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Free Kindle eBooks | Space Exploration |

Showing Free eBook 1-30 of 221
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43 Days to Oblivion (The Jolo Vargas Space Opera Series Book 2)

J.D. Oppenheim

Still hunted by the Fed, Jolo turns space pirate and is happy to steal what he needs from the core and live on the fringes of space in anonymity. But when the BG start attacking Fed targets and ramping up for war, he's forced into a decision. Will he sit by and let the BG worms kill huma...

Size: 202 pages

Rating: 4.70 / 5
4 reviews

Free from 22 August 2019

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

Under a Dark Sky (Worldburner Book 1)

Johan M. Dahlgren

It's a world of fighters, drunks and prostitutes. And those are the good guys.On the rebel colony planet Elysium, a man who claims to be Jesus Christ reborn is executed in a live video streamed by religious extremists. Nothing terribly original so far for Elysium.Only this time, the man do...

Size: 292 pages

Rating: 5.00 / 5
1 review

Free from 22 August 2019

Crime, Thriller & Mystery, Mystery, Thrillers, Suspense, Fiction, Action & Adventure, War, Science Fiction & Fantasy, Science Fiction, Colonisation, Cyberpunk, Dystopian, Galactic Empire, Military, Post-Apocalyptic, Space Exploration, Teen & Young Adult, Mysteries & Thrillers

Welcome to the Madhouse: A Medical Space Station Thriller (The Grace Lord Series Book 1)

S.E. Sasaki

"A layered debut that sings odes to the grandmasters of sci-fi." — Kirkus Reviews."S.E. Sasaki is a hidden treasure, a powerhouse artistic talent who in Madhouse brings us medical science fiction on a personal, engaging level that is addictive to read, sometimes scary. and always FUN. Re...

Size: 246 pages

Rating: 3.90 / 5
7 reviews

Free from 22 August 2019

Crime, Thriller & Mystery, Thrillers, Fiction, Science Fiction & Fantasy, Science Fiction, Galactic Empire, Genetic Engineering, Military, Space Exploration, Space Opera

Pioneer Horizon (Mydlands)

Perry Kirkpatrick

A group of scientists and the Marines assigned to guard them are on the surface of planet Novus-147 assessing it for potential human colonization. When a deadly storm rolls in with no warning, they lose contact with the USS Calypso in orbit overhead.Will they survive? Will they be able to ...

Size: 18 pages

Rating: 3.70 / 5
7 reviews

Free from 22 August 2019

Fiction, Short Stories, Science Fiction & Fantasy, Science Fiction, Anthologies & Short Stories, Space Exploration

The Executioner (The Cosmic Justice League Book 1)

Sam Sea

The war might be over, but for Derran, one of Imperial's most celebrated soldier, no retirement is in the cards. Offered a job to train the next generation of special imperial units, he is risking his life again. And that might be all right, as long as that does not come at the cost of e...

Size: 89 pages

Rating: 2.80 / 5
8 reviews

Free from 22 August 2019

Fiction, Action & Adventure, Science Fiction & Fantasy, Science Fiction, Adventure, Galactic Empire, Military, Space Exploration

Signal Loss: A Hayden's World Short Story (Hayden's World Origins Book 2)

S.D. Falchetti

You're on your own on the edge of nowhereLife aboard the Aristarchus isn’t much of an adventure, and Kyan just wants to do his job and get back to his family. When he discovers a mysterious object at the edge of the solar system and an unexpected contact during comms loss, data running t...

Size: 49 pages

Rating: 5.00 / 5
1 review

Free from 21 August 2019

Fiction, Action & Adventure, Short Stories, Science Fiction & Fantasy, Science Fiction, Adventure, Anthologies & Short Stories, Hard Science Fiction, Military, Space Exploration

The Martian Conspiracy

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...

Size: 232 pages

Rating: 3.80 / 5
3 reviews

Free from 21 August 2019

Crime, Thriller & Mystery, Thrillers, Fiction, Action & Adventure, Science Fiction & Fantasy, Science Fiction, Hard Science Fiction, Space Exploration

Adventures of Space Max: A Conscious Decision

K.C. Richards

...

Size: 16 pages

Free from 21 August 2019

Politics & Social Sciences, Philosophy, Science Fiction & Fantasy, Military, Space Exploration

The Alien Corps (Prosperine Book 1)

PJ McDermott

AD 2179, the planet Prosperine, twenty light years from Earth.Since the discovery of a stone burial box in Hierapolis, Turkey eighty-four years before, the Alien Corps has been searching for an interstellar messiah, without success. Until now.Hickory Lace, recently reinstated to the rank o...

Size: 306 pages

Rating: 4.00 / 5
22 reviews

Free from 21 August 2019

Children's eBooks, Science Fiction & Fantasy, Fantasy, Epic, Fiction, Action & Adventure, Science Fiction, Adventure, Literature & Fiction, Sword & Sorcery, Dystopian, First Contact, Galactic Empire, Metaphysical & Visionary, Space Exploration, Space Opera, Steampunk, Teen & Young Adult

Fundamental Force Episode One

Albert Sartison

EPISODE 1/4

Mankind was warned not to touch Pandora's box, a lost relic of an alien race, but it decided not to listen...

Through a tragic chain of events, human civilization gains access to fragments of knowledge from an ancient alien race. Unaware of the danger ...

Size: 104 pages

Rating: 4.60 / 5
3 reviews

Free from 21 August 2019

Fiction, Action & Adventure, Science Fiction & Fantasy, Science Fiction, Adventure, Alien Invasion, Colonisation, First Contact, Military, Space Exploration, Time Travel

The Halls of the Shadowmancer: An Alex Varia Tale (Grim Dark Scifi, Cosmic Horror) (The Chronicles of Alex Varia - Space Adventures of a Renegade Space Marine Recon Scout Book 1)

Eddie Patin

Alex Varia is a Recon Marine Scout and a recent defector of the United Earth Alliance...While fleeing to the outer colonies in a stolen UEA ship, Varia runs into trouble when his forsaken military pursues him to a small, insignificant star system and disables his vessel, leaving the waywar...

Size: 93 pages

Rating: 1.00 / 5
1 review

Free from 21 August 2019

Fiction, Action & Adventure, Science Fiction & Fantasy, Science Fiction, Adventure, Colonisation, Dystopian, Military, Space Exploration

The Dreamwalker

Shelly Jarvis

One fateful dream gives Kate Watzen a view into her future. The girl from a small farming community on the planet Reimer can hardly believe that the life of a Chosen could really be hers. Soon fate finds her and the Gifts she possesses will make her legendary, but only if she can ward off ...

Size: 262 pages

Rating: 4.40 / 5
4 reviews

Free from 21 August 2019

Children's eBooks, Science Fiction & Fantasy, Fantasy, Fiction, Science Fiction, Literature & Fiction, Coming of Age, Urban, First Contact, Space Exploration, Space Opera, Teen & Young Adult

War Machines: An Alien Invasion Adventure

Ayan Pratap

...

Size: 337 pages

Rating: 5.00 / 5
1 review

Free from 21 August 2019

Fiction, Action & Adventure, Science Fiction & Fantasy, Science Fiction, Adventure, Alien Invasion, First Contact, Space Exploration

Shattered Destiny Episode One

Odette C. Bell

She’s a loner. Always has been. She’s fought to survive, tooth and nail.He’s a prince of the Arterian Royal Family – the greatest power in the galaxy.They shouldn’t meet. Their paths should never intersect. But they do.Because the Milky Way is on the verge of total war once more....

Size: 138 pages

Rating: 5.00 / 5
5 reviews

Free from 20 August 2019

Fiction, Action & Adventure, Science Fiction & Fantasy, Science Fiction, Adventure, Galactic Empire, Space Exploration, Space Opera

Cygnus Rising: Humanity Returns to Space (Cygnus Space Opera Book 1)

Craig Martelle

From space they came to space they returned. Humanity would not be denied.Reviewers had this to say:"Old-fashioned space opera. Good guys, bad guys and only a bit of romance to add to the characters.""This is a great "start point" for people who do not read the original books. Taken from t...

Size: 225 pages

Rating: 4.80 / 5
6 reviews

Free from 20 August 2019

Fiction, Action & Adventure, Science Fiction & Fantasy, Science Fiction, Adventure, First Contact, Genetic Engineering, Military, Space Exploration, Space Opera, Teen & Young Adult

The Sky Drifter

Paris Singer

...

Size: 232 pages

Rating: 4.10 / 5
11 reviews

Free from 20 August 2019

Science Fiction & Fantasy, Military, Space Exploration

Harry Watt Bounty Hunter: Harry Watt Book 1

Rob Guy

For Harry Watt, Bounty Hunter, simply doing what he's told was never an option. When the best hydrologist on Earth goes AWOL after first helping himself to some company funds, Judge Headlock, Harry’s employer and nemesis, instructs him to bring back the runaway to face justice.

Size: 214 pages

Rating: 4.00 / 5
12 reviews

Free from 20 August 2019

Fiction, Action & Adventure, Humour, Science Fiction & Fantasy, Science Fiction, Adventure, Colonisation, Metaphysical & Visionary, Space Exploration, Space Opera

Kahari: The Scarab Reign

Dean Kutzler

Power across the known universe vanished.Billions of galaxies left in the dark, crippling worlds—forcing people to fight for survival. No one knew why or how.Then the answer came: The Scarab.A mysterious alien race with technology and power unseen ended the way of life for countless bei...

Size: 267 pages

Rating: 4.50 / 5
2 reviews

Free from 20 August 2019

Science Fiction & Fantasy, Science Fiction, Superhero, Alien Invasion, Colonisation, First Contact, Military, Space Exploration

The Gael Gates: Magic Versus Science (Galactic Adventures Book 2)

Scott Michael Decker

Held together for millennia by the ancient Gael Gates, The Federation is on the verge of collapse. After three people suddenly disappear into the mysterious portals, Culann Penrose is called in to investigate.Discovering that the ancient system binding the gates is crumbling, he orders the...

Size: 247 pages

Free from 20 August 2019

Crime, Thriller & Mystery, Thrillers, Fiction, Science Fiction & Fantasy, Science Fiction, Galactic Empire, Hard Science Fiction, Space Exploration

The Purple Dawn of Creation: A Journey into a Time before Time Began

Troy D. McLachlan

...

Size: 114 pages

Free from 20 August 2019

Science & Maths, Science Fiction & Fantasy, Science Fiction, First Contact, Space Exploration

The Second Coming

T.J. Sedgwick

...

Size: 261 pages

Rating: 3.70 / 5
9 reviews

Free from 19 August 2019

Science Fiction & Fantasy, Alien Invasion, First Contact, Space Exploration

The Project (The project book 1)

Stiehl Burrow

...

Size: 294 pages

Rating: 4.20 / 5
3 reviews

Free from 19 August 2019

Crime, Thriller & Mystery, Science Fiction & Fantasy, Science Fiction, Adventure, Space Exploration

Empathy in E Minor: A Short Story

Barry Ainge

An invitation to a distant planet, a group of Pilgrims endeavour to learn the religion of an Alien race. One man’s experiences differ greatly from his fellow Pilgrims....

Size: 14 pages

Free from 19 August 2019

Fiction, Short Stories, Science Fiction & Fantasy, Science Fiction, Anthologies & Short Stories, First Contact, Metaphysical & Visionary, Space Exploration

Galactic Empires: Seven Novels of Deep Space Adventure

Patty Jansen

Eight full-length novels of adventure, war, intrigue and survival in the far reaches of space.

The Backworlds by M. Pax
A man struggles to survive in the harsh world of humanity's outer settlements and prove his father wrong.

Ambassador 1: Seeing Red by Patt...

Size: Unknown

Rating: 4.00 / 5
72 reviews

Free from 19 August 2019

Fiction, Science Fiction & Fantasy, Science Fiction, Alien Invasion, Colonisation, Cyberpunk, First Contact, Galactic Empire, Military, Space Exploration, Space Opera

The Ark Gambit: Book One of The Diaspora

C.G. Lane

...

Size: 85 pages

Rating: 5.00 / 5
2 reviews

Free from 19 August 2019

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

Prelude to Ascension (The Assemblies of the Living Book 1)

Brent Clay

...

Size: 559 pages

Rating: 4.50 / 5
2 reviews

Free from 19 August 2019

Science Fiction & Fantasy, Science Fiction, First Contact, Space Exploration

Strike Battleship Argent (Starships at War Book 1)

Shane Lochlann Black

Jason Hunter, former Flight Leader of the infamous Bandit Jacks Fighter Squadron, has become the youngest Captain in Skywatch history. When an Admiral's ship disappears in the contested Gitairn Sector, Hunter re-unites his pilots to take command of DSS Argent, a brand-new strike battlesh...

Size: 355 pages

Rating: 3.60 / 5
6 reviews

Free from 19 August 2019

Fiction, Science Fiction & Fantasy, Science Fiction, Alien Invasion, Colonisation, Galactic Empire, Genetic Engineering, Military, Space Exploration, Space Opera

Edifice Abandoned: The Secret of Achernar Tertius (Alien Mysteries Book 1)

Scott Michael Decker

On her way to excavate ancient sites on a backwater planet, Archeologist Nosuma Okande finds more of them than The Institute has on record.Unearthing the sites proves more of a challenge than she realizes. On her first day she digs up an odd statuette depicting a human woman giving birth. ...

Size: 226 pages

Rating: 2.00 / 5
1 review

Free from 19 August 2019

Crime, Thriller & Mystery, Mystery, Thrillers, Suspense, Science Fiction & Fantasy, Fantasy, Fiction, Action & Adventure, Science Fiction, Adventure, Space Exploration, Teen & Young Adult, Mysteries & Thrillers

Knight's Apprentice: Knights of the Immortals

Catrina Taylor

Meet Cerita Guzman. Typical teen with all the responsibilities of an oldest child, in a struggling single parent household. After stumbling across a final rite performed by a man in a suit of armor, Cerita finds herself questioning everything she's ever known.Is Atlantis real? Are the crea...

Size: 61 pages

Rating: 4.50 / 5
18 reviews

Free from 18 August 2019

Children's eBooks, Science Fiction & Fantasy, Fantasy, Fiction, Action & Adventure, Science Fiction, Adventure, Literature & Fiction, Alternative History, Galactic Empire, Genetic Engineering, Space Exploration, Teen & Young Adult

Sleeping Gods (Verus Foundation Book 1)

Matt Eaton

Christmas Eve 1968. By NASA's best guess, the crew of Apollo 8 are an even money chance of dying as they attempt to park their supersonic spacecraft into stable lunar orbit.But they get it done, paving the way for one giant leap toward the surface. These three astronauts are the first men ...

Size: 65 pages

Rating: 3.30 / 5
5 reviews

Free from 18 August 2019

Crime, Thriller & Mystery, Thrillers, Suspense, Science Fiction & Fantasy, Fantasy, Fiction, Action & Adventure, Science Fiction, Adventure, Alternative History, First Contact, Space Exploration, Teen & Young Adult

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