmic way.


Amazon

Oversight

Free
Science Fiction, Teen
4.2★ 100+ ratings

Seventeen-year-old Zelly is a self-proclaimed computer geek. She’s also a leader of Soul Identity, a group that promises to pass people’s fortunes and memories on to their future selves.


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Wanderer’s Escape

Free
Science Fiction, Action
4.2★ 5000+ ratings

The Empire will kill Jess for stealing this ship… but they have to catch it first! Now Jess and the ancient self-aware ship are on the run, their freedom and their very existence on the line.

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Dinosaur Lake

Free
Science Fiction, Thriller
4.3★ 2500+ ratings

An ancient predator has been reborn in the caves beneath Crater Lake… and it’s hungry. Chief Park Ranger Henry Shore must not only protect his park and his people from the monster but somehow find and destroy it.

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The Night of the Gods Book One

Free
Science Fiction,
4.1★ 40+ ratings

Max Farsight has one mission – teach a superweapon to have a heart. But no matter what he imparts, Alyssa Night can’t change the fact that she exists to destroy. The fight for eternity is here.


Amazon

Hurst

Free
Science Fiction, Action
4.0★ 1000+ ratings

Far from the smoking ruins of the cities, Hurst Castle stands alone. Hurst’s seventy-four occupants grind out a living, scavenging for food and supplies in a lawless society.


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Her Cyborg

Free
Romance, Science Fiction
4.1★ 750+ ratings

MedAct is the company that can make all your dreams come true! Just give them a call and let them create the perfect man for you. But remember, you can never give him up. It will kill him, literally.


Amazon

Poppy Bloom

Free
Science Fiction, Romance
4.0★ 50+ ratings

Vicki Morel believes she and her gorgeous fiancé have it all. They’re living the American dream until Portland is leveled by a terrorist grade light weapon, and she loses Will in the chaos.


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Death’s Door

Free
Science Fiction, Historical
4.4★ 1000+ ratings

In the fall of 1849, Edgar Allan Poe disappeared. He was missing for five days and was then found wandering near Gunnar’s Hall in Baltimore. Poe eventually stumbled into the 21st Century.

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Quantum Civil War

Free
Science Fiction, Adventure
4.1★ 200+ ratings

Opamari scientist Reno has discovered a way to send clones back in time, letting connected subjects experience entire human lives in mere moments. But altering the past has dangerous consequences.


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Before the Cure

Free
Horror, Science Fiction
4.2★ 300+ ratings

In Neil’s mind it started with the man in the park. Or, more specifically, with the vicious bite the man had given Neil. He was wrong about that. The December Plague had started weeks earlier, though no one knew it.

Amazon

Stealthy Steps

Free
Science Fiction, Christian
4.4★ 1000+ ratings

My name is Gemma Keyes. Other than my name, I am utterly forgettable. But it’s much more complicated than it sounds. And let me tell you, invisibility comes with its own set of problems.


Amazon

Harry Watt, Bounty Hunter

Free
Science Fiction, Humor
4.0★ 400+ ratings

Harry Watt is a bounty hunter who discovers something stinks about his latest case. And getting framed for murder doesn’t help. As the case unravels, Harry must call on all his skills to crack the secret of Mars.

Amazon

The Mages of Starsea

Free
Science Fiction, Adventure
4.2★ 1000+ ratings

Lucian dreams of a new life outside the cesspool of Earth. Unfortunately, his wish comes true when the government identifies him as a mage. And a mage’s fate is worse than death…


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Firmament: Radialloy

Free
Science Fiction, Adventure
4.3★ 100+ ratings

The year is 2320. Two factions are desperate for a valuable secret. Andi Lloyd must race to help her father and herself before time runs out.

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