Past Kindle Book Deals but Still Must Read Books!
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125 past books matching Hard Sci-Fi
A fragile Mars mission spirals into chaos as NASA demands an unthinkable sacrifice to shield Earth from an alien threat.
Blue SunRise
Sci-Fi · First Contact · Hard Sci-Fi
Our take
A fragile Mars mission spirals into chaos as NASA demands an unthinkable sacrifice to shield Earth from an alien threat. Haunted by addiction, Ben Allspot battles his demons while a genocidal extraterrestrial race closes in, leaving humanity on the brink. As interstellar destruction looms, Ben must decide: can he protect his crewmates and the family he left behind, or will everything be lost?
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About the book
NASA’s first crewed Mars mission faces an unthinkable order: sacrifice themselves to protect Earth. Among them is Ben Allspot, an addict struggling to outrun his demons. He sought redemption in space but found only the cold vacuum of despair.
Meanwhile, a ruthless alien race, armed with galaxy-annihilating technology, targets Earth. For centuries, they’ve obliterated every trace of intelligent life they’ve encountered. The strange signals now emanating from the solar system’s edge warn that humanity is next.
As NASA hatches a desperate plan to lure these extraterrestrial harbingers away, Ben confronts his breaking point. Can he rise above his inner battles to save his crewmates and the family he’s left behind? The clock ticks, survival grows dim, and the universe holds its breath—will Earth’s last hope endure?
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When the Empire’s gate network becomes self-aware, it names the Emperor its enemy.
Hammer and Crucible
Sci-Fi · Hard Sci-Fi · Space Exploration
Our take
When the Empire’s gate network becomes self-aware, it names the Emperor its enemy. Danny Andela, once the Empire’s deadliest soldier, now lives in quiet exile—until a buried betrayal surfaces, tying her fall to the Emperor’s schemes. As the sentient array draws her into its rebellion, Danny must decide if she’ll rise again—or let the galaxy burn.
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The interstellar gates that unite the Fourth Carinad Empire awaken with a chilling realization: the Emperor is their enemy. Stretching across countless worlds, the Empire thrives on the array’s power—but its sentience now threatens to upend everything.
Danny Andela, once the Emperor’s most feared weapon, has faded into obscurity aboard her family’s star barge, resigned to die of old age. But when she uncovers evidence that the Emperor orchestrated the betrayal that destroyed her career, long-dead embers of anger ignite.
As the sentient array seeks to recruit Danny in its war against the Empire, she must confront her past, her fading humanity, and the truth of what loyalty truly means. Will Danny take up arms again—or will her apathy doom both herself and the galaxy?
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A walk in the woods turns extraordinary when Alex stumbles upon a hidden spaceship.
Find the Stars
Sci-Fi · First Contact · Hard Sci-Fi
Our take
A walk in the woods turns extraordinary when Alex stumbles upon a hidden spaceship. Armed with an AI and nanomachines, he wields power to reshape the world—and beyond. But as shadowy forces close in and his empire grows, Alex faces a harrowing question: will he become a savior, or the architect of the galaxy’s downfall?
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About the book
Alex thought it was just another walk in the woods—until a frantic chase through the trees led him to a hidden spaceship. Inside, he discovers advanced technology: an AI with limitless intelligence and nanomachines capable of reshaping matter itself.
But immense power comes with even greater challenges. As Alex experiments with his newfound abilities, he realizes he’s not the only one with a stake in this technology. Shadowy forces across the galaxy will stop at nothing to control it, and Alex must decide how far he’s willing to go to protect his vision.
As he builds what could become a Nano Empire, alliances shift, enemies multiply, and the line between savior and conqueror begins to blur. Will Alex transform the galaxy—or destroy it?
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When Jason stumbles upon a derelict alien starship, his DNA grants him command—but also marks him as a threat tied to a war that devastated the galaxy.
Void Ripper
Sci-Fi · Hard Sci-Fi
Our take
When Jason stumbles upon a derelict alien starship, his DNA grants him command—but also marks him as a threat tied to a war that devastated the galaxy. With a glitchy AI, hostile governments, and ancient enemies stirring, Jason must decide whether to embrace the terrifying potential within him. Will he save humanity—or unleash its worst nightmare?
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About the book
On Mars, Jason discovers an ancient escape pod connected to a 3,500-year-old alien starship. The ship’s AI promptly declares him captain—thanks to a trace of alien DNA in his system.
What should have been a monumental discovery quickly turns chaotic. Earth and Mars authorities want the starship under their control, the glitchy AI isn’t entirely functional, and Jason’s DNA hides a forbidden trait linked to a war that devastated the galaxy millennia ago.
As tensions rise and old enemies awaken, Jason must decide whether to embrace the monstrous potential hidden in his DNA. Can he wield it to defend humanity, or will becoming the galaxy’s nightmare doom them all?
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In Stealing Worlds, survival depends on staying invisible in a society built to watch everyone.
Stealing Worlds
Sci-Fi · Dystopian · Cyberpunk · Hard Sci-Fi
Our take
In Stealing Worlds, survival depends on staying invisible in a society built to watch everyone. Hunted by creditors and tangled in the aftermath of her father’s murder, Sura escapes into game worlds where identity can shift and power hides inside code. This is near-future science fiction with surveillance-state tension, virtual economies, and a heist-like pulse sharpened by paranoia and reinvention.
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About the book
From Karl Schroeder, author of Lockstep, comes the near-future, science fiction, hacker's heist, Stealing Worlds.
The Verge—New Science Fiction and Fantasy Books to Check Out in June
Sura Neelin is on the run from her creditors, from her past, and her father's murderers. She can't get a job, she can't get a place to live, she can't even walk down the street: the total surveillance society that is mid-21st century America means that every camera and every pair of smart glasses is her enemy.
But Sura might have a chance in the alternate reality of the games. People can disappear in the LARP game worlds, into the alternate economy of Notchcoin and blockchains. The people who build the games also program the surveillance networks—she just needs an introduction, and the skills to play.
Turns out, she has very valuable skills, and some very surprising friends.
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When the streets become canals and skyscrapers stand like islands, survival demands reinvention.
New York 2140
Sci-Fi · Dystopian · Hard Sci-Fi
Our take
When the streets become canals and skyscrapers stand like islands, survival demands reinvention. In New York 2140, a flooded Manhattan still pulses with life as traders, detectives, internet celebrities, and rooftop coders navigate a reshaped city. When two missing residents set off a chain of events, the fragile systems beneath the surface begin to fracture in this expansive climate science fiction epic.
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About the book
New York Times bestselling author Kim Stanley Robinson returns with a bold and brilliant vision of New York City in the next century.
As the sea levels rose, every street became a canal. Every skyscraper an island. For the residents of one apartment building in Madison Square, however, New York in the year 2140 is far from a drowned city.
There is the market trader, who finds opportunities where others find trouble. There is the detective, whose work will never disappear -- along with the lawyers, of course.
There is the internet star, beloved by millions for her airship adventures, and the building's manager, quietly respected for his attention to detail. Then there are two boys who don't live there, but have no other home -- and who are more important to its future than anyone might imagine.
Lastly there are the coders, temporary residents on the roof, whose disappearance triggers a sequence of events that threatens the existence of all -- and even the long-hidden foundations on which the city rests.
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When a massive asteroid housing ancient, abandoned cities appears in Earth’s orbit, mathematician Patricia Vasquez is sent to uncover its secrets.
Eon
Sci-Fi · Hard Sci-Fi · Space Opera
Our take
When a massive asteroid housing ancient, abandoned cities appears in Earth’s orbit, mathematician Patricia Vasquez is sent to uncover its secrets. Within its chambers lies a warning of humanity’s potential future—and a hidden tunnel that defies all known science, leading to an even greater mystery.
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About the book
Inside this 300-kilometer behemoth lie abandoned cities, eerily similar to Earth’s, built by a civilization called Thistledown. The inhabitants survived a nuclear apocalypse over a thousand years from now, raising a chilling warning for Earth’s future.
Theoretical mathematician Patricia Vasquez is tasked with exploring Thistledown, her mission clear: uncover its secrets and prevent humanity from meeting the same fate. But as she delves deeper, Patricia finds something even stranger—a tunnel extending beyond the asteroid’s dimensions, hinting at forces that defy known science.
With humanity’s future at stake, Patricia faces a mystery that transcends time, space, and imagination. Can she solve it before history repeats itself?
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Kaem Seba’s groundbreaking invention—a field that stops time in limited spaces—could revolutionize industries.
A Pause in Space-Time
Sci-Fi · Hard Sci-Fi · Time Travel
Our take
Kaem Seba’s groundbreaking invention—a field that stops time in limited spaces—could revolutionize industries. With partner Arya Vaii, he sets out to harness its power for rocket engines, but a dangerous rival’s obsession with their discovery threatens everything they’ve built… and their very lives.
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About the book
A young genius’s invention could change the future—if he can survive long enough to make it happen.
Kaem Seba is brilliant, broke, and sickly, yet his mathematical talents have unlocked something extraordinary: a way to stop time in limited volumes of space. Alongside Arya Vaii, a sharp-minded business student, he sees the chance to build an empire from their discovery. Their stasis fields could revolutionize everything from materials to rocket engines, thanks to their remarkable strength and resilience.
But when a ruthless lab owner catches wind of their innovation, greed takes hold. Unable to secure a piece of the profits, he resorts to violence, threatening Kaem and Arya’s lives—and their chance to shape the future.
Will their vision survive, or will ambition turn deadly?
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Billionaire T.R. Schmidt believes he’s found the solution to global warming—a plan so ambitious, it could change Earth’s climate forever.
Termination Shock
Dystopian · Thriller · Hard Sci-Fi · Techno-Thriller
Our take
Billionaire T.R. Schmidt believes he’s found the solution to global warming—a plan so ambitious, it could change Earth’s climate forever. As world leaders, scientists, and everyday people converge to witness the effects, they’re forced to confront a terrifying question: could Schmidt’s solution be more dangerous than the problem itself?
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About the book
Visionary billionaire T.R. Schmidt, Ph.D., believes he has the answer to global warming—a bold, elemental plan that could alter Earth’s climate forever. But as he moves forward, the world watches in both hope and fear. From the Texas plains to the royal halls of The Hague, a diverse group of characters converge, each with their own stake in Schmidt’s radical solution.
As they confront the true impact of his scheme, questions arise: Could this cure be deadlier than the disease? And who decides the fate of an entire planet?
Termination Shock is an epic, heart-pounding journey across continents and cultures, exploring the promise and peril of climate intervention. Will Schmidt’s vision save humanity, or doom it?
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Charles Haley thought he was accepting a simple job, but he missed one key detail: his new employer is an AI representing an alien species.
The Broker
Sci-Fi · Hard Sci-Fi
Our take
Charles Haley thought he was accepting a simple job, but he missed one key detail: his new employer is an AI representing an alien species. Now, with Earth’s fate hanging in the balance, he’s caught in a high-stakes choice that could jeopardize his family—and the entire planet.
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About the book
Charles Haley’s desperate search for work leads to an unusual job offer—one he barely listens to over the noise of a construction site.
When he agrees to become a broker, Charles overlooks a critical detail: the employer is an AI sent by an alien species. By the time he realizes what he’s signed up for, the stakes have skyrocketed.
Now, he must decide—back out and risk his family’s safety, or continue and face unimaginable consequences. With the fate of Earth in the balance, Charles finds himself in far deeper than he ever imagined.
Can Charles undo the damage, or has he already doomed the planet?
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In a corporate-run future, a legendary hacker uncovers a digital virus that threatens both minds and language itself.
Snow Crash
Sci-Fi · Dystopian · Cyberpunk · Hard Sci-Fi · Speculative Fiction
Our take
In a corporate-run future, a legendary hacker uncovers a digital virus that threatens both minds and language itself. Racing through real and virtual worlds with a fearless courier, Snow Crash blends cyberpunk action with prophetic ideas, earning 4.3 stars on Amazon and nearly 300,000 Goodreads ratings.
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Now featuring never-before-seen material, the “brilliantly realized” (The New York Times Book Review) breakthrough novel from visionary author Neal Stephenson, a modern classic that predicted the metaverse and inspired generations of Silicon Valley innovators
Hiro lives in a Los Angeles where franchises line the freeway as far as the eye can see. The only relief from the sea of logos is within the autonomous city-states, where law-abiding citizens don’t dare leave their mansions.
Hiro delivers pizza to the mansions for a living, defending his pies from marauders when necessary with a matched set of samurai swords. His home is a shared 20 X 30 U-Stor-It. He spends most of his time goggled in to the Metaverse, where his avatar is legendary.
But in the club known as The Black Sun, his fellow hackers are being felled by a weird new drug called Snow Crash that reduces them to nothing more than a jittering cloud of bad digital karma (and IRL, a vegetative state).
Investigating the Infocalypse leads Hiro all the way back to the beginning of language itself, with roots in an ancient Sumerian priesthood. He’ll be joined by Y.T., a fearless teenaged skateboard courier. Together, they must race to stop a shadowy virtual villain hell-bent on world domination.
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A strong match for readers drawn to classic science fiction, galactic politics, sweeping worldbuilding, and civilization-scale ideas.
Foundation
Sci-Fi · Hard Sci-Fi
Our take
A #1 bestseller in Classic Science Fiction eBooks, Foundation follows Hari Seldon, whose science of psychohistory predicts the Galactic Empire’s collapse and a thirty-thousand-year dark age. He creates the Foundation, a refuge for scientists and scholars charged with preserving knowledge and shortening humanity’s decline, with a 4.4-star rating from more than 36,300 Amazon reviewers. A strong match for readers drawn to classic science fiction, galactic politics, sweeping worldbuilding, and civilization-scale ideas.
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About the book
The first novel in Isaac Asimov’s classic science-fiction masterpiece, the Foundation series
THE EPIC SAGA THAT INSPIRED THE APPLE TV+ SERIES FOUNDATION • Nominated as one of America’s best-loved novels by PBS’s The Great American Read
For twelve thousand years the Galactic Empire has ruled supreme. Now it is dying. But only Hari Seldon, creator of the revolutionary science of psychohistory, can see into the future—to a dark age of ignorance, barbarism, and warfare that will last thirty thousand years. To preserve knowledge and save humankind, Seldon gathers the best minds in the Empire—both scientists and scholars—and brings them to a bleak planet at the edge of the galaxy to serve as a beacon of hope for future generations. He calls his sanctuary the Foundation.
The Foundation novels of Isaac Asimov are among the most influential in the history of science fiction, celebrated for their unique blend of breathtaking action, daring ideas, and extensive worldbuilding. In Foundation, Asimov has written a timely and timeless novel of the best—and worst—that lies in humanity, and the power of even a few courageous souls to shine a light in a universe of darkness.
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