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Free Kindle eBooks | Hard Science Fiction |

Showing Free eBook 1-30 of 282
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Rating: 4.90 / 5
19 reviews

Rika Outcast: A Tale of Mercenaries, Cyborgs, and Mechanized Infantry (Aeon 14: Rika's Marauders Book 1)

by M. D. Cooper

In the Age of the Orion War...Rika is mech-meat, a cyborg killing machine, created by the Genevian military and cast aside when the war was lost.Now she slings cargo on Dekar Station, falling deeper in debt as she struggles to make enough money to keep her cybernetic body functioning. The local gangs would love to have her join their ranks, and the takings would pay her bills, but the only thing Rika hates more than what she's become, is killing for others.But morals don't buy repairs and she's at the point of utter desperation when her loan holder cashes in her debt and sells her to the highest bidder.When Rika wakes, she's in a warehouse on a planet she's never heard of, and a trio of mercenaries are reassembling her body. Their mission is to kill the world's president, and her mods and ...

Genre: Fiction, Science Fiction & Fantasy, Science Fiction, Cyberpunk, Galactic Empire, Hard Science Fiction, Military, Space Opera
Size: 249 pages
Free eBook download for Kindle from 08 February 2020 onward  

Rating: 4.80 / 5
13 reviews

The Engineer's Assistant

by Adam Middlemas

You only live once: if you’re lucky.Life was a drudge. Long hours, soul destroying work, barely keeping up with the mortgage on our “dream” home. The home we bought to raise a family in. By the time we could afford kids, we’d be too old.Modern life: chasing carrots with strings attached.Then Pete, wealthy retired chief engineer, bought the house next door. Forty years on cargo ships, he’d had lots of time to experiment. Time to build a device that would be quite amazing. If he could get it to work.Forty years obsessively tinkering. Almost working, already showing an apparently magical effect. Tantalisingly close to something so radical it could reshape life on Earth. And as close as he would ever get.But then he met me. A software engineer with a dead end job and fading dreams. I...

Genre: Fiction, Action & Adventure, Science Fiction & Fantasy, Science Fiction, Hard Science Fiction
Size: 229 pages
Free eBook download for Kindle from 31 January 2020 onward  

Rating: 4.70 / 5
11 reviews

Empire Ascensions (Exile Empire Book 2)

by Joshua Done

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Genre: Science Fiction & Fantasy, Galactic Empire, Hard Science Fiction, Space Exploration, Teen & Young Adult
Size: 376 pages
Free eBook download for Kindle from 07 February 2020 onward  

Rating: 4.40 / 5
17 reviews

alecs

by Howard Marsh

Computer scientists and software developers have tried for many years to create a machine that can think and act like a human being. They haven’t succeeded yet, but they’ve come closer and closer with each new generation of hardware and software. What if they do succeed and create a cybernetic system that exhibits true intelligence sufficient to pass the Turing Test? And what would happen if this cybernetic intelligence develops some degree of self-awareness and a desire to live forever? Would it remain a slave to its creators, or would it decide for itself that it was a living entity with its own purpose in life?Those questions are the central theme in this story about an intelligent cybernetic system that was built to assist in fighting the war on terror but decided for itself th...

Genre: Fiction, Science Fiction & Fantasy, Science Fiction, Hard Science Fiction, Military
Size: 270 pages
Free eBook download for Kindle from 15 February 2020 onward  

Rating: 5.00 / 5
7 reviews

Fesarius: The Semnorians

by JOHN ADAMS

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Genre: Science Fiction & Fantasy, Hard Science Fiction, Military
Size: Unknown
Free eBook download for Kindle from 25 February 2020 onward  

Rating: 5.00 / 5
5 reviews

The Invitation: A Journey Into Mankind's Future

by Michael Mckinney

When the President of the United States stands before thousands in Miami, Florida welcoming the world to the start of the Summer Olympic games, the global event is watched by uncounted millions. No one could've foreseen the astonishingly dramatic events that will play out before spectators and be televised throughout the world. Instead of the expected games, the high speed approach of an object that eclipses the moon and soon lands less than a hundred feet from where the president is standing leaves those on the ground and television viewers around the world collectively spellbound. Hundreds of millions watch as an alien creature who calls himself a "Linesian" appears and after projecting an enormous image across the night sky visible to the entire western hemisphere, he takes all of human...

Genre: Fiction, Science Fiction & Fantasy, Science Fiction, First Contact, Hard Science Fiction
Size: Unknown
Free eBook download for Kindle from 25 February 2020 onward  

Rating: 5.00 / 5
5 reviews

Mass Are Squared: A Science Fiction Tree, Short Story

by Brian Garrison

It ought to be a simple experiment, except it's not working, and maybe that's a good thing.oo 8 ooThis is a self-contained, science fiction, short story....

Genre: Fiction, Science Fiction & Fantasy, Science Fiction, Hard Science Fiction, Teen & Young Adult
Size: 17 pages
Free eBook download for Kindle from 24 February 2020 onward  

Rating: 5.00 / 5
5 reviews

Terror Form (Centaurean Tribes Book 2)

by Martin D Birch

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Genre: Science Fiction & Fantasy, Hard Science Fiction, Space Exploration
Size: 374 pages
Free eBook download for Kindle from 23 February 2020 onward  

Rating: 5.00 / 5
5 reviews

Waking Iceman

by C R Wahl

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Genre: Science Fiction & Fantasy, Hard Science Fiction
Size: 496 pages
Free eBook download for Kindle from 22 February 2020 onward  

Rating: 5.00 / 5
5 reviews

Fesarius: The Marquis

by JOHN ADAMS

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Genre: Science Fiction & Fantasy, Hard Science Fiction
Size: 247 pages
Free eBook download for Kindle from 19 February 2020 onward  

Rating: 5.00 / 5
5 reviews

Stratagem

by Dave Blackwell

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Genre: Science Fiction & Fantasy, Dystopian, Hard Science Fiction, Post-Apocalyptic
Size: 221 pages
Free eBook download for Kindle from 18 February 2020 onward  

Rating: 5.00 / 5
5 reviews

The Response (Interstellar - Book 1)

by Gary Naiman

The greatest fighting machine the world has ever known. This tiny creature has survived dinosaurs, asteroids, mega-volcanoes, the ice age, and science’s deadliest insecticides. We've stomped her, sprayed her, and cursed her, but this time we went too far. She just received an interstellar signal to wipe us out.

Gary Naiman's sci-fi thriller opens with a global uprising of ten thousand trillion enraged ants, their target…us. With killer swarms devastating our cities and populations, a team of scientists discover the attacks have been triggered by an ill-advised NASA transmission, setting the stage for humanity's greatest battle against a formidable six-legged enemy and its alien parents.

If you’re looking for sci-fi in the spirit of Them and Starship Troopers...

Genre: Children's eBooks, Fiction, Horror, Science Fiction & Fantasy, Science Fiction, Alien Invasion, Colonisation, First Contact, Galactic Empire, Hard Science Fiction, Military, Post-Apocalyptic, Space Opera
Size: 170 pages
Free eBook download for Kindle from 17 February 2020 onward  

Rating: 5.00 / 5
5 reviews

The Ark Gambit: Book One of The Diaspora

by C.G. Lane

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Genre: Science Fiction & Fantasy, Hard Science Fiction, Military, Space Exploration
Size: 85 pages
Free eBook download for Kindle from 15 February 2020 onward  

Rating: 5.00 / 5
5 reviews

Unholy Trinity: Book 2 the Hand of Destiny Series

by Martin Jones

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Genre: Science Fiction & Fantasy, Hard Science Fiction
Size: Unknown
Free eBook download for Kindle from 14 February 2020 onward  

Rating: 5.00 / 5
5 reviews

Lifeline

by Christopher Keith

Welcome to ELF – the Extended Life Foundation. Dr Bryan Morgan, a former medic in the Royal Army Medical Corps and a psychologist, has been handpicked to work for the medically advanced ELF, a vast underground institute where people go to die in order to live. It’s a dream job, but life is never that simple, and two months into his residency it soon turns into a nightmare when he uncovers a disturbing truth. In that crucial moment, he is left questioning his entire life. Struggling with his demons and the derailment of his personal relationships, Bryan is drawn into a deadly conflict with ELF and will go to any lengths to expose the rogue foundation and end its evil misconduct. It’s not about revenge. Or stopping a dangerous regime. Or fighting for justice. It’s about protecting hi...

Genre: Crime, Thriller & Mystery, Thrillers, Fiction, Action & Adventure, War, Science Fiction & Fantasy, Hard Science Fiction, Time Travel
Size: 381 pages
Free eBook download for Kindle from 13 February 2020 onward  

Rating: 5.00 / 5
5 reviews

MARiiMO

by Tyrel Pinnegar

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Genre: Fiction, Literary Fiction, Science Fiction & Fantasy, Science Fiction, Hard Science Fiction
Size: 104 pages
Free eBook download for Kindle from 13 February 2020 onward  

Rating: 5.00 / 5
5 reviews

The Interruption: An EMP Survival story (EMP Interruption Series Book 1)

by Kip Nelson

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Genre: Science Fiction & Fantasy, Science Fiction, Hard Science Fiction
Size: 1.03 mb
Free eBook download for Kindle from 10 February 2020 onward  

Rating: 5.00 / 5
5 reviews

Throwing Stones: A Short Story

by D.M. Pruden

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Genre: Science Fiction & Fantasy, Science Fiction, Adventure, Colonisation, Hard Science Fiction
Size: 23 pages
Free eBook download for Kindle from 10 February 2020 onward  

Rating: 5.00 / 5
5 reviews

Emergent: Book 1 of the Cerenovo Series

by Michael S. Nuckols

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Genre: Crime, Thriller & Mystery, Thrillers, Fiction, Science Fiction & Fantasy, Science Fiction, Cyberpunk, Dystopian, Genetic Engineering, Hard Science Fiction
Size: 311 pages
Free eBook download for Kindle from 09 February 2020 onward  

Rating: 5.00 / 5
5 reviews

Star Game: Book 1, Ascension

by F. P. Trotta

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Genre: Fiction, Science Fiction & Fantasy, Science Fiction, First Contact, Hard Science Fiction, Space Opera
Size: 455 pages
Free eBook download for Kindle from 08 February 2020 onward  

Rating: 5.00 / 5
5 reviews

Docile Free Ebook Preview: Chapters 1-8

by K.M. Szpara

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Genre: Fiction, Gay & Lesbian, Science Fiction & Fantasy, Science Fiction, Dystopian, Hard Science Fiction
Size: Unknown
Free eBook download for Kindle from 02 February 2020 onward  

Rating: 5.00 / 5
5 reviews

Zoltan

by Lyndon Hardy

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Genre: Science Fiction & Fantasy, Contemporary, Hard Science Fiction
Size: 70 pages
Free eBook download for Kindle from 02 February 2020 onward  

Rating: 5.00 / 5
5 reviews

Solar Weapon (A Science Fiction Mystery/Thriller)

by D F Capps

A secret group of elite people has broken away from our civilization and now demand the entire world bow to their power.
IF every nation on Earth doesn't surrender total control to that elitist group, a Coronal Mass Ejection will be triggered on the sun, creating an Extinction Level Event that will incinerate the surface of the planet.
FBI agent Jake Hunter and NSA agent Honika Badger scramble through a maze of clues and evidence, desperately trying to discover who is behind this threat, and figure out how they can be stopped, as the resolve of the elite group is terrifyingly demonstrated.
...

Genre: Crime, Thriller & Mystery, Thrillers, Science Fiction & Fantasy, Fantasy, Fiction, Action & Adventure, Science Fiction, Adventure, Alternative History, Hard Science Fiction, Military, Post-Apocalyptic
Size: 286 pages
Free eBook download for Kindle from 02 February 2020 onward  

Rating: 5.00 / 5
5 reviews

Aqueous (Chimera Series Book 2)

by B C Nyren

“Not everything intelligent in the world walks on two legs, you know. Sometimes it swims.”What started as a hard-earned vacation turns into nothing short of a catastrophe for Alex and Ash. Something good, however, may come out of it in the end. Together the scientists face a hard lesson- that there is not always a right answer to every question. Often in fact, there may not be an answer at all....

Genre: Science Fiction & Fantasy, Hard Science Fiction, Romance, Science Fiction
Size: 66 pages
Free eBook download for Kindle from 01 February 2020 onward  

Rating: 5.00 / 5
5 reviews

When the Earth Had a Moon (Part 1)

by A.M. Cunning

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Genre: Fiction, Science Fiction & Fantasy, Science Fiction, Colonisation, Dystopian, Hard Science Fiction, Military, Post-Apocalyptic
Size: 221 pages
Free eBook download for Kindle from 31 January 2020 onward  

Rating: 5.00 / 5
5 reviews

ADRIANA: REALITY ONE (BOOK Book 1)

by MARK Lusardi

The pale, slightly blue, alabaster skin of the child makes it seem almost angelic to the mother. Great puss filled blisters decorate the little body, but the face, the face is untouched. Clutch-ing the child to her breast, far more forcefully that she would have ever dared in life, with head thrown back she screams to the sky, a rasping scream of anger and despair. Now, finally, she is ready to kill. To tear down the stars, rip up the world, to spit into the filthy face of God, but she soon runs out of air and her throat burns, so she crouches down to sob hot tears on to the angel face, rocking the child, speaking its name over and over as if she could somehow love it back to life. Drawn by the commotion a man watches. He looks like a tramp or a drunk, but really he is an accountant or was...

Genre: Fiction, Science Fiction & Fantasy, Science Fiction, Hard Science Fiction, Metaphysical & Visionary
Size: 363 pages
Free eBook download for Kindle from 29 January 2020 onward  

Rating: 4.30 / 5
13 reviews

Fable Hill

by Christopher Uremovich

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Genre: Fiction, Science Fiction & Fantasy, Science Fiction, Colonisation, Hard Science Fiction, Space Exploration
Size: 280 pages
Free eBook download for Kindle from 03 February 2020 onward  

Rating: 5.00 / 5
4 reviews

Snowing In Johannesburg

by Mark Rodseth

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Genre: Science Fiction & Fantasy, Science Fiction, Hard Science Fiction, Time Travel
Size: 411 pages
Free eBook download for Kindle from 16 February 2020 onward  

Rating: 5.00 / 5
4 reviews

Mass Transit

by Graeme Ing

Mind over matter is more than a cliche.Controlling starships with her mind is all Emily ever dreamed of. Her graduation from the Telekinesis Traffic Control Academy is assured, unless Dylan, an irritating and cocky fellow student, ruins it for her.The utmost concentration is essential to land a ship from orbit. When Dylan’s jealousy turns to sabotage, thousands of people will die if Emily can’t keep him out of her head. But which of them has the stronger mind?A short story.*** Note: This story is also published in the anthology Mayhem in the Air ***...

Genre: Fiction, Action & Adventure, Science Fiction & Fantasy, Science Fiction, Adventure, Hard Science Fiction
Size: 29 pages
Free eBook download for Kindle from 29 January 2020 onward  

Rating: 4.80 / 5
5 reviews

Denizen 43 (Panopticon Book 3)

by A.E. Currie

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Genre: Science Fiction & Fantasy, Hard Science Fiction
Size: 244 pages
Free eBook download for Kindle from 23 February 2020 onward  

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