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.

Forest Runners

Free
Science Fiction, Teen
4.1★ 300+ ratings

A century has passed since They arrived and enslaved mankind. Eighteen-year-old Freya may not have a special ability like other rebels, but her destiny is calling, and the truth may destroy her.


Amazon

Warpworld

Free
Science Fiction, Adventure
4.4★ 400+ ratings

To save an oppressed people and a dying planet, Seg and Ama must form an uneasy alliance. The fate of two worlds is in their hands, and together, they’ll change the course of history.


Amazon

The Tinkerer’s Daughter

Free
Science Fiction, Teen
4.3★ 2500+ ratings

Breeze is a young elven girl left in the care of a strange old Tinkerer. Under his care, she learns that the world is not as simple or safe as anyone would like it to be.

Amazon

The Tube Riders: Underground

Free
Science Fiction, Action
4.2★ 1000+ ratings

Marta Banks is a girl with an identity. She is a Tube Rider, a girl who risks death every day in abandoned underground stations in the dystopian chaos of London in 2075.


Amazon

Programmed to Please

Free
Steamy Romance, Science Fiction
4.1★ 200+ ratings

Human police agent Jai Turner goes undercover as a Beautiful Dolls robot to bring down the planet’s most notorious arms dealer, Marque Callex. But neither Jai nor Marque are what they seem.


Amazon

The Smell

Free
Science Fiction, Action
4.2★ 750+ ratings

A deadly disease called the rot has spread to the United States. Immune, Eric Vance is part of the newly formed Tactical Medical Response Team. But Dr. Talbot has other sinister plans for Vance and his family.


Amazon

Man, True Man

Free
Science Fiction, Adventure
4.0★ 300+ ratings

After a spaceship crashes into Tonath, the lone occupant survives and fights his way to sunlit part of the planet. When more strangers arrive, can they save Tonath from a thousand years of burning?


Amazon

Come Home to Me

Free
Romance, Science Fiction, Historical
4.4★ 2500+ ratings

Jake is sent back in time to protect a woman along the Oregon Trail. When he and Rachel’s forbidden attraction turns to love, what will happen at the end of the trail?

Amazon

Nyssa Glass

Free
Science Fiction, Teen, Novella
4.3★ 100+ ratings

Nyssa Glass is faced with a heartrending decision: sacrifice everything or become the very thing she’s desperate to escape.

Amazon

Survival Line

Free
Science Fiction, Action
4.2★ 30+ ratings

At 7:02 PM, every phone goes dead. No warning. No signal. No help. This is the moment everything breaks. When an EMP hits without warning, the only goal left is to find your family if you can.


Amazon

Dear Maude

Free
Science Fiction
4.4★ 1000+ ratings

A thirst for power leads wealthy aristocrats to manipulate everything, including time. With Emily Stanton’s survival in the hands of a stranger, Wendell Beringer, she discovers that he has a few secrets of his own.


Amazon

Patriot Son

Free
Thriller
4.1★ 200+ ratings

Three nations conspire to take over America and set the stage for WWIII on the shores of the US. Finally, the American people fight together for one cause; to reclaim their homeland and live free or die.


Amazon

Balanced on the Blade’s Edge

Free
Science Fiction, Action
4.4★ 5000+ ratings

Colonel Ridge Zirkander isn’t the model of military professionalism and findsunder new orders: take command of a remote prison mine in the inhospitable Ice Blades Mountains.

Amazon

Dead Quarantine

Free
Science Fiction, Teen
4.3★ 500+ ratings

There’s no warning. No rescue. No time left. To live, Ralph and Sarah will have to cross lines they never thought they would—because graduation isn’t the future anymore. Survival is.

Amazon

Defenders of the Rim: Beginnings

Free
Science Fiction, Action
4.3★ 1000+ ratings

The Galactic Empire is in Grave Danger and unaware of what’s coming! Can a group of young heroes find a way to save the galaxy and survive?


Amazon

Ship’s Boy

Free
Science Fiction, Novella
4.1★ 200+ ratings

David Birkenhead might only be twelve years old, but his entire life is already laid out for him. Then the ships of the Boyen Emperor arrive on David’s homeworld and nothing will ever be the same.


Amazon