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.

Fallen Star

Free
Thriller, Action
4.2★ 2500+ ratings

Captain Grant and Sergeant Maclean are drawn into a clandestine world that deals with unusual encounters. It soon becomes apparent that something dangerous is going on and not everyone is as they appear to be.

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Starshine

Free
Science Fiction, Adventure
4.3★ 2500+ ratings

An epic tale of galaxy-spanning adventure, political conspiracy, alien invasion, interstellar war, space exploration, intrigue and romance.


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Turning Point

Free
Science Fiction, Action
4.2★ 100+ ratings

They won the Metacorporate War. Now comes the hard part: Capture or kill the architect of the war. But is Captain Lonny Meyers the right officer to assume command?


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Close Liaisons

Free
Steamy Romance, Science Fiction
4.1★ 5000+ ratings

For college student Mia Stalis, the invaders—the beautiful, mysterious, vampiric Krinar—are only stories on the news. None of it concerns her until she catches Korum’s eye.


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After the War

Free
Romance, Suspense
4.2★ 40+ ratings

In the year 2068, Europe is a land reborn from the ashes of a devastating war, where society has reverted to the elegance and moral ideals of a bygone Regency era. Here, love ignites amidst the ruins.


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Max and the Multiverse

Free
Science Fiction, Humor
4.1★ 1000+ ratings

Thanks to a bizarre mishap, Max has started shifting between parallel universes whenever he sleeps. Soon, he and his cyborg cat are entangled in an intergalactic conflict.


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Earthbound

Free
Science Fiction, Historical
4.1★ 300+ ratings

Marooned in the 19th century US West, an alien must survive and return to his homeworld to destroy his mortal enemies and avenge his people.


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The Alpha Plague 2

Free
Science Fiction, Action
4.4★ 400+ ratings

Equipped with nothing but a baseball bat and his wits, Rhys enters Summit City for a second time. His son wants his Mummy, and Rhys is the only one who can save her.


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The Chosen Ones

Free
Science Fiction, Teen
4.4★ 750+ ratings

I am a chosen one. For centuries, we’ve been raised as food for those who need our life’s blood to survive. But I’m done being a pawn in the sick and twisted lives of the beautiful blood drinkers.


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Transmission

Free
Science Fiction, Action
4.0★ 2500+ ratings

A 13 year old boy, dying of a rare brain disease, is the only one able to hear and decode signals from outer space. SETI confirms it is a real signal.

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Snatchers

Free
Horror
4.2★ 750+ ratings

The slow destruction of mankind is happening due to an unknown virus that is sweeping the globe. Unlikely allies are trying to survive and coming to terms with the ‘new world.’


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Betrayal

Free
Science Fiction, Adventure
4.2★ 1000+ ratings

Captain Shepperd is about to learn that you can’t hide from the sins of your past, especially when the priceless synthetic stowaway on his ship is programmed to kill.


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Killing Time in Georgia

Free
Mystery, Historical
4.4★ 750+ ratings

Police dispatcher Georgia Belle is thrust into the 1920s. At the center of a sinister mystery with personal ties to her future, she and a detective must find the killer.


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Disruptive Shock

Free
Science Fiction, Thriller
4.2★ 750+ ratings

A yearly trek to the carnival with his young sons is the highlight of Ian Carrol’s life. What begins as another opportunity to build lifelong memories quickly fades to black by the time the sun sets.

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Quantum Incident

Free
Science Fiction, Novella
4.2★ 1000+ ratings

The long sought Higgs boson has been discovered at the Large Hadron Collider in Geneva. Scientists rejoice in the confirmation of quantum theory, but a reporter believes they may be hiding something.


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The Institute

Free
Science Fiction, Teen
4.3★ 1000+ ratings

Allira must keep her Defective brother safe from the Institute. Will they discover his ability to predict the future?

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