Fiction » Science fiction » Hard sci-fi

Crucible of Time: Part Two of the "Out of Time" Sequence
Series: The Chaos Chronicles. Price: $6.99 USD. Words: 130,350. Language: English. Published: September 10, 2019. Categories: Fiction » Science fiction » Space opera, Fiction » Science fiction » Hard sci-fi
Picks up the story from The Reefs of Time. Bandicut and his company must find a way to stop the timestream along which the malicious Mindaru AI are swarming out of the deep past to threaten not just Karellia and Uduon, but all of the galaxy. However, there is more to the Mindaru than meets the eye. Conclusion of the unmissable two-part “Out of Time” sequence, and Book 6 of The Chaos Chronicles!
The Reefs of Time: Part One of the "Out of Time" Sequence
Series: The Chaos Chronicles, Book 5. Price: $6.99 USD. Words: 146,160. Language: English. Published: July 23, 2019. Categories: Fiction » Science fiction » Space opera, Fiction » Science fiction » Hard sci-fi
The starstream is beautiful. But beauty turns deadly when an ancient AI bent on destruction uses it to travel uptime, to humanity’s future. The Chaos Chronicles returns at last with its growing cast of characters in The Reefs of Time, part one of a two-part adventure. Concluded in Crucible of Time—available now from Nebula-nominated Jeffrey A. Carver!
Spinward Fringe Broadcast 6.5: The Expendable Few
Series: Spinward Fringe, Broadcast 6.5. Price: $2.99 $1.50 USD. (50% off!) Words: 76,530. Language: English. Published: February 28, 2012. Categories: Fiction » Science fiction » Space opera, Fiction » Science fiction » Hard sci-fi
(4.26 from 43 reviews)
Clark Patterson and other officers in the Freeground Military are ejected from regular service when their actions and lifestyles are met by disapproval by a new oppressive government. They find themselves reassigned to a unit sent on some of the most dangerous missions ever undertaken by Freeground Nation soldiers. Completing these missions is their only way to win their freedom.
Instantiation
Price: $2.99 USD. Words: 135,990. Language: English. Published: January 23, 2020. Categories: Fiction » Science fiction » Short stories, Fiction » Science fiction » Hard sci-fi
“Instantiation” is a collection of eleven science fiction stories by Hugo Award winning author Greg Egan.
Star Crusader: Tides of War
Series: Star Crusader. Price: $4.99 $3.74 USD. (25% off!) Words: 71,990. Language: English. Published: July 20, 2019 by Swordworks & Miro Books. Categories: Fiction » Science fiction » Military, Fiction » Science fiction » Hard sci-fi
The invasion of the Centauri Rim has begun, and Knighthawk Squadron leads the way. They fight in both the real and virtual worlds, where they use their unique skills to throw the enemy off balance. This last battle will be fought against the mighty stronghold of the separatists, an impregnable fortress hidden inside the Rim known simply as The Rock. And in their path lies a vast array of warships.
Strange Attractors
Series: The Chaos Chronicles, Book 2. Price: $4.99 USD. Words: 101,910. Language: English. Published: September 18, 2010. Categories: Fiction » Science fiction » Hard sci-fi, Fiction » Science fiction » Space opera
(5.00 from 1 review)
For John Bandicut, Earth is but a memory. Stranded outside the galaxy in a vast structure peopled by a thousand races, Bandicut finds unexpected friends—only to be caught up in a cascade of irresistible forces. Confronting an entity known as the boojum, Bandicut discovers that the Shipworld itself is in peril, and only he can intervene. Book 2 of The Chaos Chronicles—with an all-new Afterword.
The Chaos Chronicles (Books 1-3)
Series: The Chaos Chronicles. Price: $8.99 USD. Words: 321,780. Language: English. Published: December 16, 2010. Categories: Fiction » Science fiction » Hard sci-fi, Fiction » Science fiction » Space opera
(3.50 from 4 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.
The Infinite Sea
Series: The Chaos Chronicles, Book 3. Price: $4.99 USD. Words: 124,100. Language: English. Published: October 16, 2010. Categories: Fiction » Science fiction » Hard sci-fi, Fiction » Science fiction » Space opera
Flung to an alien ocean world, John Bandicut and his companions find themselves plunged into the deepsea realm of the Neri. What will they find in the Neri's failing undersea city, or in the terrifying object of the deep abyss? Book 3 of The Chaos Chronicles continues the hard-SF saga inspired by chaos theory—with an all-new Afterword by the Nebula-nominated author of Eternity's End.
Star Crusades: Valentine
Series: Star Crusades: Valentine. Price: $2.99 $2.24 USD. (25% off!) Words: 72,000. Language: English. Published: August 30, 2019 by Swordworks & Miro Books. Categories: Fiction » Science fiction » Military, Fiction » Science fiction » Hard sci-fi
Valentine never thought death would be so difficult. Tough, a crack shot and popular with her unit. She’s a young woman with a bright future in the Corps. But everything changed the day her unit boarded the dreaded ‘Burijas’, a Leviathan Class Battleship and flagship of the invading Star Empire. The assault is a bloodbath, but little does she know it will be her last action.
Rita Longknife: Enemy Unknown
Series: Rita Longknife. Price: $3.99 USD. Words: 55,000. Language: English. Published: May 21, 2020. Categories: Fiction » Science fiction » Military, Fiction » Science fiction » Hard sci-fi
This series is a spin off from the Jump Universe series where we see Rita in To Do or Die.
Permutation City
Price: $2.99 USD. Words: 108,570. Language: English. Published: February 8, 2017. Categories: Fiction » Science fiction » Hard sci-fi
Paul Durham keeps making Copies of himself: software simulations of his own brain and body which can be run in virtual reality. Maria Deluca is addicted to the Autoverse: a virtual world that follows a simple set of rules as its “laws of physics”. Paul makes Maria a very strange offer: design a seed for an entire virtual biosphere — a feat far beyond the capacity of all the world’s computers.
The Lattice Trilogy
Price: $4.99 $2.50 USD. (50% off!) Words: 251,050. Language: English. Published: February 6, 2020 by Erik. Categories: Fiction » Science fiction » Hard sci-fi, Fiction » Science fiction » Adventure
In the future, privacy is a thing of the past. If you like high-stakes action, thought-provoking dystopian themes, and gripping twists, then you’ll love Erik Hanberg’s page-turner trilogy that Kirkus reviews raves is "Staggeringly smart… Hanberg's expertly honed storytelling is sleek and fast… [an] entertaining tale."
Diaspora
Price: $2.99 USD. Words: 91,770. Language: English. Published: February 8, 2017. Categories: Fiction » Science fiction » Hard sci-fi
In 2975, the orphan Yatima is grown from a randomly mutated digital mind seed in the conceptory of Konishi polis.
Heart of the Comet
Price: $6.99 USD. Words: 173,260. Language: English. Published: June 5, 2012. Categories: Fiction » Science fiction » Hard sci-fi, Fiction » Science fiction » Space opera
By DAVID BRIN and GREGORY BENFORD -- David Brin and Gregory Benford come together again to issue a new edition of their bold collaboration about our near human future in space, planting our boots . . . and staking our destiny . . . on becoming the People of the Comet. Prescient and scientifically accurate, Heart of the Comet is known as one of the great "hard sf" novels of the 1980s.
Time Travel Adventures Of The 1800 Club Book 18
Price: $2.99 USD. Words: 29,150. Language: English. Published: January 13, 2020. Categories: Fiction » Science fiction » Hard sci-fi
The Time Travel Adventures Of The 1800 Club is a 21 st Century haven for people seeking to escape New York City’s frantic pace. Dressed in clothes their ancestors might have worn during the 1800s, members enjoy foods of the period and read periodicals featuring news of a particular date in the 1800s. However, the 1800 Club also has an astounding secret . . . Time Travel.
The Turing Exception
Series: Singularity. Price: $4.99 USD. Words: 78,650. Language: English. Published: March 10, 2015. Categories: Fiction » Science fiction » Cyberpunk, Fiction » Science fiction » Hard sci-fi
In the 2043, humans and AI coexist in a precarious balance of power. But in the grim aftermath of a runaway nanotech attack, a powerful underground collective known as XOR concludes AI can no longer coexist with humanity. Catherine Matthews and her allies, including an ancient AI long believed dead, must find a solution before XOR's planned extermination war.
Kill Switch
Series: Kill Chain. Price: $4.99 USD. Words: 126,480. Language: English. Published: October 21, 2018. Categories: Fiction » Science fiction » Hard sci-fi, Fiction » Thriller & suspense » General
(5.00 from 1 review)
Igloo and Angie are the founders of Tapestry, a new social network. Tapestry’s privacy and security is so effective it impedes the government’s ability to monitor communications. Fearing Tapestry's effect on America’s surveillance abilities, the government will stop Angie and Igloo by any means possible. Igloo and Angie must risk everything in the ultimate battle for control of the Internet.
Schild’s Ladder
Price: $2.99 USD. Words: 94,910. Language: English. Published: February 8, 2017. Categories: Fiction » Science fiction » Hard sci-fi
Cass has stumbled on a set of quantum graphs that might comprise the fundamental particles of an entirely different kind of physics, and she has travelled three hundred and seventy light years to Mimosa Station, a remote experimental facility, in the hope of bringing this tantalising alternative to life. But her experiment creates a new kind of vacuum, expanding at half the speed of light.
Fall of Icarus (Brink of Distinction book #2)
Series: Brink of Distinction, Book 2. Price: $2.99 USD. Words: 126,300. Language: English. Published: September 6, 2013 by Clean Teen Publishing, Inc.. Categories: Fiction » Science fiction » Military, Fiction » Science fiction » Hard sci-fi
The Terran Empire has broken the Taisa Accord and invaded Alliance space in this exciting second novel in the Brink of Distinction series. Survivors of the Empire's first assault, Yen Xiao and Adam Decker swore vengeance against the Terrans. Joining forces with the enigmatic Keryn Riddell, the three warriors must find a way to destroy the Terran fleet.
Eternity's End
Series: Star Rigger Universe. Price: $5.99 USD. Words: 212,280. Language: English. Published: December 10, 2010. Categories: Fiction » Science fiction » Hard sci-fi, Fiction » Science fiction » Space opera
(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.

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