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Free Kindle eBooks | Hard Science Fiction |

Showing Free eBook 1-30 of 203
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Rating: 4.20 / 5
11 reviews

Home Planet: Awakening (Part 1)

by T.J. Sedgwick

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Genre: Science Fiction & Fantasy, Hard Science Fiction, Space Exploration
Size: 125 pages
Free eBook download for Kindle from 17 August 2019 onward  

Rating: 5.00 / 5
2 reviews

The Wanderer:: Book One of the Godsend Series Section 3

by Timothious Smith

The 3rd installment of the Book One of the Godsend Series. Da`e continues to learn his powers as things heat up between the two alien races biding for control of Earth. What do two alien races, planet Earth, memory lost, secret organizations, angels, magic, demons, space flight, spirits and the hope of all mankind have in common? His name is D`ae but on Earth he is known as Kirk Alexander Doyle. Sent to earth on a secret mission to save Earth from with in D`ae is captured and his memory is wiped. His handlers have been trying to contact him for years with no result. The United Earth Bureau of Investigation is out to capture him. The leader of an opposing Alien race wants him dead. Kirk is just trying to understand why he has all these powers that make him different from everyone else. Fol...

Genre: Fiction, Science Fiction & Fantasy, Science Fiction, Alien Invasion, Hard Science Fiction, Space Opera, Time Travel
Size: 275 pages
Free eBook download for Kindle from 17 August 2019 onward  

Rating: 5.00 / 5
1 review

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 17 August 2019 onward  

Rating: 5.00 / 5
1 review

ZONE

by Russell Corey

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Genre: Science Fiction & Fantasy, Hard Science Fiction, Time Travel
Size: 406 pages
Free eBook download for Kindle from 17 August 2019 onward  

Rating: 4.00 / 5
1 review

The Jovian Run: Sol Space Book One

by James Wilks

The year is 2126. Mars and the Moon have been colonized, and mankind has begun to push out into the Jovian sector, the dark region of space beyond the asteroid belt rich with resources but also rife with danger.Clea Staples is the captain of Gringolet, a commuter vessel that ferries passengers and cargo for the corporations that finance off-world colonies and mining operations. She and her crew have just accepted a lucrative job that will take them from Earth to Mars, and then beyond to a tiny mining facility in orbit around distant Saturn.What they don’t know, however, is that all is not as it seems. There are forces at work even beyond the machinations of the corporations, and as a series of mishaps and seemingly chance encounters bring them ever closer to disaster, it becomes clear t...

Genre: Fiction, Action & Adventure, Science Fiction & Fantasy, Science Fiction, Adventure, Hard Science Fiction
Size: 394 pages
Free eBook download for Kindle from 17 August 2019 onward  

Rating: 4.00 / 5
1 review

The Imaginary Revolution - 1

by Roy Jackaman

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Genre: Fiction, Political, Science Fiction & Fantasy, Science Fiction, Alternative History, Hard Science Fiction, Time Travel
Size: 223 pages
Free eBook download for Kindle from 17 August 2019 onward  

Out of Space – Out of Time (The Architects Series Book 1)

by Walt Christmas

Scott McKenzie is studying for finals when a cloaked figure appears out of thin air, in the center of his living room. The Marksman, as Scott decides to call him, steps out of an impossibly black, oval-shaped hole in space and shoots Scott in the cheek with a small splinter-dart. The Marksman promptly disappears, but over the coming weeks, the dart acts like an artificial virus which affects Scott in various ways— leaving him with strange and disturbing dreams, an ability to form gates and jump through space, and a host of troubling questions.Scott finds three others at the University who were also recruited by the Marksman, he encounters intelligent artifacts—only one that wants to be helpful—and, at last, he learns the vitally important task for which they were recruited....

Genre: Fiction, Action & Adventure, Science Fiction & Fantasy, Science Fiction, Adventure, Hard Science Fiction
Size: 164 pages
Free eBook download for Kindle from 17 August 2019 onward  

Hi, Guys. I'm Us.

by K. Anderson Yancy

A physically wounded soldier living his last days and an emotionally wounded woman about to commit suicide, through the aid of a visitor from the future discover they're related in a startling way....

Genre: Children's eBooks, Science, Nature & How It Works, Fiction, Science Fiction & Fantasy, Science Fiction, Literature & Fiction, Children's Fiction, Hard Science Fiction, Metaphysical & Visionary, Time Travel
Size: 22 pages
Free eBook download for Kindle from 17 August 2019 onward  

Entangled: The Chasing Light Series Book 1

by Lewis Masters

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Genre: Science Fiction & Fantasy, Hard Science Fiction
Size: 350 pages
Free eBook download for Kindle from 17 August 2019 onward  

Secret of Wormhole and Soul of Galaxies A Novel (Secret of Wormhole and Soul of Galaxies Series Book 1)

by Vikrant Singh

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Genre: Fiction, Science Fiction & Fantasy, Science Fiction, Hard Science Fiction
Size: Unknown
Free eBook download for Kindle from 17 August 2019 onward  

Rating: 4.50 / 5
13 reviews

Andrea the Martian Robot: Human Safety is a Primary Concern

by Anthony J. Deeney

Human safety is a primary concern.

No other robot can rival the new Harrowgate & Webster models, which regularly demonstrate astounding problem solving abilities and a virtually human level of awareness.

Recognising the advanced nature of these robots, Patricia Vicarro has selected HWR-001-046-QF Andrea to send to Mars in the first of a three stage project to build a colony.

She is sent in the first launch window to build the first colony pods on the base, preparing everything for the arrival of Adam Copeland.

Everything must be perfect.

Andrea spends nearly three years in isolation, preparing for Adam’s arrival. With everything ready, she watches the Martian sky eagerly, but there are powerful people who would wish t...

Genre: Fiction, Short Stories, Science Fiction & Fantasy, Science Fiction, Anthologies & Short Stories, Colonisation, Hard Science Fiction, Space Exploration
Size: 91 pages
Free eBook download for Kindle from 17 August 2019 onward  

The Hearkening: Book Two of the HaChii Convergence

by Patrick O'Connor

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Genre: Science Fiction & Fantasy, Hard Science Fiction
Size: 494 pages
Free eBook download for Kindle from 17 August 2019 onward  

Insinuate: The books of Genaro

by C. A. Hill

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Genre: Science Fiction & Fantasy, Hard Science Fiction
Size: 328 pages
Free eBook download for Kindle from 17 August 2019 onward  

Rating: 5.00 / 5
2 reviews

When The Fault Breaks: Life Will Never Be The Same (Book I)

by Xavier Bruehler

When The Fault Breaks is a post apocalypse book predicated by the rupture of the Cascadia Fault. It is about the stories and lives of survivors of the Mega Quake in a world of chaos and mayhem. It is about one possible way some semblance of a normal life can happen. You will enjoy a mix of death and destruction, current social/political outlook, humor and hope. It is not your run of the mill post apocalypse book.

Preppers, survivalists, and homesteaders will like the book because it has many ideas on how to live off grid in a rural or wilderness setting. It talks about many different types of alternative energies, and agricultural methods. It goes into how things used to be done and how it could be again.

Unlike other post apocalypse books that just talks...

Genre: Fiction, Science Fiction & Fantasy, Science Fiction, Dystopian, Hard Science Fiction, Post-Apocalyptic
Size: 520 pages
Free eBook download for Kindle from 17 August 2019 onward  

Rating: 5.00 / 5
1 review

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 17 August 2019 onward  

Eye of the Beholder

by Jim Heter

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Genre: Science Fiction & Fantasy, Hard Science Fiction
Size: 3.58 mb
Free eBook download for Kindle from 17 August 2019 onward  

Rating: 4.40 / 5
5 reviews

Echo Volume 1: Approaching Shatter

by Kent Wayne

In the late 21st century, humanity left Earth due to multiple resource shortcomings aggravated by an acceleration in climate change. They settled Echo, a planet that was nearly a carbon copy of Earth except for being devoid of all but the most basic life forms. Fast forward 1200 years later. Echo has endured over a thousand years of dark age. Corporations and government merged early on, becoming the oppressive authority known as the Regime. Military and police merged into the Department of Enforcement, their only mission to crush the huge network of rebels known as the Dissidents. Over half the planet is covered by decaying cityscapes and the elite live high above, removed and remote from the greater populace on the moon-city of Ascension. Hope lies in one man, a former Enforcer nam...

Genre: Fiction, Science Fiction & Fantasy, Science Fiction, Dystopian, Hard Science Fiction, Military, Post-Apocalyptic
Size: 268 pages
Free eBook download for Kindle from 17 August 2019 onward  

Rating: 4.40 / 5
3 reviews

Forerunner: Back To Earth

by David Klamet

He left his family.He left his world.Now Zeke Taylor is preparing to fight the Rogue, the sentient machines who have attacked his adopted home.To prepare for the next attack, when it comes--if it comes-- they've invited him to enter their military academy. There he'll compete against his comrades. Leadership and status are awarded for performance and for high scores on the simulated missions they'll run during their training.The first challenge: the Behrlende mission--a simulation of a disastrous battle over two hundred years ago. A battle from which no one has ever emerged victorious....

Genre: Fiction, Action & Adventure, Science Fiction & Fantasy, Science Fiction, Adventure, First Contact, Hard Science Fiction, Space Opera
Size: 458 pages
Free eBook download for Kindle from 17 August 2019 onward  

Rating: 4.00 / 5
4 reviews

The Zeta Grey War: How it Began (A Science Fiction Thriller)

by D F Capps

This is not a full length novel. It is a short story that sets the stage for the popular Zeta Grey War Series, in particular book 1, New Recruits, and introduces some of the main characters.A young navy lieutenant proposes to the love of his life, only to have things go horribly wrong. A decades-long struggle ensues to find justice and the means to overcome hopelessly advanced alien technology.The Zeta Grey War series is a look at the covert world of secret space programs, extraterrestrial intervention in our world, the arrival of help from other human races in the galaxy, and stunningly advanced technology already present today.The methods and agenda of a predatory alien race is also explored through the research of some of our planet's more advanced scholars and scientists.For the milita...

Genre: Fiction, Science Fiction & Fantasy, Science Fiction, Alien Invasion, Colonisation, First Contact, Hard Science Fiction
Size: 40 pages
Free eBook download for Kindle from 17 August 2019 onward  

Rating: 4.30 / 5
5 reviews

Any Alt

by William Bowden

Sci-Fi Thriller Noir, delving into the nature of realityEvyline Marron had been caught at a young age—early enough, it had been hoped, to make a difference, an intervention with good intentions, but which would unwittingly serve as the beginning of an education. How to fit in. How to be, for appearances sake, one of the sheep.Two decades on and the child psychopath is now an accomplished neuroscientist, pursuing an understanding of her own nature by peering into the deceased heads of others. And for that she needs specimens, of which there has been something of a dearth of late, a situation that had necessitated a scheme to encourage suitable candidates to gift access to their craniums upon death, a scheme that has Evyline charming her way into the heads of the great and good.But they ju...

Genre: Science Fiction & Fantasy, Alternative History, Hard Science Fiction, Metaphysical & Visionary
Size: 128 pages
Free eBook download for Kindle from 16 August 2019 onward  

Rating: 1.00 / 5
1 review

FIRST COLONY: Corridors (1), STRONGHOLDS (2) BOX SET: THE LOST ARTEFACT: THE LOST STARSHIP

by Valerii Titov

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Genre: Fiction, Science Fiction & Fantasy, Science Fiction, Colonisation, Cyberpunk, Hard Science Fiction, Military, Space Exploration
Size: 371 pages
Free eBook download for Kindle from 16 August 2019 onward  

Triroon: The Graphic Novel, Book Two of the HaChii Concatenation

by Patrick J. O'Connor

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Genre: Science Fiction & Fantasy, Hard Science Fiction
Size: 250 pages
Free eBook download for Kindle from 16 August 2019 onward  

Rating: 5.00 / 5
1 review

Edge of Darkness (Alpha Core Saga Book 1)

by Vikki Romano

In 2065, corporate sponsored governments jockey for supremacy in the biotechnical arena. Bullets and missiles take a back seat to cyber-enhanced soldiers and pulse weapons. In this extreme environment, only the most hardened body and mind can survive. Calder McKenna was a failed experiment in the military's push for power. Now a special agent for the metro task force, he lives day by day trying to forget the ones that were lost... the ones that he could have saved.When technology and humanity collide, Calder is forced to make desperate decisions, but how do you destroy the monster without becoming one yourself?...

Genre: Crime, Thriller & Mystery, Thrillers, Fiction, Science Fiction & Fantasy, Science Fiction, Cyberpunk, Hard Science Fiction, Post-Apocalyptic
Size: 306 pages
Free eBook download for Kindle from 16 August 2019 onward  

Rating: 3.70 / 5
4 reviews

The Last Cyborg

by Alex Kourvo

At age ninety-six, Randy Ennis has outlived his friends, his family, and his reputation. Now, he must outlive the medical implants that are trying to kill him.The Last Cyborg originally appeared in Triangulation: Last Contact ...

Genre: Fiction, Science Fiction & Fantasy, Science Fiction, Cyberpunk, Hard Science Fiction
Size: 15 pages
Free eBook download for Kindle from 16 August 2019 onward  

Rating: 5.00 / 5
1 review

Fesarius: The Decalon Trap

by JOHN ADAMS

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Genre: Science Fiction & Fantasy, Hard Science Fiction, Military, Space Exploration
Size: 125 pages
Free eBook download for Kindle from 16 August 2019 onward  

I Left My Life on Planet Mulon

by Benjamin Corman

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Genre: Science Fiction & Fantasy, Hard Science Fiction, Military
Size: 19 pages
Free eBook download for Kindle from 16 August 2019 onward  

Rating: 5.00 / 5
1 review

Seven Under the Suns: Short Stories for Today, and Tomorrow (Seven Science Fiction Book 1)

by Amanda MayClair

Seven science fiction shorts take us from the edge of the known world, to the farthest reaches of the undiscovered. 'Those Golden Geese' enters the life of a family farming on Mars, while 'Imminence' explores survival at the heart of the galaxy. And more!...

Genre: Fiction, Science Fiction & Fantasy, Science Fiction, Anthologies & Short Stories, Hard Science Fiction
Size: 98 pages
Free eBook download for Kindle from 16 August 2019 onward  

The Rogue #1: Sphinx Corporation Files (Shades of Gray Flash Fiction Science Fiction Action Adventure Mystery Series Book 5)

by Kristie Lynn Higgins

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Genre: Fiction, Science Fiction & Fantasy, Science Fiction, Hard Science Fiction, Post-Apocalyptic
Size: 11 pages
Free eBook download for Kindle from 16 August 2019 onward  

Rating: 4.60 / 5
3 reviews

Patriot Son: Battlefront America (Patriot Son: Dystopian Survival Book 1)

by T.A. Walters

From the Best Selling Author of the Silo 40 seriesOut of a nuclear-induced EMP, America is shaken as all three of our country's main power grids are destroyed. Trucks, cars, buses, and even trains roll to a permanent halt. Streets and highways appeared as desolate as auto junkyards and major cities became mausoleums of the millions who died from sarin gas bombings.Foreign superpowers rose up while our nation's leaders fought amongst themselves. Radical nations acquired nuclear ICBM'S and opened the door for a mass assault. Geo-satellite keycodes were sold by our nation's political power brokers; the rest, being strategic military satellites, all hacked and rendered useless. China and Soviet naval forces back up our nation's shores for radical Islamic forces to invade and round up urban cou...

Genre: Crime, Thriller & Mystery, Thrillers, Fiction, Action & Adventure, Political, War, Science Fiction & Fantasy, Science Fiction, Dystopian, Hard Science Fiction, Military, Post-Apocalyptic
Size: 185 pages
Free eBook download for Kindle from 15 August 2019 onward  

Rating: 4.00 / 5
5 reviews

Paragon.EXE (Absolute Knowledge Book 0)

by Drew Cordell

Paragon.EXE is the prequel novella to the Absolute Knowledge trilogy. Fueled by the Cold War, the development of the Absolute Knowledge project began with very different objectives than are present in the year 2146, over two hundred years in the future from the start of the Omniscient Project. Created as a project to aid leadership in the case of catastrophe, the Omniscient project was morphed by corruption and the pursuit of the unknown. These changes were hidden through time only to resurface when the stakes were much higher. Paragon.EXE takes place in the 1960s and 2020s and follows the chilling development of the Absolute Knowledge project from its cryptic roots....

Genre: Fiction, Science Fiction & Fantasy, Science Fiction, Cyberpunk, Dystopian, Galactic Empire, Hard Science Fiction
Size: 39 pages
Free eBook download for Kindle from 15 August 2019 onward  

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