Fiction » Science fiction » Hard sci-fi

The God Mars Book Four: Live Blades
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Series: The God Mars, Book 4. Price: $3.99 USD. Words: 134,270. Language: English. Published: July 14, 2014. Category: Fiction » Science fiction » Utopias & dystopias
(5.00 from 1 review)
Earth’s reckless use of a nuclear weapon has threatened the lives of those living in Melas, prompting a band of Nomads to seek a new home in the more livable—and more dangerous—Coprates to the east. A young Eternal embarks on a journey to prove himself a hero. A former enemy tries to earn her place in the UN planetary forces. And a terrifying new threat arises from a world that never happened.
The God Mars Book Three: The Devil You Are
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Series: The God Mars, Book 3. Price: $3.99 USD. Words: 123,670. Language: English. Published: October 1, 2013. Category: Fiction » Science fiction » Utopias & dystopias
(5.00 from 1 review)
As the peoples of Mars find themselves caught in an escalating war between an oppressive Earth and an apparently invincible enemy who claims to be from an alternate future, Colonel Ram awakens to find that he has been remade into an immortal superhuman in order to try to save all that he holds dear. But those he would help are terrified of what he’s become. And he’s not the only one of his kind…
The God Mars Book Two: Lost Worlds
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Series: The God Mars, Book 2. Price: $1.99 USD. Words: 113,140. Language: English. Published: March 29, 2013. Category: Fiction » Science fiction » Hard sci-fi
(5.00 from 2 reviews)
The marooned UN survivors continue to try to establish peaceful relations with the competing factions on Mars, a challenge that becomes more urgent when a radically changed Earth finally does answer their distress calls. Because Earth does fear what’s happened on Mars, perhaps enough to attempt once again to destroy all life on the surface.
The God Mars Book One: CROATOAN
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Series: The God Mars, Book 1. Price: $0.99 USD. Words: 129,870. Language: English. Published: January 30, 2013. Category: Fiction » Science fiction » Hard sci-fi
(5.00 from 2 reviews)
The survivors of a nuclear disaster on Mars awaken after a half-century in chemical hibernation, and try to unravel the mystery of why no rescue has come for them. Attempts to contact Earth fail, and they begin to encounter the descendants of other survivors...
From a Changeling Star
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Price: $0.99 USD. Words: 110,570. Language: English. Published: July 22, 2014. Category: Fiction » Science fiction » Hard sci-fi
Deep in the fires of Betelgeuse, scientists anxiously await the one man essential to the greatest engineering project in history. But on Kantano's World, Willard Ruskin battles invisible agents for control of his life, and even his memories. Drawn into a conflict from which not even death will free him, Ruskin must reach Betelgeuse before his enemies sabotage humanity's future among the stars.
Manx Prize
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Price: $2.99 USD. Words: 111,180. Language: English. Published: August 12, 2014. Category: Fiction » Science fiction » Hard sci-fi
In the second half of the twenty-first century orbital debris took its first large-scale human casualties from an orbiting tourist habitat. As a young engineer, Charlotte Fisher determines to win a prize for the first successful de-orbiting of space debris.
The Chaos Chronicles (Books 1-3)
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Series: Chaos Chronicles. Price: $7.99 USD. Words: 317,630. Language: English. Published: December 16, 2010. Category: Fiction » Science fiction » Hard sci-fi
(3.00 from 3 reviews)
An omnibus of three novels: Neptune Crossing, Strange Attractors, and The Infinite Sea. When John Bandicut encounters alien sentience on Triton, his life changes forever—from sacrificing everything to save Earth, to confronting a malicious entity at the edge of the galaxy, to fathoming the abyss of an alien ocean. A major hard-SF adventure from the Nebula-nominated author of Eternity's End.
Paphos: Books 1-5
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Price: $3.96 USD. Words: 115,930. Language: English. Published: August 18, 2014. Category: Fiction » Science fiction » Hard sci-fi
Paphos: The Complete Series Books 1-5. When Austin brought his daughter to the unexplored planet Paphos, it was supposed to be a chance to reconnect with her. But when he and his crew of scientists discover an alien facility, all of that changes. Eager to become rich, the crew ventures in, surrounded by the remnants of an alien massacre. By the time they realize that something is there with them,
Falaha's Journey: A Spacegirl's Account in Three Movements
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Series: OS Universe ยท Falaha's Journey, Complete Trilogy. Price: $6.99 USD. Words: 137,920. Language: English. Published: July 8, 2014. Category: Fiction » Science fiction » Hard sci-fi
(5.00 from 2 reviews)
When a seemingly simple rescue mission turns into a nightmare, Falaha, an ambitious Danna Commander Trainee with a power she can't use properly yet, has her skills put to the ultimate test as her world begins to collapse, throwing her to the center of the conflict that might wipe out her entire race. Will the enemy kill Falaha and her crew before they can find a way to save their people?
Lights in the Deep
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Price: $4.99 USD. Words: 103,900. Language: English. Published: August 26, 2013 by WordFire Press. Category: Fiction » Science fiction » Hard sci-fi
Ten astounding tales by triple award nominee Brad R. Torgersen. Go on fantastic new adventures at the bottom of Earth's oceans and at the edge of the solar system. Meet humans who are utterly alien and aliens who are all too human. Introductions by Stanley Schmidt, Mike Resnick and Allan Cole.
Wayland's Principia
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Price: $4.99 USD. Words: 128,260. Language: English. Published: April 4, 2012. Category: Fiction » Science fiction » Hard sci-fi
The aliens sent word, sent science, sent ways of thinking and doing. But not themselves, not until three generations trained as Guests, as alien-thinking humans. When the aliens arrived, their thinking was more alien than even the Guests had anticipated. Now, with civilization collapsing, Guests join the aliens in their ships to see what can be communicated between species with nothing in common.
AMERICA ONE- NextGen II (Book 6)
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Price: $5.97 USD. Words: 118,760. Language: English. Published: May 23, 2014. Category: Fiction » Science fiction » Hard sci-fi
Ryan Richmond has dreamed about going to space since the age of seven. Reading space updates—and seeing pictures of Neil Armstrong on the lunar surface in National Geographic—was the ignition of this dream. Ryan Richmond goes to space.
Eternity's End
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Price: $5.99 USD. Words: 205,870. Language: English. Published: December 10, 2010. Category: Fiction » Science fiction » Hard sci-fi
(4.50 from 4 reviews)
Star pilot Renwald Legroeder undertakes a search for the legendary ghost ship Impris and her passengers and crew—whose fate is entwined with interstellar piracy, quantum defects in space-time, galactic coverup conspiracies, and deep-cyber romance. Nominated for the Nebula Award—a novel of the Star Rigger Universe, from the author of The Chaos Chronicles.
Teddy Hunter: The Nano-zombie War
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Series: teddyhunter, Book 3. Price: $0.99 USD. Words: 100,120. Language: English. Published: March 14, 2014. Category: Fiction » Adventure » Action
(5.00 from 1 review)
alien AIs trying to take over the earth. Tracker and Mindy try to stop them, but this time they're disguised as teddy-bear robots.
Make No Martyrs: Book 1 of the Eichi Testaments
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Price: $2.99 USD. Words: 118,980. Language: English. Published: August 8, 2014. Category: Fiction » Science fiction » Hard sci-fi
(5.00 from 1 review)
The Church Universal and Missionary-led assassins are the glue that hold the Second Empire together. But things come unstuck on Demeter, a small, metal-poor planet near the center of the galaxy. Rebellion is brewing, threatening the rejuv drugs; the Church has a hidden agenda; the missionary is having second thoughts; a battalion of Imperial Marines stands ready to invade; and there's this girl.
The Visitors
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Price: $2.99 USD. Words: 113,700. Language: English. Published: June 18, 2014. Category: Fiction » Science fiction » Hard sci-fi
This ebook is a serious “First Contact” story. Three visitors arrive on the Earth. They seem both strange and familiar at the same time, and they certainly seem harmless. But layers of deadly intelligence and deceit lie behind their friendly exteriors. This book can be considered like as an updated H.G. Wells “War of the Words” - but presented in modern times and as a psychological thriller.