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Free Kindle eBooks | Hard Science Fiction |

Showing Free eBook 1-30 of 282
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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: 4.10 / 5
6 reviews

The God Machine

by Michael Campling

Areva dreams of the day when he will become a Scribe and contribute to The Collective - the tethered souls, connected to the God-Machine. The Scribes write the Universe into Existence, and it's Areva's destiny to join them.
But as his time draws near, he hesitates. Perhaps the God-Machine serves a darker purpose....

Genre: Fiction, Science Fiction & Fantasy, Science Fiction, Cyberpunk, Dystopian, Hard Science Fiction, Steampunk, Teen & Young Adult
Size: 15 pages
Free eBook download for Kindle from 25 February 2020 onward  

Rating: 3.90 / 5
9 reviews

Alder's World: Part One: Mass 17

by Katie Papilio

The latest from The Dryden Experiment's founder and Chief Editor.

Pushing past the boundaries of chartered territory, Lieutenant Commander Samuel Alder and the crew of the League of Planet's deep space research vessel, "The Duster" encounter a mysterious protoplanetary disc and become embroiled in a struggle for survival that challenges the role of humans in a universe more wonderful, more spectacular and more terrifying than they ever imagined...

Genre: Fiction, Science Fiction & Fantasy, Science Fiction, Hard Science Fiction
Size: 108 pages
Free eBook download for Kindle from 25 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
3 reviews

The Chaos Trilogy: Better Life Through ACME

by Jim Hamilton

The Chaos Trilogy is a story about the past, present, and future of humanity as it struggles to rise above its natural proclivity for self-destruction. From the dawn of the Sumerian Empire to the sunset of the Shoomaran Empire, this is the tale of how it finally succeeds.The Chaos Machine: When the crew of a Shoomaran freighter find themselves stranded on Earth in 5342 BC, they learn that the native inhabitants are destined to die out in only a thousand years. Aided by a machine that can foretell the future, they are able to make minor changes from time to time in order to keep mankind on the path to survival. However, in spite of all of their efforts, one year from now, time will finally run out for everyone.Second Contact: When aliens from different parts of the Universe encounter each o...

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

Rating: 5.00 / 5
2 reviews

Move Forward One : Origins

by Bruce Polky

How do two young women become the most important humans in history?Bess is training to be the first human on Mars, fighting other hopefuls, the establishment, and her father who thinks she should be home starting a family.Iylsa wants to get away from an abusive past, and Mars is about as far away as you can get.The team is struggling to put a person on Mars when a signal from space changes everything. Mars is no longer the target, they need to go much, much further. The military, the politicians, and others fight over who should go, and what their goals should be. Bess and Iylsa become embroiled in a fight between powers that are used to making their own rules.Deep under Russian ice, Observers from light years away are watching and analyzing. Their experiment is coming to an end, and they ...

Genre: Science Fiction & Fantasy, Hard Science Fiction
Size: 136 pages
Free eBook download for Kindle from 25 February 2020 onward  

Life Sauce & Other Tales: 4 Starships & Apocalypse Tales

by Andrew McGregor

...

Genre: Science Fiction & Fantasy, Colonisation, Galactic Empire, Hard Science Fiction, Military
Size: 33 pages
Free eBook download for Kindle from 25 February 2020 onward  

A Curious Alliance

by Patrick Green

...

Genre: Fiction, Science Fiction & Fantasy, Science Fiction, First Contact, Hard Science Fiction, Space Exploration
Size: 2.48 mb
Free eBook download for Kindle from 25 February 2020 onward  

Rating: 4.00 / 5
4 reviews

A Child Of Our Time

by William Bowden

An eminent Psychologist is drafted in to investigate a mysterious Artificial Intelligence, discovered in the laboratories of a Failed Corporation, and coveted by a powerful General in the Pentagon.

Through earning its trust the Psychologist forms a deep bond with the shy and secretive machine, a bond that threatens the General’s plans to gain control of it.

A Child Of Our Time is both a technological thriller and heart breaking story of Man and Machine, each forced to confront the other’s predicament, each faced with the hardest of choices. As the story builds to a fast paced and thought provoking conclusion, the Machine is force to make that choice. In the end it is the one thing the General covets within her that shows the Machine a way out....

Genre: Crime, Thriller & Mystery, Thrillers, Suspense, Fiction, Science Fiction & Fantasy, Science Fiction, Hard Science Fiction
Size: 109 pages
Free eBook download for Kindle from 25 February 2020 onward  

Rating: 4.00 / 5
4 reviews

Bawdy Double (Galactic Adventures Book 1)

by Scott Michael Decker

The Premier's adult daughter begins behaving with an utter absence of wherewithal and insight. An Admiral's dreamboat son engages in five years of profligate behavior after his sterling, top-of-his-class Academy graduation.A doctor called in to examine both scions determines they're mutaclones. Her wife kidnapped and her clinic bombed, the doctor flees across the galaxy—into the stronghold of her antagonists....

Genre: Fiction, Science Fiction & Fantasy, Science Fiction, Genetic Engineering, Hard Science Fiction
Size: 247 pages
Free eBook download for Kindle from 25 February 2020 onward  

A Glimpse of Reality: A Juvenile Queen Bee Playing Games With Your Reality

by Simon Hadman

...

Genre: Science Fiction & Fantasy, Fantasy, Science Fiction, Alternative History, Hard Science Fiction
Size: 40 pages
Free eBook download for Kindle from 25 February 2020 onward  

LANGUAGE FROM ANOTHER WORLD (PARALLEL WORLDS Book 3)

by Salinas Segura, Luis Alberto

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

Rating: 4.40 / 5
5 reviews

Revelations: Rise of the Inquisitor

by R. E. Graham

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Genre: Science Fiction & Fantasy, Hard Science Fiction, Metaphysical & Visionary, Military, Space Opera
Size: 380 pages
Free eBook download for Kindle from 24 February 2020 onward  

Rating: 5.00 / 5
1 review

Clotho

by Christopher Keith

...

Genre: Crime, Thriller & Mystery, Suspense, Science Fiction & Fantasy, Hard Science Fiction, Time Travel
Size: 405 pages
Free eBook download for Kindle from 24 February 2020 onward  

The Five-Minute Writing Prompt Journal: 300 Prompts to Cultivate Confidence and Personal Writing

by Kean Hong Publishing

...

Genre: Science Fiction & Fantasy, Hard Science Fiction
Size: 250 pages
Free eBook download for Kindle from 24 February 2020 onward  

300 Writing Prompts: A Self-Exploration & Self-Help Journal

by Kean Hong Publishing

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Genre: Science Fiction & Fantasy, Hard Science Fiction
Size: 250 pages
Free eBook download for Kindle from 24 February 2020 onward  

Rating: 3.50 / 5
2 reviews

The Jericho Singularity

by Joel Gerard

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Genre: Crime, Thriller & Mystery, Mystery, Fiction, Action & Adventure, Science Fiction & Fantasy, Science Fiction, Adventure, First Contact, Hard Science Fiction
Size: 650 pages
Free eBook download for Kindle from 24 February 2020 onward  

Rating: 2.50 / 5
2 reviews

Dead Red: A Sci-Fi Horror Novel

by Matthew Buza

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Genre: Fiction, Horror, Science Fiction & Fantasy, Science Fiction, Colonisation, Hard Science Fiction
Size: 177 pages
Free eBook download for Kindle from 24 February 2020 onward  

Alpha Centauri: Humans Transcend . . . Humans Destroy . . . Humans . . .

by K. Anderson Yancy

Earth’s first interstellar mission arrives at the exoplanet, Alpha Centauri Bb, believing it to be uninhabitable to discover the joys and horrors of near light speed travel.

*** FREE Audiobook Companion Download link is at the very end of the e-book following Audiobooks for sale. :-) ***...

Genre: Children's eBooks, Fiction, Science Fiction & Fantasy, Science Fiction, Literature & Fiction, Hard Science Fiction, Space Exploration, Time Travel
Size: 28 pages
Free eBook download for Kindle from 24 February 2020 onward  

Rating: 4.40 / 5
5 reviews

Shattered Nine: A Sci-Fi Thriller

by C.M. Bacon

Secrets kill. Perfection destroys.∞Near Halti Fell, Northern Finland, the last of humanity has survived four hundred years in a series of crumbling habitats built to last fifty. Outside, the Earth is an irradiated wasteland of sand and desolate cities known as the scour. In the scour, nothing survives.Chief Investigator Linus Halla is tired of violence and death in cramped, rusted boxes. After twenty years on the job, he's ready to pass the title onto his last remaining deputy. Ivan Finn is young, passionate, and opinionated. With less than a year of experience, Ivan thinks he's ready for anything. When a six-year-old boy is rescued from the scour, Linus is forced to reopen the horrific case that nearly destroyed him a decade before. Who is this boy? How did he survive? And why would som...

Genre: Science Fiction & Fantasy, Dystopian, Genetic Engineering, Hard Science Fiction, Post-Apocalyptic
Size: 250 pages
Free eBook download for Kindle from 24 February 2020 onward  

Rating: 4.20 / 5
4 reviews

Tetrastatum: A Time Travel Thriller

by Dr. Richard

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Genre: Nonfiction, Politics & Social Sciences, Philosophy, Science Fiction & Fantasy, Science Fiction, Hard Science Fiction
Size: 300 pages
Free eBook download for Kindle from 24 February 2020 onward  

Wrath Rage 3: After The Knights of Wrath defeat The Deathrain family they had learn a war was coming to the planet (Wrath Rage Saga)

by Xavier Jones

...

Genre: Science Fiction & Fantasy, Hard Science Fiction
Size: 84 pages
Free eBook download for Kindle from 24 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: 3.90 / 5
4 reviews

Prophet of the Godseed: A Novel of Time Dilation and Singularity (Deep Time Book 1)

by David V. Stewart

When you travel between worlds, time slows. In the depths of deep time, travelers become ancient. They become gods.Alone, Padalmo walks through the eternally sunlit desert of Terranostra. He prays for the return of the Seeders, the race of gods who instilled all worlds with life, and that they would make him into their prophet. Above, Malcolm Macbeth watches a world that has changed radically in the 2000 years since he seeded it with human life; a world which now walks the razor edge between two kinds of annihilation: nuclear war and cognitive singularity. As war breaks out and the fate of the world races toward a grim conclusion, the Clan Macbeth must find a way to save the world - if it is worth saving at all. Moses, an refugee from Earth's ancient singularity may hold the key in his uni...

Genre: Fiction, Science Fiction & Fantasy, Science Fiction, Colonisation, Galactic Empire, Hard Science Fiction, Military, Space Exploration, Space Opera, Time Travel, Teen & Young Adult
Size: 148 pages
Free eBook download for Kindle from 24 February 2020 onward  

Rating: 3.70 / 5
4 reviews

Oasis (The Last Humans Book 1)

by Dima Zales

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Genre: Crime, Thriller & Mystery, Thrillers, Science Fiction & Fantasy, Fantasy, Fiction, Action & Adventure, Romance, Science Fiction, Adventure, Superhero, Cyberpunk, Dystopian, Galactic Empire, Genetic Engineering, Hard Science Fiction, Metaphysical & Visionary, Post-Apocalyptic, Space Exploration, TV, Movie, Video Game Adaptations, Teen & Young Adult, Literature & Fiction, Mysteries & Thrillers
Size: 370 pages
Free eBook download for Kindle from 24 February 2020 onward  

Past the Edge: and Other Stories

by S. J. Honour

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Genre: Science Fiction & Fantasy, Hard Science Fiction
Size: Unknown
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: 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  

Rating: 3.80 / 5
4 reviews

SODIUM Harbinger: (Book 1)

by Stephen Arseneault

In 1957, a group of wilderness adventurers are confronted with the unexpected. They are forced to defend themselves against an unworldly enemy. Will man's first encounter with aliens force them to run or will they stand and fight? Follow along in this first thriller in the SODIUM series as the unwitting group of hikers determine their own fate....

Genre: Science Fiction & Fantasy, Fantasy, Fiction, Action & Adventure, Science Fiction, Adventure, Superhero, Alien Invasion, Colonisation, Cyberpunk, First Contact, Galactic Empire, Genetic Engineering, Hard Science Fiction, Military, Post-Apocalyptic, Space Exploration, Teen & Young Adult
Size: 248 pages
Free eBook download for Kindle from 23 February 2020 onward  

Testament: The books of Genaro

by C.A. Hill

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Genre: Science Fiction & Fantasy, Hard Science Fiction
Size: 375 pages
Free eBook download for Kindle from 23 February 2020 onward  

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