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.

Taken

Free
Science Fiction, Romance
4.2★ 500+ ratings

Respect the alien, fear his daughter… Between dodging her claws and avoiding cultural taboos, Viktor has to show the Lyrissians that joining the Alliance is the best choice.

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Death’s Door

Free
Science Fiction, Historical
4.5★ 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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Jess Be Yourself

Free
Science Fiction, Middle Grade
4.3★ 10+ ratings

Does Jess have amnesia, or is everyone at school in on some elaborate joke? The truth is crazier and scarier than she could have ever imagined.

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Before the Cure

Free
Horror, Science Fiction
4.2★ 250+ 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.

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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.

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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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Anti Life

Free
Science Fiction, Adventure
4.0★ 750+ ratings

Space-based corporate settlements have replaced the State and Colonel John Alvarez, a fifteen-year veteran, is unwilling to waste more years leading missions into deep space.

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Releasing Rage

Free
Science Fiction, Steamy Romance
4.3★ 2500+ ratings

Half Man. Half Machine. All Hers. When Joan survives the unthinkable, Rage’s priorities are tested. Is there enough room in this cyborg’s heart for both love and revenge?

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Earth’s Angels

Free
Science Fiction, Suspense
4.0★ 100+ ratings

Melanie had everything. A loving husband and kids. A good life. Then the Earth died. Now she yearns to join the battle over Earth, but will mean putting her family at risk.


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Steamborn Box Set

Free
Science Fiction, Collection
4.5★ 500+ ratings

Jacob has yet to meet a gadget he couldn’t fix or an adventure he could resist. When a plague of terrifying creatures descends upon the town, Jacob and his friend have no choice but to run for their lives.


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Wings of Steele – Destination Unknown

Free
Science Fiction, Action
4.4★ 1000+ ratings

Life as Jack Steele knows it, is about to radically change. Accompanied by his German Shepherd, Steele experiences an abrupt and violent detour into frenzied chaos.

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Arch Allies

Free
Science Fiction, Adventure
4.4★ 500+ ratings

Experience has taught Natasha Orlov one thing —the universe will kick you when you’re down. So when she stumbles onto a starship buried in a sea of sand, she kicks right back.


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Chasm Waxing

Free
Science Fiction
3.9★ 40+ ratings

Becca and Josh work for companies from the NSA’s venture capital and startup accelerator firm. But the Director executes a personal vendetta against ISIS behind the scenes.


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Stars & Ashes

Free
Science Fiction, Action
4.3★ 75+ ratings

When invading forces annex Emankora, Kia’s family is murdered and she is sentenced to slavery in the mines. Kia will unfalteringly pursue her goal of assassinating the Heir.

Amazon

Lost

Free
Science Fiction, Adventure
4.2★ 150+ ratings

As Sadie begins to uncover the secrets of her past, her rare latent Talent is exposed and she finds herself on the run. Her choice: hide and stay lost, or fight.

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Millennium Crash

Free
Science Fiction, Suspense
4.1★ 300+ ratings

Samantha finds her team leader just in time to witness one of her colleagues kill him—and she’s the only person in a position to bring the murderer to justice.


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