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.

On Distant Shores

Free
Science Fiction, Adventure
4.3★ 1000+ ratings

When Chief Warrant Officer Mike Duggins and his team are assigned to a DARPA black site, reality is changed instantly, leaving them in an unrecognizable world, stalked by draconic predators.


Amazon

Crimson Tempest

Free
Science Fiction, Adventure
4.3★ 2500+ ratings

Fifty-three years after it vanished, Earth’s only Super-Devastator warship, the ESS Crimson sends out a distress signal. Captain John Nathan Duggan is given a mission to find that missing ship.


Amazon

Under Falling Skies

Free
Science Fiction, Teen
4.3★ 300+ ratings

A chance encounter with a stranger from the other side of the galaxy threatens to derail Scout’s life. The entire galaxy awaits her, if she survives the next four days.


Amazon

Soldier of Fortune

Free
Science Fiction, Adventure
4.4★ 1000+ ratings

In the distant future, on the planet Fortune, a disgraced soldier, a pint-sized thief, and a draco with attitude take on assassins, spies, and mercs-for-hire in a long overdue fight for justice.


Amazon

Rescue on Gimhae

Free
Science Fiction, Adventure
4.4★ 200+ ratings

Sgt Seavers of the Orphan Corps is having a run of bad luck. After a fight, he is informed of his penance. To get back his chance at officer candidate training, he’ll do his best or die trying.


Amazon

Emergence

Free
Science Fiction, Action
4.0★ 1000+ ratings

Aliens have invaded the Milky Way. Captain Martin and his fleet at the opposite end of our galaxy are all that stand between the emerging ancient aliens and certain destruction of humanity.

Amazon

Galaxies Lost – Episode One

Free
Science Fiction, Adventure
4.3★ 50+ ratings

Jodi is the greatest traitor the Coalition has seen – at least that’s the theory. Rotting for two years in jail, she’s dreamed of saving the galaxy. But she’s forgotten that redemption isn’t easy.

Amazon

HADRON Dark Matter

Free
Science Fiction, Action
4.2★ 2500+ ratings

When scientists at the Large Hadron Collider discover dark matter, celebration quickly turns to catastrophe. Lights go out. Networks are gone. Civilization collapses in an instant.

Amazon

Legacy

Free
Science Fiction, Teen
4.2★ 300+ ratings

Willow Oak Watson is locked inside an experimental world. Fillion Nichols has never met the girl who haunts his dreams. A chilling secret forever binds their lives together.


Amazon

Resistance

Free
Science Fiction, Action
4.1★ 100+ ratings

Her remote forest community isn’t safe anymore. Driving damaged roads to a city she hasn’t seen for six years, Jac uncovers disturbing truths about those controlling their lives


Amazon

Al Clark

Free
Science Fiction, Adventure
4.3★ 2500+ ratings

Al Clark is on a quest that will take him places he could not have imagined, manage feats he would not have thought possible, and teach him the true meaning of friendship.


Amazon

Christmas Presence

Free
Science Fiction, Teen, Holiday
4.7★ 30+ ratings

From droids in Santa suits to gingerbread rebels with attitude, Van and his crush Charli are stuck in a war between myth and madness after they were dragged into a virtual game that contained a whole world.

Amazon

Surviving The Evacuation: London

Free
Science Fiction, Suspense
4.2★ 10000+ ratings

On his journey out into the wasteland that once was England, Bill will ultimately discover the horrific truth about the outbreak and a decades old conspiracy.


Amazon

Lowan’s Checkmate

Free
Science Fiction, Mystery
4.6★ 30+ ratings

A single shot echoes through a locked hotel room, and a fortune in diamonds is missing. Stymied, the authorities call Lowan, a telepathic alien working as a private detective in the 1930s.


Amazon

Forgotten

Free
Science Fiction, Supernatural
4.3★ 1000+ ratings

While struggling to regain her memory, Lena explores her extrasensory powers. As she tries to figure out who and what she is, she makes a frightening discovery.


Amazon

Didi and the Gunslinger

Free
Science Fiction, Adventure
4.2★ 40+ ratings

With the company of her cyborg crow, Pip, Didi is happy to scour her territory for treasures discarded as trash. But when an evil Underlord kidnaps her father, Didi can no longer hide in her garbage.


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