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Free Kindle eBooks | Hard Science Fiction |

Showing Free eBook 1-30 of 225
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Any Mouse: RYP#35 by Trevor R. Fairbanks

in 2114 rock and roll is still dangerous....

Genre: Fiction, Science Fiction & Fantasy, Science Fiction, Hard Science Fiction / Size: 247 pages / Free from 17 September 2019  

Connect by Kenneth Burstall

Earth is failing. The last hope of humanity is the starship Unity, on route to a habitable planet on a journey that will take thousands of years and that also looks likely to fail. Sri, however, has other, greater plans ......

Genre: Fiction, Science Fiction & Fantasy, Science Fiction, Hard Science Fiction, Military, Post-Apocalyptic / Size: 29 pages / Free from 17 September 2019   Rating: 1.00 / 5 1 review

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 from 16 September 2019   Rating: 4.20 / 5 11 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 a...

Genre: Fiction, Science Fiction & Fantasy, Science Fiction, Alien Invasion, Hard Science Fiction, Space Opera, Time Travel / Size: 275 pages / Free from 16 September 2019   Rating: 5.00 / 5 2 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 lif...

Genre: Crime, Thriller & Mystery, Thrillers, Fiction, Action & Adventure, War, Science Fiction & Fantasy, Hard Science Fiction, Time Travel / Size: 381 pages / Free from 16 September 2019   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 from 16 September 2019   Rating: 5.00 / 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 passen...

Genre: Fiction, Action & Adventure, Science Fiction & Fantasy, Science Fiction, Adventure, Hard Science Fiction / Size: 394 pages / Free from 16 September 2019   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 from 16 September 2019   Rating: 4.00 / 5 1 review

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 Marks...

Genre: Fiction, Action & Adventure, Science Fiction & Fantasy, Science Fiction, Adventure, Hard Science Fiction / Size: 164 pages / Free from 16 September 2019  

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 from 16 September 2019  

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 from 16 September 2019  

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 from 16 September 2019  

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 V...

Genre: Fiction, Short Stories, Science Fiction & Fantasy, Science Fiction, Anthologies & Short Stories, Colonisation, Hard Science Fiction, Space Exploration / Size: 91 pages / Free from 16 September 2019   Rating: 4.50 / 5 13 reviews

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 from 16 September 2019  

Insinuate: The books of Genaro by C. A. Hill

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Genre: Science Fiction & Fantasy, Hard Science Fiction / Size: 328 pages / Free from 16 September 2019  

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...

Genre: Fiction, Science Fiction & Fantasy, Science Fiction, Dystopian, Hard Science Fiction, Post-Apocalyptic / Size: 520 pages / Free from 16 September 2019   Rating: 5.00 / 5 2 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 from 16 September 2019   Rating: 5.00 / 5 1 review

Eye of the Beholder by Jim Heter

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Genre: Science Fiction & Fantasy, Hard Science Fiction / Size: 3.58 mb / Free from 16 September 2019  

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 la...

Genre: Fiction, Science Fiction & Fantasy, Science Fiction, Dystopian, Hard Science Fiction, Military, Post-Apocalyptic / Size: 268 pages / Free from 16 September 2019   Rating: 4.40 / 5 5 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 c...

Genre: Fiction, Action & Adventure, Science Fiction & Fantasy, Science Fiction, Adventure, First Contact, Hard Science Fiction, Space Opera / Size: 458 pages / Free from 16 September 2019   Rating: 4.40 / 5 3 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 d...

Genre: Fiction, Science Fiction & Fantasy, Science Fiction, Alien Invasion, Colonisation, First Contact, Hard Science Fiction / Size: 40 pages / Free from 16 September 2019   Rating: 4.00 / 5 4 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,...

Genre: Science Fiction & Fantasy, Alternative History, Hard Science Fiction, Metaphysical & Visionary / Size: 128 pages / Free from 16 September 2019   Rating: 4.30 / 5 5 reviews

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 from 16 September 2019   Rating: 1.00 / 5 1 review

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 from 16 September 2019  

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 experime...

Genre: Crime, Thriller & Mystery, Thrillers, Fiction, Science Fiction & Fantasy, Science Fiction, Cyberpunk, Hard Science Fiction, Post-Apocalyptic / Size: 306 pages / Free from 15 September 2019   Rating: 5.00 / 5 1 review

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 from 15 September 2019   Rating: 3.70 / 5 4 reviews

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 from 15 September 2019   Rating: 5.00 / 5 1 review

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 from 15 September 2019  

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 from 15 September 2019   Rating: 5.00 / 5 1 review

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 from 15 September 2019  

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