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Free Kindle eBooks | Hard Science Fiction |

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

JOHN ADAMS

...

Size: Unknown

Rating: 5.00 / 5
7 reviews

Free from 25 February 2020

Science Fiction & Fantasy, Hard Science Fiction, Military

The Invitation: A Journey Into Mankind's Future

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...

Size: Unknown

Rating: 5.00 / 5
5 reviews

Free from 25 February 2020

Fiction, Science Fiction & Fantasy, Science Fiction, First Contact, Hard Science Fiction

Mass Are Squared: A Science Fiction Tree, Short Story

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....

Size: 17 pages

Rating: 5.00 / 5
5 reviews

Free from 24 February 2020

Fiction, Science Fiction & Fantasy, Science Fiction, Hard Science Fiction, Teen & Young Adult

Terror Form (Centaurean Tribes Book 2)

Martin D Birch

...

Size: 374 pages

Rating: 5.00 / 5
5 reviews

Free from 23 February 2020

Science Fiction & Fantasy, Hard Science Fiction, Space Exploration

Waking Iceman

C R Wahl

...

Size: 496 pages

Rating: 5.00 / 5
5 reviews

Free from 22 February 2020

Science Fiction & Fantasy, Hard Science Fiction

Fesarius: The Marquis

JOHN ADAMS

...

Size: 247 pages

Rating: 5.00 / 5
5 reviews

Free from 19 February 2020

Science Fiction & Fantasy, Hard Science Fiction

Stratagem

Dave Blackwell

...

Size: 221 pages

Rating: 5.00 / 5
5 reviews

Free from 18 February 2020

Science Fiction & Fantasy, Dystopian, Hard Science Fiction, Post-Apocalyptic

The Response (Interstellar - Book 1)

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...

Size: 170 pages

Rating: 5.00 / 5
5 reviews

Free from 17 February 2020

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

The Ark Gambit: Book One of The Diaspora

C.G. Lane

...

Size: 85 pages

Rating: 5.00 / 5
5 reviews

Free from 15 February 2020

Science Fiction & Fantasy, Hard Science Fiction, Military, Space Exploration

Unholy Trinity: Book 2 the Hand of Destiny Series

Martin Jones

...

Size: Unknown

Rating: 5.00 / 5
5 reviews

Free from 14 February 2020

Science Fiction & Fantasy, Hard Science Fiction

Lifeline

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...

Size: 381 pages

Rating: 5.00 / 5
5 reviews

Free from 13 February 2020

Crime, Thriller & Mystery, Thrillers, Fiction, Action & Adventure, War, Science Fiction & Fantasy, Hard Science Fiction, Time Travel

MARiiMO

Tyrel Pinnegar

...

Size: 104 pages

Rating: 5.00 / 5
5 reviews

Free from 13 February 2020

Fiction, Literary Fiction, Science Fiction & Fantasy, Science Fiction, Hard Science Fiction

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

Kip Nelson

...

Size: 1.03 mb

Rating: 5.00 / 5
5 reviews

Free from 10 February 2020

Science Fiction & Fantasy, Science Fiction, Hard Science Fiction

Throwing Stones: A Short Story

D.M. Pruden

...

Size: 23 pages

Rating: 5.00 / 5
5 reviews

Free from 10 February 2020

Science Fiction & Fantasy, Science Fiction, Adventure, Colonisation, Hard Science Fiction

Emergent: Book 1 of the Cerenovo Series

Michael S. Nuckols

...

Size: 311 pages

Rating: 5.00 / 5
5 reviews

Free from 09 February 2020

Crime, Thriller & Mystery, Thrillers, Fiction, Science Fiction & Fantasy, Science Fiction, Cyberpunk, Dystopian, Genetic Engineering, Hard Science Fiction

Star Game: Book 1, Ascension

F. P. Trotta

...

Size: 455 pages

Rating: 5.00 / 5
5 reviews

Free from 08 February 2020

Fiction, Science Fiction & Fantasy, Science Fiction, First Contact, Hard Science Fiction, Space Opera

Docile Free Ebook Preview: Chapters 1-8

K.M. Szpara

...

Size: Unknown

Rating: 5.00 / 5
5 reviews

Free from 02 February 2020

Fiction, Gay & Lesbian, Science Fiction & Fantasy, Science Fiction, Dystopian, Hard Science Fiction

Zoltan

Lyndon Hardy

...

Size: 70 pages

Rating: 5.00 / 5
5 reviews

Free from 02 February 2020

Science Fiction & Fantasy, Contemporary, Hard Science Fiction

Solar Weapon (A Science Fiction Mystery/Thriller)

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 ...

Size: 286 pages

Rating: 5.00 / 5
5 reviews

Free from 02 February 2020

Crime, Thriller & Mystery, Thrillers, Science Fiction & Fantasy, Fantasy, Fiction, Action & Adventure, Science Fiction, Adventure, Alternative History, Hard Science Fiction, Military, Post-Apocalyptic

Aqueous (Chimera Series Book 2)

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...

Size: 66 pages

Rating: 5.00 / 5
5 reviews

Free from 01 February 2020

Science Fiction & Fantasy, Hard Science Fiction, Romance, Science Fiction

When the Earth Had a Moon (Part 1)

A.M. Cunning

...

Size: 221 pages

Rating: 5.00 / 5
5 reviews

Free from 31 January 2020

Fiction, Science Fiction & Fantasy, Science Fiction, Colonisation, Dystopian, Hard Science Fiction, Military, Post-Apocalyptic

ADRIANA: REALITY ONE (BOOK Book 1)

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...

Size: 363 pages

Rating: 5.00 / 5
5 reviews

Free from 29 January 2020

Fiction, Science Fiction & Fantasy, Science Fiction, Hard Science Fiction, Metaphysical & Visionary

Snowing In Johannesburg

Mark Rodseth

...

Size: 411 pages

Rating: 5.00 / 5
4 reviews

Free from 16 February 2020

Science Fiction & Fantasy, Science Fiction, Hard Science Fiction, Time Travel

Mass Transit

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...

Size: 29 pages

Rating: 5.00 / 5
4 reviews

Free from 29 January 2020

Fiction, Action & Adventure, Science Fiction & Fantasy, Science Fiction, Adventure, Hard Science Fiction

The Chaos Trilogy: Better Life Through ACME

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:...

Size: Unknown

Rating: 5.00 / 5
3 reviews

Free from 25 February 2020

Fiction, Science Fiction & Fantasy, Science Fiction, First Contact, Genetic Engineering, Hard Science Fiction

Fox Theory: A search for the origin

William Topchiev

...

Size: 209 pages

Rating: 5.00 / 5
3 reviews

Free from 22 February 2020

Science Fiction & Fantasy, Science Fiction, Dystopian, Hard Science Fiction

Faithful

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...

Size: 293 pages

Rating: 5.00 / 5
3 reviews

Free from 19 February 2020

Fiction, Gay & Lesbian, Science Fiction & Fantasy, Science Fiction, Hard Science Fiction, Space Exploration

Fesarius: The Speed Trials

JOHN ADAMS

...

Size: Unknown

Rating: 5.00 / 5
3 reviews

Free from 10 February 2020

Science Fiction & Fantasy, Hard Science Fiction

Move Forward One : Origins

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...

Size: 136 pages

Rating: 5.00 / 5
2 reviews

Free from 25 February 2020

Science Fiction & Fantasy, Hard Science Fiction

Harvest

Olga Werby

...

Size: 420 pages

Rating: 5.00 / 5
2 reviews

Free from 16 February 2020

Science Fiction & Fantasy, Hard Science Fiction

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