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Free Kindle eBooks | Hard Science Fiction |

Showing Free eBook 1-30 of 282
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Fesarius: The Semnorians by JOHN ADAMS

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Genre: Science Fiction & Fantasy, Hard Science Fiction, Military / Size: Unknown / Free from 25 February 2020   Rating: 5.00 / 5 7 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...

Genre: Fiction, Science Fiction & Fantasy, Science Fiction, First Contact, Hard Science Fiction / Size: Unknown / Free from 25 February 2020   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 from 24 February 2020   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 from 23 February 2020   Rating: 5.00 / 5 5 reviews

Waking Iceman by C R Wahl

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Genre: Science Fiction & Fantasy, Hard Science Fiction / Size: 496 pages / Free from 22 February 2020   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 from 19 February 2020   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 from 18 February 2020   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 interstella...

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 from 17 February 2020   Rating: 5.00 / 5 5 reviews

The Ark Gambit: Book One of The Diaspora by C.G. Lane

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Genre: Science Fiction & Fantasy, Hard Science Fiction, Military, Space Exploration / Size: 85 pages / Free from 15 February 2020   Rating: 5.00 / 5 5 reviews

Unholy Trinity: Book 2 the Hand of Destiny Series by Martin Jones

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Genre: Science Fiction & Fantasy, Hard Science Fiction / Size: Unknown / Free from 14 February 2020   Rating: 5.00 / 5 5 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 13 February 2020   Rating: 5.00 / 5 5 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 13 February 2020   Rating: 5.00 / 5 5 reviews

The Interruption: An EMP Survival story (EMP Interruption Series Book 1) by Kip Nelson

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Genre: Science Fiction & Fantasy, Science Fiction, Hard Science Fiction / Size: 1.03 mb / Free from 10 February 2020   Rating: 5.00 / 5 5 reviews

Throwing Stones: A Short Story by D.M. Pruden

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Genre: Science Fiction & Fantasy, Science Fiction, Adventure, Colonisation, Hard Science Fiction / Size: 23 pages / Free from 10 February 2020   Rating: 5.00 / 5 5 reviews

Emergent: Book 1 of the Cerenovo Series by Michael S. Nuckols

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Genre: Crime, Thriller & Mystery, Thrillers, Fiction, Science Fiction & Fantasy, Science Fiction, Cyberpunk, Dystopian, Genetic Engineering, Hard Science Fiction / Size: 311 pages / Free from 09 February 2020   Rating: 5.00 / 5 5 reviews

Star Game: Book 1, Ascension by F. P. Trotta

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Genre: Fiction, Science Fiction & Fantasy, Science Fiction, First Contact, Hard Science Fiction, Space Opera / Size: 455 pages / Free from 08 February 2020   Rating: 5.00 / 5 5 reviews

Docile Free Ebook Preview: Chapters 1-8 by K.M. Szpara

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Genre: Fiction, Gay & Lesbian, Science Fiction & Fantasy, Science Fiction, Dystopian, Hard Science Fiction / Size: Unknown / Free from 02 February 2020   Rating: 5.00 / 5 5 reviews

Zoltan by Lyndon Hardy

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Genre: Science Fiction & Fantasy, Contemporary, Hard Science Fiction / Size: 70 pages / Free from 02 February 2020   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 ...

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 from 02 February 2020   Rating: 5.00 / 5 5 reviews

Aqueous (Chimera Series Book 2) by B C Nyren

“Not everything intelligent in the world walks on two legs, you know. Sometimes it swims.”What started as a hard-earned vacation turns into nothing short of a catastrophe for Alex and Ash. Something good, however, may come out of it in the end. Together the scientists face a hard lesso...

Genre: Science Fiction & Fantasy, Hard Science Fiction, Romance, Science Fiction / Size: 66 pages / Free from 01 February 2020   Rating: 5.00 / 5 5 reviews

When the Earth Had a Moon (Part 1) by A.M. Cunning

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Genre: Fiction, Science Fiction & Fantasy, Science Fiction, Colonisation, Dystopian, Hard Science Fiction, Military, Post-Apocalyptic / Size: 221 pages / Free from 31 January 2020   Rating: 5.00 / 5 5 reviews

ADRIANA: REALITY ONE (BOOK Book 1) by MARK Lusardi

The pale, slightly blue, alabaster skin of the child makes it seem almost angelic to the mother. Great puss filled blisters decorate the little body, but the face, the face is untouched. Clutch-ing the child to her breast, far more forcefully that she would have ever dared in life, with he...

Genre: Fiction, Science Fiction & Fantasy, Science Fiction, Hard Science Fiction, Metaphysical & Visionary / Size: 363 pages / Free from 29 January 2020   Rating: 5.00 / 5 5 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 from 16 February 2020   Rating: 5.00 / 5 4 reviews

Mass Transit by Graeme Ing

Mind over matter is more than a cliche.Controlling starships with her mind is all Emily ever dreamed of. Her graduation from the Telekinesis Traffic Control Academy is assured, unless Dylan, an irritating and cocky fellow student, ruins it for her.The utmost concentration is essential to l...

Genre: Fiction, Action & Adventure, Science Fiction & Fantasy, Science Fiction, Adventure, Hard Science Fiction / Size: 29 pages / Free from 29 January 2020   Rating: 5.00 / 5 4 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:...

Genre: Fiction, Science Fiction & Fantasy, Science Fiction, First Contact, Genetic Engineering, Hard Science Fiction / Size: Unknown / Free from 25 February 2020   Rating: 5.00 / 5 3 reviews

Fox Theory: A search for the origin by William Topchiev

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Genre: Science Fiction & Fantasy, Science Fiction, Dystopian, Hard Science Fiction / Size: 209 pages / Free from 22 February 2020   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 All...

Genre: Fiction, Gay & Lesbian, Science Fiction & Fantasy, Science Fiction, Hard Science Fiction, Space Exploration / Size: 293 pages / Free from 19 February 2020   Rating: 5.00 / 5 3 reviews

Fesarius: The Speed Trials by JOHN ADAMS

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Genre: Science Fiction & Fantasy, Hard Science Fiction / Size: Unknown / Free from 10 February 2020   Rating: 5.00 / 5 3 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 f...

Genre: Science Fiction & Fantasy, Hard Science Fiction / Size: 136 pages / Free from 25 February 2020   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 from 16 February 2020   Rating: 5.00 / 5 2 reviews

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