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Free Kindle eBooks | Hard Science Fiction |

Showing Free eBook 1-30 of 186
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Rating: 4.40 / 5
4 reviews

Hayden's World: Volume 1 (Hayden's World Collection)

by S.D. Falchetti

...

Genre: Science Fiction & Fantasy, Science Fiction, Anthologies & Short Stories, Hard Science Fiction, Military, Space Exploration
Size: 274 pages
Free eBook download for Kindle from 21 February 2020 onward  

Death of World City (The Architects Series Book 2)

by Walt Christmas

A huge enclosed city on a world called Adamene is undergoing a massive attack by trillions of energy starved, shape changing constructs, called Rogues. Within days, the city's power will be drained and the city destroyed—along with its one hundred million human residents—unless Scott McKenzie and his four Earth companions can save them.The city is one mile high by three miles wide; it was constructed hundreds of years ago to seal off problems with the outside world and its structure allows no access beyond its own boundaries. However because of their prolonged isolation, the inhabitants have a cultural blind spot, they view the permanent walls and ceilings of the city as inviolate borders to their universe. When the city dies, the residents will be unable to breach the city walls; they...

Genre: Fiction, Action & Adventure, Science Fiction & Fantasy, Science Fiction, Adventure, Hard Science Fiction
Size: 121 pages
Free eBook download for Kindle from 21 February 2020 onward  

Dream On - A Virtual Reality novel

by Jackson V.

...

Genre: Science Fiction & Fantasy, Hard Science Fiction
Size: 2410 pages
Free eBook download for Kindle from 21 February 2020 onward  

Rating: 4.00 / 5
10 reviews

The Transmuter's Daughter

by Laurence Dahners

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Genre: Science Fiction & Fantasy, Hard Science Fiction
Size: 281 pages
Free eBook download for Kindle from 20 February 2020 onward  

Degrees Book 1: Saving The Earth

by Devon G. Crowe

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Genre: Fiction, Science Fiction & Fantasy, Science Fiction, Hard Science Fiction
Size: 270 pages
Free eBook download for Kindle from 20 February 2020 onward  

Cognition Chronicles: The Redstone Legacy

by J.R. Bale

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Genre: Crime, Thriller & Mystery, Thrillers, Science Fiction & Fantasy, Science Fiction, Hard Science Fiction
Size: 197 pages
Free eBook download for Kindle from 20 February 2020 onward  

The Zeta Grey War: The Draco (A Science Fiction Thriller)

by D F Capps

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Genre: Science Fiction & Fantasy, First Contact, Hard Science Fiction
Size: 289 pages
Free eBook download for Kindle from 20 February 2020 onward  

Rating: 4.30 / 5
4 reviews

Astrum Vermis

by John Peaseland

Frank exists in the less than caring Olympus Retirement Care Home for the Elderly and Infirm. Daily tormented by Kevin his one to one helper, he is often left in his wheelchair to fend for himself in the back garden plagued by a mist of biting midges. Without family or friends he prays every evening for death to release him from his purgatory but every morning he wakes disappointed. When he is selected by a nefarious organisation for an experimental brain transplant he is without concern; that is until he finds himself transformed into the body of a mechanical spider on a mission to save the world from extraterrestrial killer worms.As Frank becomes stronger, faster and wiser his new employers decide he is more of a liability than an asset and decide to liquidate him. Frank has other ideas....

Genre: Fiction, Action & Adventure, Science Fiction & Fantasy, Science Fiction, Adventure, Hard Science Fiction, Teen & Young Adult
Size: 274 pages
Free eBook download for Kindle from 20 February 2020 onward  

Rating: 4.00 / 5
2 reviews

Koinobi: Book one of the Koinobi Trilogy

by Reid Minnich

How far would you go to help a parasitic insect from the stars?Tweeskzaht nudges human civilization and technology forward from the shadows. Unaware of the war in the stars above it, Earth is in the cross-hairs of both sides. To save her adopted home, she must reveal herself to a small band of humans. Will Mike’s self-sacrifice, Kindra’s cunning, and David’s intelligence be enough to save Earth from becoming a hunting ground?...

Genre: Fiction, Science Fiction & Fantasy, Science Fiction, First Contact, Hard Science Fiction
Size: 207 pages
Free eBook download for Kindle from 20 February 2020 onward  

Rating: 3.20 / 5
3 reviews

Any Now

by William Bowden

Physicist Rhoda Mollo has been consigned to the fringes of what can just about be called respectable science, but even there her work is seen as more heretical than theoretical.

But strange results from the world’s largest atom smasher threaten to put her center stage, and in doing so unwittingly expose an Earth shattering discovery being kept secret from the world.

Those in possession of that secret seek to keep attention away from Rhoda by any means, only to find that she is likely a solution to a pressing problem—what is it that they have found, and why do the omnipotent organisation known as the Veil want it?

Pursuit of the answers will take them all to the very edge of reason, as they find themselves confronting the Universe itself.
<...

Genre: Crime, Thriller & Mystery, Thrillers, Fiction, Science Fiction & Fantasy, Science Fiction, First Contact, Hard Science Fiction, Metaphysical & Visionary
Size: 179 pages
Free eBook download for Kindle from 20 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
3 reviews

Faithful

by April Conrad

It is the 55th century, and Lehra Cranewing has always dreamed of traveling to the stars. Following the footsteps of her parents, she has joined ESEA, the Earth Space Exploration Administration, the paramilitary agency which controls all official exploratory missions for the Earth Star Alliance.Shortly after graduating from the academy, she makes a promise with her father that together, they will one day reach a world that has been coined “Fringe”, a habitable moon orbiting a gas giant 35 light years away. A project named “Resolute” seeks to send a craft there at 99% light speed, something that has never been done with a manned mission, and once it leaves, the craft will never return.Aydeline Rivervale is a rising star within ESEA, said to be the best efficiency expert in the whole...

Genre: Fiction, Gay & Lesbian, Science Fiction & Fantasy, Science Fiction, Hard Science Fiction, Space Exploration
Size: 293 pages
Free eBook download for Kindle from 19 February 2020 onward  

Conversity: Book Three of the HaChii Convergence

by Patrick O'Connor

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Genre: Science Fiction & Fantasy, Hard Science Fiction
Size: 314 pages
Free eBook download for Kindle from 19 February 2020 onward  

Good Vibrations - Graphic Novel: Book One of the HaChii Concatenation

by Patrick J. O'Connor

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Genre: Science Fiction & Fantasy, Hard Science Fiction
Size: 228 pages
Free eBook download for Kindle from 19 February 2020 onward  

Mind Hive: A Science Fiction Thriller

by Ellison Jr., Jake Berry

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Genre: Science Fiction & Fantasy, Hard Science Fiction
Size: 536 pages
Free eBook download for Kindle from 19 February 2020 onward  

Nocturnal Reptyle (The Dead Paper Trail Trilogy Book 2)

by Trevor R. Fairbanks

This infection
is merely a reflection
of the bleak void
that has become my soul

This reaction
to the infraction
of a primate society
and its many short comings

So I refuse to be human
in this land of disease
let me become a brand new
darker monstrosity

Abuse and mistrust chaos and lust
the lizard spreads his wings
only to discover
that he has nowhere to fly...

Genre: Fiction, Science Fiction & Fantasy, Science Fiction, Hard Science Fiction
Size: 162 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: 4.50 / 5
2 reviews

The Event

by Dick Caden

An indistinct message is received from space and is interpreted by many as the work of an Earth based government. When a second message is received, it tells mankind that the Universe is to be purged of all warlike and expansionist civilisations, but adds that the Earth is to be spared; but not without damage.After the one hour thirteen minute ‘Event’, the planet suffers stifling temperatures, a breakdown of infrastructure and the unexplained deaths of billions of seemingly healthy survivors. As the weeks and months pass, there is a belief that temperatures will stabilise and that normality will return. However, far from reaching equilibrium, the planet’s climate plunges ever downward until the Earth is covered in many metres of frozen snow. A global ice storm is followed by devastat...

Genre: Fiction, Science Fiction & Fantasy, Science Fiction, Dystopian, Hard Science Fiction
Size: 333 pages
Free eBook download for Kindle from 18 February 2020 onward  

Rating: 5.00 / 5
1 review

The Soul Cage

by David Booker

The inventor of the world's first teleportation device has been savagely murdered, and Global Inspector Burt Campbell is tasked to uncover who killed the infamous scientist. As he delves deeper into the case, strange things begin to happen. Spirits seem to be controlling deadly objects to viciously attack him, and according to the teleporter computer, the spirits are taking orders straight from the inventor's ghost.The only person with answers is the inventor's beautiful assistant, Penelope Preston... but she has secrets of her own....

Genre: Crime, Thriller & Mystery, Thrillers, Fiction, Science Fiction & Fantasy, Science Fiction, Hard Science Fiction, Metaphysical & Visionary
Size: 346 pages
Free eBook download for Kindle from 18 February 2020 onward  

Critical Mass: Book One of the HaChii Convergence

by Patrick O'Connor

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Genre: Science Fiction & Fantasy, Hard Science Fiction
Size: 396 pages
Free eBook download for Kindle from 18 February 2020 onward  

Rating: 3.80 / 5
3 reviews

The Martian Conspiracy

by John Read

The year is 2071. Devastated by the loss of his wife and son, NASA engineer John Orville signs up for a new life on Mars, implementing Project Bakersfield, a plan to combat deadly Martian storms. After a military unit lands on Mars, supposedly for a training exercise, Orville discovers the true purpose of Project Bakersfield. With the military unit going rogue, and a massive superstorm threatening imminent destruction, John Orville must fight to save the colony.

Praise for The Martian Conspiracy:

"A hard sci-fi novel with shades of Kim Stanley Robinson’s Red Mars, though much faster-paced. If, like me, you dream of living on Mars you should read this book.”
-Graeme Shimmin, Author of A Kill in the Morning
...

Genre: Crime, Thriller & Mystery, Thrillers, Fiction, Action & Adventure, Science Fiction & Fantasy, Science Fiction, Hard Science Fiction, Space Exploration
Size: 232 pages
Free eBook download for Kindle from 17 February 2020 onward  

The Lowdown in High Town (R.R. Johnson P.I. Book 1)

by DK Williamson

It is the year 2240 - In the shadow of the earth's sole remaining space elevator is the Red Light quarter of High Town. A dark world of glitz and glamour, celebrities and scavs, crime and corruption, desire and death.

The Red Light is an enigma, a place frequented by the rich and famous visiting topflight clubs, while a block away grim fate awaits the unwary and unwise who wander into the wrong refuse filled alley. A place inhabited by those with state-of-the-art intracranial reticulation and those who seek to enrich themselves through brute force. A place as seductive as it is sleazy, as entertaining as it is deadly.

The mean streets of the Red Light are a tough place to work, it's even tougher when you’re a private investigator whose client has been abducted. ...

Genre: Crime, Thriller & Mystery, Mystery, Fiction, Science Fiction & Fantasy, Science Fiction, Cyberpunk, Hard Science Fiction
Size: 285 pages
Free eBook download for Kindle from 17 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: 4.00 / 5
4 reviews

From the Void: Invasion (Colony Earth - Book 2)

by Gary Naiman

It Begins With A Blinding Light . . .We are about to be attacked by a superior alien force, the insect ancestors of our lowly ants. Book One "The Response" revealed our ants were brought here one hundred forty million years ago to rule our planet. Unfortunately, an ill-advised NASA transmission has alerted the aliens their interstellar colonization failed because of the unexpected rise of human beings. Really bad move, NASA! The enraged aliens have decided to unleash their deadly war machines against Earth with one purpose, our extermination, and they're considerably larger than their offspring. It's time to meet the parents.If you're looking for sci-fi in the spirit of "Them" and "Starship Troopers", consider "From the Void". Gary Naiman has written thirteen novels. His background include...

Genre: Fiction, Horror, Science Fiction & Fantasy, Science Fiction, Alien Invasion, Colonisation, First Contact, Galactic Empire, Hard Science Fiction, Military, Post-Apocalyptic, Space Opera
Size: 160 pages
Free eBook download for Kindle from 17 February 2020 onward  

Rating: 3.40 / 5
3 reviews

Seen And Not Seen

by William Bowden

The Veil play all sides, sometimes in our best interests, sometimes not. Now they have secretly deposited something at the United Nations – the victim of a horrifying crime against humanity. But is she a pawn or a terrifying weapon?

A clandestine government agency seeks to find out and fast, unaware that the answer lies at the centre of a man's dramatic spiral into an abyss of mania and despair that is already playing out on the world stage.

Seen And Not Seen is a technological thriller set in the near future, a world that needs to face up to its stretched resources, a bold endeavour to preserve our way of life and the dark road that some elements of the Human Race would have us take....

Genre: Crime, Thriller & Mystery, Thrillers, Fiction, Action & Adventure, Science Fiction & Fantasy, Science Fiction, Adventure, First Contact, Genetic Engineering, Hard Science Fiction
Size: 104 pages
Free eBook download for Kindle from 17 February 2020 onward  

Rating: 2.00 / 5
1 review

Love Boat: The Instigation of Inherent Insanity

by Ingo Potsch

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Genre: Science Fiction & Fantasy, Fantasy, Science Fiction, Superhero, First Contact, Hard Science Fiction, Military
Size: 663 pages
Free eBook download for Kindle from 17 February 2020 onward  

Inia: English Version

by Del Gaudio, Raffaele

SYNOPSIS:
Located today, “Inia” draws on from some recent events of the scientific world, in particular from the accident happened at the LHC of Geneva. It tames few historical facts making them part of the plot.
Among the main characters there are: Eric and James, two men of extraterrestrial origin, which with other people are the maker of the last 500 hundred years of our history; Jonah, a brilliant scientist used and guided by aliens to reach their goal. Antoine, a brilliant young man grown among humans and unaware of his alien origin and many other characters which take part in the stories of the main characters and someone will become a key point for the novel.

THE ORIGIN OF THE STORY.
“Inia” is a planet quite similar to the earth fo...

Genre: Fiction, Science Fiction & Fantasy, Science Fiction, First Contact, Hard Science Fiction, Teen & Young Adult
Size: 252 pages
Free eBook download for Kindle from 17 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
2 reviews

Harvest

by Olga Werby

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Genre: Science Fiction & Fantasy, Hard Science Fiction
Size: 420 pages
Free eBook download for Kindle from 16 February 2020 onward  

Rating: 4.00 / 5
1 review

Revelations: Kingdom of Sand - Book 1: Judgment Day

by R. E. Graham

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Genre: Science Fiction & Fantasy, Hard Science Fiction, Military
Size: 404 pages
Free eBook download for Kindle from 16 February 2020 onward  

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