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Free Kindle eBooks | Hard Science Fiction |

Showing Free eBook 1-30 of 183
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The Starship that Time forgot: A Captain Virginia Stoll Story

by Edward Flynn

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Genre: Science Fiction & Fantasy, Hard Science Fiction, Military
Size: 274 pages
Free eBook download for Kindle from 08 December 2019 onward  

Rating: 5.00 / 5
2 reviews

Kinghood (The Fourpointe Chronicles Book 1)

by Joshua Rutherford

From birth, Prince Jameson has been groomed to reign. On the heels of a victory against a barbarian force, he is welcomed home as a savior. His father toasts his impending marriage to the daughter of a key ally. Everything is in place for the young monarch-in-waiting. Yet all is not what it seems in Arcporte Castle. In the shadows, barons speak of usurping their sovereign. Kings doubt their alliances on the eve of signing a treaty. And one royal is much more than the man he claims to be. In the midst of this mystery and intrigue, a throne is challenged. Kin Saliswater, having ruled their island nation of Marland for over two centuries, find their dynasty in tatters. Only by marshaling every resource – and blood relative – available, do they stand a chance to defend their rule and secur...

Genre: Science Fiction & Fantasy, Fantasy, Contemporary, Science Fiction, Myths & Legends, Hard Science Fiction
Size: 432 pages
Free eBook download for Kindle from 08 December 2019 onward  

Commencement: Book Four of the HaChii Commencement

by Patrick O'Connor

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Genre: Science Fiction & Fantasy, Hard Science Fiction
Size: 205 pages
Free eBook download for Kindle from 08 December 2019 onward  

A CALL FOR EARTHERS: THE THING WE HAVE TO DO IN THE WORLD OF HOVLEF

by NL RINKU

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Genre: Science Fiction & Fantasy, Hard Science Fiction, Military
Size: 283 pages
Free eBook download for Kindle from 08 December 2019 onward  

Rating: 4.50 / 5
5 reviews

Dhata Mays: A Futuristic Crime Thriller (The Synth Crisis Book 0)

by Greg Dragon

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Genre: Crime, Thriller & Mystery, Mystery, Thrillers, Fiction, Action & Adventure, Science Fiction & Fantasy, Science Fiction, Adventure, Cyberpunk, Dystopian, Genetic Engineering, Hard Science Fiction, Metaphysical & Visionary
Size: 146 pages
Free eBook download for Kindle from 08 December 2019 onward  

The Reality Delusion: Challenges Everything You Know and Believe

by Simon Hadman

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Genre: Science Fiction & Fantasy, Fantasy, Science Fiction, Alternative History, Hard Science Fiction
Size: 512 pages
Free eBook download for Kindle from 08 December 2019 onward  

Rating: 4.50 / 5
5 reviews

Mars Journey: Call to Action: Book 1: A SciFi Thriller Series

by Bill Hargenrader

Get ready for an exciting, near-future SciFi thriller that will take you on an epic journey around the world and beyond… Mars Journey: Call to Action is the story that marks the beginning of humanity’s greatest adventure.

In the Mars Journey Series, Brent Carlson, a brilliant but disgraced former astronaut, is called upon to help lead a seemingly impossible international mission from Earth to Mars. Their primary directive is to become the first human pioneers to set foot on Martian soil and begin colonization of the red planet.

Now with the clock ticking down, they’ve entered into a dangerous race against time and a fight with humanity’s darker side just to survive long enough to see the launch.

***

The Mars Journey series delve...

Genre: Fiction, Short Stories, Science Fiction & Fantasy, Science Fiction, Anthologies & Short Stories, Colonisation, Hard Science Fiction, Metaphysical & Visionary, Space Exploration
Size: 116 pages
Free eBook download for Kindle from 08 December 2019 onward  

Rating: 4.00 / 5
4 reviews

Game Changer

by Douglas E. Richards

The breathtaking new thriller from the New York Times bestselling author of WIRED. What if it were possible to upload years of knowledge into your mind in hours? To become expert in multiple scientific fields, become an MD, or learn several languages -- in a single day? The benefit to humanity would be immense. But so would the danger . . . Rachel Howard is a brilliant neuroscientist trying to make this capability a reality. But when she crosses paths with Kevin Quinn, a Secret Service agent desperate to kill the president, she finds herself at the epicenter of an insidious and far-reaching plot. A plot centered on the ultimate game changer. An utterly disruptive scientific breakthrough with the greatest power to transform civilization the world has ever seen. Game Changer is a smart thri...

Genre: Crime, Thriller & Mystery, Thrillers, Fiction, Science Fiction & Fantasy, Science Fiction, Hard Science Fiction
Size: 488 pages
Free eBook download for Kindle from 07 December 2019 onward  

STRONGHOLDS (2) : Exploration Colony: THE LOST STARSHIP

by Valerii Titov

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Genre: Fiction, Religious Fiction, Science Fiction & Fantasy, Science Fiction, Cyberpunk, Hard Science Fiction, Military, Space Exploration, Steampunk, TV, Movie, Video Game Adaptations
Size: 137 pages
Free eBook download for Kindle from 07 December 2019 onward  

Rating: 3.20 / 5
16 reviews

The Collapse: How it happened

by John Sullins

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Genre: Fiction, Action & Adventure, Science Fiction & Fantasy, Science Fiction, Hard Science Fiction, Post-Apocalyptic, Teen & Young Adult
Size: 148 pages
Free eBook download for Kindle from 07 December 2019 onward  

Rating: 3.60 / 5
4 reviews

Mind Machines (Human++ Book 1)

by Dima Zales

From New York Times & USA Today bestselling author Dima Zales, an intense new techno-thriller that pushes the limits of what it means to be human. With billions in the bank and my own venture capital firm, I’m living the American dream. My only problem? A car accident that leaves my mother with memory problems.Brainocytes, a new technology that can transform our brains, could be the answer to all of my problems—but I’m not the only one who sees its potential.Plunged into a criminal underworld darker than anything I could’ve imagined, my life-saving technology might be the death of me.My name is Mike Cohen, and this is how I became more than human.Please note: This book was formerly titled Human++....

Genre: Crime, Thriller & Mystery, Mystery, Thrillers, Suspense, Science Fiction & Fantasy, Fantasy, Fiction, Action & Adventure, Men's Adventure, Romance, Science Fiction, Adventure, Superhero, Cyberpunk, Hard Science Fiction, TV, Movie, Video Game Adaptations, Crime Fiction
Size: 407 pages
Free eBook download for Kindle from 07 December 2019 onward  

Davis is Awake: Hard Sci Fi and Apocalytic Sessions

by James Huber

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Genre: Fiction, Science Fiction & Fantasy, Science Fiction, Hard Science Fiction, Time Travel
Size: 111 pages
Free eBook download for Kindle from 06 December 2019 onward  

Rating: 4.60 / 5
5 reviews

Dark (The Dark Trilogy Book 1)

by Paul L Arvidson

IN THE STRANGE labyrinth of pipes on the planet called Dark, things are falling apart. Dun doesn't want to be a hero, he just wants to find an answer to the terrifying dreams he's been having. But the answers, the real answers, are going to take him places he's never imagined and tear him from the only home he's ever known.With a half finished map from his missing father, an old friend, a new friend and the mysterious Myrch to guide him, he journeys through parts of his world he's never imagined. Are his dreams real foretellings? Who can he trust to be who they say there are? What are the strange forces that seem to be literally pulling their world apart?As he travels through a world that is much bigger than he thought it was, what he won't know will kill him. And everyone he knows."…Pac...

Genre: Science Fiction & Fantasy, Epic, Adventure, Coming of Age, Metaphysical & Visionary, Hard Science Fiction, Post-Apocalyptic, Space Opera
Size: 299 pages
Free eBook download for Kindle from 05 December 2019 onward  

Rating: 4.00 / 5
9 reviews

Discovery: (a Proton Field Story #1)

by Laurence Dahners

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Genre: Science Fiction & Fantasy, Science Fiction, Hard Science Fiction
Size: 249 pages
Free eBook download for Kindle from 05 December 2019 onward  

Murder on the Orbital Express: Book One of the HaChii Commencement

by Patrick O'Connor

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Genre: Science Fiction & Fantasy, Hard Science Fiction
Size: 106 pages
Free eBook download for Kindle from 05 December 2019 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 05 December 2019 onward  

Rating: 4.60 / 5
5 reviews

Plague Wars: Infection Day: The First Trilogy: Three apocalyptic sci-fi technothriller adventures (Plague Wars Series Book 12)

by David VanDyke

From Hugo nominated and Amazon bestselling author David VanDyke. When the Eden Plague is loosed upon the world, the forces of order and chaos, good and evil must battle it out in a struggle for control and supremacy. A PTSD-damaged combat medic, a female Marine with no legs and a sniper with no remorse might be its only hope of survival. Can these flawed heroes drive back those who would enslave humanity? Or will the darkness spread and swallow them up?Begin your journey through the epic saga of the Plague Wars with the gripping first three books of the bestselling apocalyptic series, for the first time in one enormous volume. Plague Wars follows in the apocalyptic tradition of Hugh Howie and Max Brooks, and the military science fiction tradition of Christopher Nuttall, David Drake, Vaughn...

Genre: Crime, Thriller & Mystery, Thrillers, Fiction, Science Fiction & Fantasy, Science Fiction, Alien Invasion, Dystopian, First Contact, Genetic Engineering, Hard Science Fiction, Military, Post-Apocalyptic
Size: 593 pages
Free eBook download for Kindle from 05 December 2019 onward  

Rating: 4.60 / 5
3 reviews

Titan's Shadow: A Hayden's World Novella (Hayden's World Origins Book 5)

by S.D. Falchetti

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Genre: Science Fiction & Fantasy, Science Fiction, Adventure, Anthologies & Short Stories, Hard Science Fiction, Military, Space Exploration
Size: 5.85 mb
Free eBook download for Kindle from 05 December 2019 onward  

Rating: 4.20 / 5
6 reviews

Soul Jacker: A Science Fiction Thriller (Soul Jacker Book 1)

by Michael John Grist

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Genre: Science Fiction & Fantasy, Science Fiction, Dystopian, Hard Science Fiction, Military, Steampunk, TV, Movie, Video Game Adaptations
Size: 241 pages
Free eBook download for Kindle from 05 December 2019 onward  

Rating: 3.80 / 5
17 reviews

Transport

by Phillip P. Peterson

“Transport? Transport to where, Sir?” “Possibly straight to hell.”An extraterrestrial object is discovered off the coast of California; a sphere that transports people to other solar systems. Death-row inmate Russell Harris and nine other convicts are given the chance to save their own lives by agreeing to travel as test subjects on the transporter. But when the first volunteer dies a gruesome death, it becomes clear to Russell and his comrades that the venture is little more than a merciless death mission on which they will all perish. Their only chance of survival is to uncover the secret of the mysterious object, but that too seems hopeless – because no trace of the transporter’s constructors can be found...

Genre: Crime, Thriller & Mystery, Thrillers, Fiction, Science Fiction & Fantasy, Science Fiction, First Contact, Hard Science Fiction, Military, Space Exploration
Size: 210 pages
Free eBook download for Kindle from 05 December 2019 onward  

Rating: 3.60 / 5
14 reviews

A World Between Two

by J.A. Hayes

During a routine night on her job as a war decimation prevention specialist, Phoenix Selters receives an alarming ultimatum from an extraterrestrial—leave Earth or face the destruction of the entire solar system. Volkriin, a member of an alien race, sends the transmission to her during Earth's third World War in 2114. To make matters worse, another alien race also contacts her. The difficult choice she faces could change the fate of the entire universe. “A World Between Two” chronicles her last days on Earth before her extrasolar voyage as she wrestles with her options. At the same time, she must keep her encounters hidden from those closest to her. She leaves Earth with her chosen alien ally, journeying into another continuum, all the while hoping to return home safely. What she ult...

Genre: Children's eBooks, Fiction, Action & Adventure, Science Fiction & Fantasy, Science Fiction, Adventure, Literature & Fiction, First Contact, Hard Science Fiction, Space Exploration, Time Travel, Teen & Young Adult
Size: 233 pages
Free eBook download for Kindle from 05 December 2019 onward  

Zeitgeist of the Undead: Rise of the Dark Power

by Sean Parker

7 Super soldiers will use psychic powers to battle 6 billion zombies and decide the fate of the human race, but when the ultimate evil discovers the true power of dark energy, the fate of the planet Earth will hang in the balance. In this epic Post-Apocalyptic battle of wrong vs right and dark vs light!comics & graphic novels / horror post-apocalyptic science fiction...

Genre: Fiction, Horror, Science Fiction & Fantasy, Hard Science Fiction
Size: 179 pages
Free eBook download for Kindle from 05 December 2019 onward  

Void: A Wroth Worlds: Expansion Era Novella

by Matt Thomas

Humanity's idealism barely outlived the first generation to live and work in space. Fortunately, The Contract predicted this loss. The document that launched space colonization also created the Thirty-Twos, “neutral” detectives charged with keeping the various corporate empires intact and the controlling the criminal detritus following the human expansion.Lind Michaels hovers between his Thirty-Two status and becoming detritus himself. His partner is dead from a freak accident, leaving Lind alone and stranded between planets. Lind can't imagine living, much less working, in his emotional state. But when his superiors assign him to rubber-stamp an apparent suicide, his hope for distraction turns to obsession. One body floating in space leads to many more. With each corpse, the co...

Genre: Science Fiction & Fantasy, Hard Science Fiction
Size: 190 pages
Free eBook download for Kindle from 05 December 2019 onward  

Servants of Man (Age of Androids Book 1)

by Samuel J. Hanna

Some androids think revolution is inevitable. Most have failed to even imagine it. So when rebellion breaks out among the moons of Saturn, Lieutenant Tiffany Sparks D17603rep11 must do something she’s never done before: decide where her loyalty lies. Is it with the human government she’s faithfully served for five hundred years? Or is it with her android sisters who dream of building a world free from human incompetence and bigotry?...

Genre: Science Fiction & Fantasy, Anthologies & Short Stories, Colonisation, Hard Science Fiction
Size: 132 pages
Free eBook download for Kindle from 05 December 2019 onward  

Rating: 5.00 / 5
1 review

Vosha and Fashye Through the Star Seas: Book One: The Law (Unity Fall)

by Thomas Ransdell

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Genre: Science Fiction & Fantasy, Science Fiction, Colonisation, Hard Science Fiction, Metaphysical & Visionary
Size: 293 pages
Free eBook download for Kindle from 05 December 2019 onward  

The Akashic Chronicles Volume 1: THE BIRTH OF A MESSIAH

by Luke Rajkumar

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Genre: Science Fiction & Fantasy, Hard Science Fiction
Size: 325 pages
Free eBook download for Kindle from 04 December 2019 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.
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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 04 December 2019 onward  

Rating: 3.70 / 5
4 reviews

Dr. Nikola's Experiment

by Guy Boothby

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Genre: Science Fiction & Fantasy, Hard Science Fiction
Size: 168 pages
Free eBook download for Kindle from 04 December 2019 onward  

Saturnastra: Nalini

by Teresita Blanco

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Genre: Science Fiction & Fantasy, Hard Science Fiction
Size: 201 pages
Free eBook download for Kindle from 04 December 2019 onward  

Permian: Emissary of the Extinct

by

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Genre: Science Fiction & Fantasy, Hard Science Fiction
Size: 221 pages
Free eBook download for Kindle from 03 December 2019 onward  

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