Past Kindle Book Deals but Still Must Read Books!
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125 past books matching Hard Sci-Fi

All Systems Red
Martha Wells
Mystery · Sci-Fi
An anti-social android with a hacked conscience, a mission gone sideways, and a whole lot of sarcasm—All Systems Red is sci-fi perfection.

All Systems Red
Martha Wells
Mystery · Sci-Fi · Hard Sci-Fi
Our take
An anti-social android with a hacked conscience, a mission gone sideways, and a whole lot of sarcasm—All Systems Red is sci-fi perfection. Winner of the Hugo, Nebula, and Locus Awards with 4.4 stars on Amazon, Martha Wells delivers a sharp, heartfelt adventure. Click to meet your new favorite introvert: Murderbot. Just don’t expect it to talk about its feelings.
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About the book
Murderbot hacked its own system—and its feelings about humanity are... complicated. It just wants to binge-watch soap operas, not save the day.
Meet a security android with a malfunctioning conscience and a love for dramatic media. Assigned to protect a team of researchers on a remote planet, Murderbot would prefer they all stop talking to it.
But when another mission nearby goes suspiciously silent, the scientists face a threat they aren’t equipped to handle—and Murderbot can’t ignore it. Not entirely.
As corporate secrets unravel and danger creeps closer, Murderbot must confront what it means to be autonomous—and what it might be willing to risk for the people it never wanted to care about.
Can a killer machine find a purpose beyond its programming, or is this just another bad episode?
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Tower of Glass
Robert Silverberg
Sci-Fi · Hard Sci-Fi
Power built on artificial lives begins to fracture under the weight of ambition.

Tower of Glass
Robert Silverberg
Sci-Fi · Hard Sci-Fi
Our take
Power built on artificial lives begins to fracture under the weight of ambition. Industrialist Simeon Krug has reshaped society with android labor and now seeks to reach distant aliens by constructing a mile-high tower in the Arctic. As his creations demand equality and his heir resists succession, Tower of Glass explores authority, identity, and rebellion through character-driven science fiction.
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About the book
From the Hugo and Nebula Award–winning author: "High adventure, considerable tension, and—most important—social consciousness" (Harlan Ellison).
Simeon Krug is the king of the universe. A self-made man, he is the Bill Gates of the era, having built a megacommercial empire on the backs of his products: androids, genetically engineered human slaves. Having amassed incredible wealth, his next major goal is to communicate with aliens living in an uninhabitable world, sending a mysterious signal. This requires building a mile high tower in the arctic tundra.
The androids want civil equality with humans, but are divided on the best means to the goal—political agitation or religious devotion to Krug, their creator. And Krug's son, Manuel, is reluctant to step into his role as heir to his father's empire.
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Gateways #5: No Man’s Land (Star Trek: Voyager)
Christie Golden
Sci-Fi · First Contact
A fractured fleet, a desperate captain, and a gateway that could lead home—or to disaster.

Gateways #5: No Man’s Land (Star Trek: Voyager)
Christie Golden
Sci-Fi · First Contact · Hard Sci-Fi
Our take
A fractured fleet, a desperate captain, and a gateway that could lead home—or to disaster. When ancient portals activate across the galaxy, Voyager must navigate chaos and conflict as stranded ships clash in the Delta Quadrant. With no backup and no time to waste, Janeway must unite a fleet—or risk losing everything. A gripping Star Trek: Voyager adventure!
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About the book
A gateway home. A fleet on the brink of chaos. A captain facing impossible odds.
Across the galaxy, ancient interstellar portals have reactivated, flinging lost starships incredible distances with no way back. In the Alpha Quadrant, Starfleet races to contain the crisis—but in the Delta Quadrant, Voyager stands alone.
When Voyager enters a perilous region of space, Captain Janeway and her crew encounter a chaotic fleet of stranded alien vessels, each more hostile and desperate than the last. As tensions rise and distrust spreads, Janeway must hold this fragile alliance together—while resisting the temptation of a newly awakened Gateway that could finally bring Voyager home.
A thrilling Star Trek: Voyager adventure where duty, diplomacy, and destiny collide in deep space.
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The Forge of God
Greg Bear
Dystopian · Sci-Fi
Europa vanishes.

The Forge of God
Greg Bear
Dystopian · Sci-Fi · Hard Sci-Fi · Post-Apocalyptic
Our take
Europa vanishes. Mountains appear overnight. The earth itself begins to tremble. As the signs of impending doom mount, humanity faces an impossible question: fight, flee, or accept the inevitable? A Hugo and Nebula-nominated classic, Greg Bear’s The Forge of God is a breathtaking doomsday thriller blending hard science and raw human emotion.
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About the book
On July 26, Europa vanishes. Not hidden. Not destroyed. Simply gone.
Months later, a new geological feature appears in Death Valley—one that shouldn’t exist. Nearby, a dying visitor brings a warning: Earth’s time is running out. Around the world, impossible phenomena multiply—mountains rise overnight, mysterious lights dance among the asteroids, and the planet itself begins to tremble.
As humanity scrambles for answers, some seek salvation in faith, others in science. A select few whisper of an escape plan, but who will be saved—and who will be left behind to witness the end?
A gripping fusion of hard science and human emotion, Greg Bear’s The Forge of God is a doomsday epic that will leave you breathless. Nominated for the Hugo, Nebula, and Locus Awards.
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Permanence
Karl Schroeder
Sci-Fi · Hard Sci-Fi
A gripping sci-fi epic of survival, intrigue, and hope at the edge of the galaxy, Permanence is a must-read for fans of interstellar adventure.

Permanence
Karl Schroeder
Sci-Fi · Hard Sci-Fi · Space Exploration
Our take
On the run from her ruthless brother, Rue Cassels stumbles upon an abandoned Cycler starship—a discovery that could save her fading civilization. But powerful factions, warring empires, and alien secrets threaten to claim it first. A gripping sci-fi epic of survival, intrigue, and hope at the edge of the galaxy, Permanence is a must-read for fans of interstellar adventure.
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About the book
Rue Cassels never expected to change the fate of an entire civilization—she just wanted to survive.
On the run from her ruthless brother, who has stolen her inheritance and plans to sell her into slavery, Rue flees her home among the dying Cycler Compact. She stakes a claim on what she believes to be a valuable comet, only to discover something even more extraordinary—an abandoned Cycler starship, a relic from a fading way of life.
But Rue’s discovery doesn’t go unnoticed. Greedy factions, warring empires, and powerful forces all want control of the last great hope for the Compact’s survival. With strange alien artifacts and a mysterious religion shaping her path, Rue must navigate perilous intrigue to claim her destiny among the stars.
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Tau Zero
Poul Anderson
Sci-Fi · Hard Sci-Fi
A routine space mission turns into an unthinkable nightmare when the Leonora Christine loses control of its acceleration, forcing its crew toward the speed of light with no…

Tau Zero
Poul Anderson
Sci-Fi · Hard Sci-Fi · Time Travel
Our take
A routine space mission turns into an unthinkable nightmare when the Leonora Christine loses control of its acceleration, forcing its crew toward the speed of light with no way to slow down. With time slipping away faster than they can grasp, survival becomes a race against the laws of physics. A gripping Hugo Award finalist, Tau Zero is the ultimate hard sci-fi classic.
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About the book
A mission of discovery. A catastrophic miscalculation. A journey with no way back.
Fifty crew members aboard the Leonora Christine set out for a distant planet, fully prepared for the effects of time dilation—aging just five years while decades pass on Earth. But when their ship is damaged in an uncharted nebula, their controlled acceleration spirals out of control. Unable to decelerate, they hurtle ever closer to the speed of light.
As time passes faster and faster outside the ship, their journey stretches beyond anything they imagined. With their destination lost and no way to stop, they must confront an unthinkable fate.
A Hugo Award finalist and a landmark in hard science fiction, Tau Zero is a breathtaking exploration of relativity, survival, and the limits of human endurance in the vast emptiness of space.
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The Songs of Distant Earth
Arthur C. Clarke
Sci-Fi · Hard Sci-Fi
A good pick for readers who like classic science fiction about space colonization, interstellar migration, and big questions about humanity's future.

The Songs of Distant Earth
Arthur C. Clarke
Sci-Fi · Hard Sci-Fi
Our take
Centuries after humanity established a colony on the ocean world of Thalassa, its peaceful existence is disrupted by the arrival of the Magellan, carrying the last refugees from a destroyed Earth. The encounter brings change to a society that has developed far from its ancestral home, with a 3.9-star average from more than 17,600 Goodreads ratings. A good pick for readers who like classic science fiction about space colonization, interstellar migration, and big questions about humanity's future.
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About the book
Earth refugees threaten a peaceful space settlement in this influential novel from the Golden Age science fiction author of 2001: A Space Odyssey.
More than two thousand years in the future, a small human colony thrives on the ocean paradise of Thalassa—sent there centuries ago to continue the human race before Earth's destruction.
Thalassa's resources are vast—and the human colony has lived a bucolic life there. But their existence is threatened when the spaceship Magellan arrives on their world—carrying one million refugees from Earth, fleeing the dying planet.
Reputed to be Arthur C. Clarke's favorite novel, The Songs of Distant Earth addresses several fascinating scientific questions unresolved in their time—including the question of why so few neutrinos from the sun have been measured on Earth. In addition, Clarke presents an inventive depiction of the use of vacuum energy to power spacecraft—and the technical logistics of space travel near the speed of light.
"Clarke's simple, musical style never falters in this sobering yet far from bleak commentary on humanity's longing for the stars. Highly recommended." —Library Journal
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Space Station Zion
CJ Williams
Sci-Fi · Hard Sci-Fi
Nobody told Sam Washington that running a space station meant wrangling admirals, tycoons, and a whole lot of chaos.

Space Station Zion
CJ Williams
Sci-Fi · Hard Sci-Fi
Our take
Nobody told Sam Washington that running a space station meant wrangling admirals, tycoons, and a whole lot of chaos. As the new Spaceport Manager of Zion, he’s inherited a mess—and no one is on his side. Can he turn things around before disaster strikes, or is it time to start job hunting? A fast-paced, witty sci-fi adventure you won’t want to miss.
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About the book
Nobody warned Sam Washington that running a space station would be this complicated.
As the new Spaceport Manager of Space Station Zion, he knew he had big shoes to fill—but he didn’t expect that everyone would hate him just because they hated his predecessor. Determined to whip the place into shape, Sam quickly realizes his real job isn’t maintenance—it’s navigating angry admirals, profit-hungry tycoons, and a station on the brink of disaster.
With no allies in sight and the fate of Zion hanging in the balance, Sam must decide: fight against impossible odds, or cut his losses and update his resume.
A fast-paced, sharp-witted sci-fi adventure where bureaucracy meets chaos, perfect for fans of The Expanse and Redshirts.
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Artemis
Andy Weir
Sci-Fi · Cyberpunk
On the moon, survival depends on math, airlocks, and knowing which lines not to cross.

Artemis
Andy Weir
Sci-Fi · Cyberpunk · Hard Sci-Fi
Our take
On the moon, survival depends on math, airlocks, and knowing which lines not to cross. In Artemis, Jazz Bashara chases one lucrative heist that spirals into a struggle for control of humanity’s only lunar colony. As conspiracies tighten and danger closes in, she relies on ingenuity and nerve in a fast-paced science fiction thriller driven by risk, loyalty, and survival in a fragile frontier.
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About the book
NEW YORK TIMES BESTSELLER • From the renowned author of Project Hail Mary and The Martian comes a “propulsive” (NPR) tale of science, suspense, and humor—a heist story set on the moon.
“An action-packed techno-thriller of the first order.”—USA Today
Jasmine Bashara never signed up to be a hero. She just wanted to get rich.
Not crazy, eccentric-billionaire rich, like many of the visitors to her hometown of Artemis, humanity’s first and only lunar colony. Just rich enough to move out of her coffin-sized apartment and eat something better than flavored algae. Rich enough to pay off a debt she’s owed for a long time.
So when a chance at a huge score finally comes her way, Jazz can’t say no. But engineering the perfect crime is just the start of her problems—because her little heist is about to land her in the middle of a conspiracy for control of Artemis herself.
Trapped between competing forces, pursued by a killer and the law alike, she’ll have to hatch a truly spectacular scheme to have a chance at staying alive and saving her city.
Jazz is no hero, but she is a very good criminal.
That’ll have to do.
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The Long Earth
Terry Pratchett & Stephen Baxter
Sci-Fi · Hard Sci-Fi
A New York Times bestseller, The Long Earth imagines countless parallel Earths suddenly made accessible through a simple invention.

The Long Earth
Terry Pratchett & Stephen Baxter
Sci-Fi · Hard Sci-Fi · Speculative Fiction
Our take
A New York Times bestseller, The Long Earth imagines countless parallel Earths suddenly made accessible through a simple invention. Joshua and Lobsang set out across this vast new frontier to learn what lies beyond humanity’s original world, with a 3.8-star average from more than 63,000 Goodreads ratings. Ideal for science fiction readers drawn to parallel worlds, large-scale exploration, and questions about humanity’s future.
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About the book
The first novel in a brilliant collaboration between the visionary Discworld® creator Terry Pratchett and acclaimed science fiction novelist Stephen Baxter, The Long Earth transports readers to an infinity of new worlds—a series of parallel “earths" with doorways leading to adventure, intrigue, excitement, and an escape into the furthest reaches of the imagination. All it takes is a single step. . . .
The possibilities are endless. (Just be careful what you wish for. . . .)
1916: The Western Front. Private Percy Blakeney wakes up. He is lying on fresh spring grass. He can hear birdsong and the wind in the leaves. Where have the mud, blood, and blasted landscape of no-man's-land gone? For that matter, where has Percy gone?
2015: Madison, Wisconsin. Police officer Monica Jansson is exploring the burned-out home of a reclusive—some say mad, others allege dangerous—scientist who seems to have vanished. Sifting through the wreckage, Jansson finds a curious gadget: a box containing some rudimentary wiring, a three-way switch, and . . . a potato. It is the prototype of an invention that will change the way humankind views the world forever.
The Long Earth is an adventure of the highest order and willcaptivate science fiction fans of all stripes, readers of Kurt Vonnegut, Douglas Adams, and Carl Hiaasen, and anyone who enjoyed the Terry Pratchett/Neil Gaiman collaboration Good Omens.
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Losing Mars
Peter Cawdron
Sci-Fi · First Contact
A Chinese spacecraft is stranded near Phobos, its crew’s only hope for survival resting with an American base on Mars.

Losing Mars
Peter Cawdron
Sci-Fi · First Contact · Hard Sci-Fi
Our take
A Chinese spacecraft is stranded near Phobos, its crew’s only hope for survival resting with an American base on Mars. But rescuing them could cost the Americans their own foothold on the Red Planet. Will they risk everything or leave them to die? A gripping stand-alone sci-fi thriller from the First Contact series.
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About the book
A disaster in orbit. A choice between survival and humanity.
A Chinese spacecraft is crippled near Phobos, stranded over a hundred million miles from Earth. Their only hope? The American base on Mars, perched on the edge of the Vallis Marineris. But the Americans face an impossible decision: attempt a risky rescue that could cost them their foothold on the Red Planet, or abandon their fellow explorers to die.
As tensions rise and political forces on Earth weigh in, the fate of the stranded crew hangs in the balance. In the vast, unforgiving expanse of space, survival isn’t guaranteed—and neither is humanity’s moral compass.
A gripping entry in the First Contact series, this stand-alone novel explores the limits of compassion, the cost of exploration, and what happens when survival comes at an impossible price.
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Eleven Days
D. Ward Cornell
Sci-Fi · First Contact
Eleven Days is a fast-paced, mind-bending first-contact thriller perfect for fans of The Three-Body Problem.

Eleven Days
D. Ward Cornell
Sci-Fi · First Contact · Hard Sci-Fi
Our take
A mysterious object appears near the Sun during a solar eclipse. Alien artifacts land in world capitals. Society begins to unravel. Former NASA scientist Jasmine Evans is recalled to investigate, but what she discovers changes everything. Eleven Days is a fast-paced, mind-bending first-contact thriller perfect for fans of The Three-Body Problem.
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About the book
A total solar eclipse. A mysterious object cresting the Sun. Cryptic radio signals jamming broadcasts worldwide.
Former NASA scientist Jasmine Evans is the first to detect the anomaly, the first to sound the alarm. Then, alien artifacts appear in the capitals of the world’s greatest powers, triggering global panic. As fear paralyzes society and governments scramble for answers, Jasmine is recalled to investigate. What her team discovers changes everything.
Because nothing is what it seems.
As the clock ticks down, the fate of humanity will be decided in just Eleven Days.
Fast-paced and pulse-pounding, this sci-fi thriller hurtles toward an earth-shattering revelation. For fans of The Three-Body Problem and Arrival, this is an unmissable first-contact thriller.
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