Past Kindle Book Deals but Still Must Read Books!
Looking for must read books you missed the first time around? You’re in the right place. This is where all of our past Kindle book deals live—the ones good enough to click, even if the discount’s gone. Every book here was hand-picked by our team, featured in a daily deal, and still earns a spot on your TBR.
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These Books Earned Our Seal of Approval—Snag Them Before They Vanish (Again)
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959 past books matching Sci-Fi
In a waterlogged dystopia, Bird embarks on a harrowing voyage to find her brother.
Salt
Dystopian · Sci-Fi
Our take
In a waterlogged dystopia, Bird embarks on a harrowing voyage to find her brother. With storms, pirates, and conspiracies at every turn, she and her guarded mentor, Sargo, must face the ocean’s fury—and their own dark truths. Survival isn’t guaranteed, but neither are the answers they seek.
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About the book
In a waterlogged dystopia, survival is everything—but for Bird, it’s never come easy.
Struggling to fit in at her sailing academy, Bird's life changes when a message arrives from the brother she thought was dead. He has the answers to the questions she’s carried her whole life. But reaching him means crossing treacherous seas rife with deadly storms, ruthless pirates, and political conspiracies.
Bartering passage from her brash yet haunted mentor, Sargo, Bird sets sail. As they face life-threatening dangers together, their clashing personalities ignite unexpected emotions. The journey tests their limits, uncovering truths that could either save or destroy them.
In a world of endless waves and hidden secrets, can Bird and Sargo overcome the ocean’s wrath—and their own demons—before it’s too late?
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Mark’s dull IT job takes a cosmic twist when Alan, a mysterious alien, whisks him into a galactic war.
Unwilling From Earth
Sci-Fi · First Contact · Space Exploration
Our take
Mark’s dull IT job takes a cosmic twist when Alan, a mysterious alien, whisks him into a galactic war. From timid techie to unlikely hero, Mark must navigate bizarre aliens, deadly battles, and surprising humor in a fight to save the universe. Will he rise to the challenge—or be lost in the chaos of the stars?
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About the book
Mark, a bored IT technician stuck in a monotonous job, never expected his life to change—until he meets Alan, a strange, otherworldly being. One plea for escape launches Mark into an interstellar adventure beyond his wildest imagination.
From office drudgery to a galactic battlefield, Mark is swept into a war where outrageous aliens, deadly battles, and galaxy-sized stakes test his courage at every turn. As he evolves from a timid tech to an unexpected hero, Mark discovers his inner strength and learns what it truly means to lead.
Packed with unexpected humor, thrilling twists, and dazzling worldbuilding, this sci-fi epic is perfect for fans of The Hitchhiker's Guide to the Galaxy. Can Mark save the universe—and himself—in the process?
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An alien artifact grants Jael Ked’Korhva incredible power—but paints a target on his back.
Stellar Heir
Sci-Fi · Teen + Young Adult · Space Opera
Our take
An alien artifact grants Jael Ked’Korhva incredible power—but paints a target on his back. Hunted across the stars, guided by visions of a lost ally, Jael uncovers a galaxy-spanning conflict on the edge of war. With unimaginable power at stake, he must decide: protect the artifact at all costs or risk everything to stop catastrophe.
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About the book
Jael Ked’Korhva never planned to become the galaxy’s most wanted. But when an alien artifact fuses to his wrist, granting him extraordinary abilities—enhanced senses, rapid regeneration, and near-superhuman reflexes—he’s thrust into a deadly chase.
Once a warrior monk, now a scavenger, Jael knows the artifact is both a gift and a grave responsibility. Forces from across the stars hunt him, each determined to claim its unimaginable power. Guided by cryptic visions of an ancient ally and a shadowy foe, Jael discovers the artifact’s true potential: it could tip the scales of a brewing galactic war.
As enemies close in, Jael must decide whether to wield his newfound power or sacrifice everything to keep it from falling into the wrong hands.
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After the Mod War, Orinthia’s life falls apart when she loses her job as a Marauder Hunter.
The Fera
Sci-Fi · Cyberpunk
Our take
After the Mod War, Orinthia’s life falls apart when she loses her job as a Marauder Hunter. Joining the infamous space pirate crew of the Fera, she hides her past while navigating fragile alliances. But as secrets unravel, Orinthia must trust her crew or risk being consumed by the very past she’s trying to outrun.
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About the book
The Mod War is over, but for cybernetically enhanced veterans, survival is just beginning. Abandoned by the people they fought to protect, many turn to galactic piracy to stay alive.
As a former Marauder Hunter, Orinthia once brought these outlaws to justice. But when she loses her job, her life spirals into chaos. With nothing left to lose, she joins the infamous crew of the Fera, determined to keep her past buried. As secrets from her former life threaten to resurface, Orinthia must navigate the treacherous line between loyalty and survival.
But with dangerous truths unraveling and her cybernetic enhancements pushed to their limits, Orinthia’s only chance lies in trusting a crew she barely knows. Can she escape her past, or will it destroy them all?
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Good for readers who like EMP survival thrillers, family stakes, and post-collapse danger.
Darkness Begins
Sci-Fi · Thriller · Post-Apocalyptic
Our take
After an EMP destroys the nation’s power grid, agriculture student Madison and librarian Tracy face a collapsing society with no communication and no word from the government. Darkness Begins follows the Sloane family and their friends as they fight to survive and reunite in Sacramento, with a 4.3-star rating from more than 2,400 Amazon reviewers. Good for readers who like EMP survival thrillers, family stakes, and post-collapse danger.
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About the book
If the power grid fails, how far will you go to survive?
Madison spends her days tending plants as an agriculture student at the University of California, Davis. She plans to graduate and put those skills to work only a few hours from home in the Central Valley. The sun has always been her friend, until now.
When catastrophe strikes, how prepared will you be?
Tracy starts her morning like any other, kissing her husband Walter goodbye before heading off to work at the local public library. She never expects it to end fleeing for her life in a Suburban full of food and water. Tackling life’s daily struggles is one thing, preparing to survive when it all crashes down is another.
The end of the world brings out the best and worst in all of us.
With no communication and no word from the government, the Sloanes find themselves grappling with the end of the modern world all on their own. Will Madison and her friends have what it takes to make it back to Sacramento and her family? Can Tracy fend off looters and thieves and help her friends and neighbors survive?
The EMP is only the beginning.
Darkness Begins is book one in After the EMP, a post-apocalyptic thriller series following the Sloane family and their friends as they attempt to survive after a geomagnetic storm destroys the nation’s power grid.
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Born a Drone with no memory or status, Benning Kidd becomes the first of her kind to rise within an immortal future society.
Drone Ensign
Sci-Fi · Hard Sci-Fi · Space Opera
Our take
Born a Drone with no memory or status, Benning Kidd becomes the first of her kind to rise within an immortal future society. As enemies move to erase her, she fights for survival through battle, ambition, and wit. A sharp edged science fiction debut about power, class, and self determination in a galaxy that fears change.
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About the book
Raised from the least of humanity to its elite, Benning Kidd must carve out a place for herself in humanity's distant future - no matter what stands in her way.
Humanity has moved far beyond the cradle of Earth, into the stars themselves. In the Collective, energy is limitless, travel and communication are nearly instantaneous, and every person's basic needs are fully met. Citizens are free to choose the lives they wish to lead, and the omnipresent Overnet tracks their strength, power, and accomplishments. Even death has been vanquished, and Citizens are effectively immortal, reborn anew after each death.
Benning Kidd is a Drone, the lowest class of humanity. She exists without memory, purpose, or more than the most basic awareness of herself and the world around her. An accident changes all that, and Benning becomes a Citizen of the Collective, the first Drone to do so in history. She is uniquely talented and unscrupulously driven, choosing a path of battle and glory that will take her from arena to arena and out among the stars themselves.
Benning's existence, though, is a threat to those in power, and forces move against her from the moment she steps out of the respawn chamber. As a starship officer, she's sworn to serve her new captain, but he might not be serving her in turn. She faces threats from without and within, and the only person she can trust is her personal AI, who guides her through the Collective.
Her only chance of survival is to be stronger, smarter, and more cunning than those who stand in her way. Her path is unique, and only she can forge it. She is the Drone Ensign, warrior and starship officer, and none will stop her from fulfilling her desires!
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Two teenagers plot a daring escape from a dystopian state that demands total loyalty, only to discover one of them carries a power the government will kill to…
Founder’s Mercy
LGBTQIA+ · Sci-Fi · Teen + Young Adult
Our take
Two teenagers plot a daring escape from a dystopian state that demands total loyalty, only to discover one of them carries a power the government will kill to control. As the Bolvar Union closes in, friendship and survival are put to the ultimate test. Rated 4.5 stars on Amazon and praised for its tight plotting and heart.
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About the book
"Tightly-plotted with nuanced characters that are easy to root for."
–Ryan Douglass, New York Times bestselling author of The Taking of Jake Livingston
The Bolvar Union provides everything a good citizen needs, only asking one thing in return: total devotion to the State. Teenage best friends Adan Testa and Bo Shen have other ideas. They plan an unlikely heist to earn their way over the wall, escaping Bolvar before serving their mandatory five years in the Bolvar Union Defense Force. But Adan doesn’t know he possesses a secret talent that no one has seen in the five centuries since the First Explorers colonized Neska. And when the Union discovers Adan's hidden gift, they'll do anything and everything they can to discover his secret. Even if it kills him.
Fans of Alex London’s Proxy or M.R. Carey’s Ramparts Trilogy won’t want to miss this engaging and inclusive sci-fi dystopian thriller.
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A strong match for readers drawn to fast-paced science fiction thrillers about alien contact, ancient missions, and global catastrophe.
Lost Arrow
Sci-Fi · First Contact
Our take
Called “BADASS” by screenwriter Jon Hoeber, Lost Arrow follows deep-sea surveyor Sara Long after she discovers a city-sized alien object buried beneath the Mariana Trench and accidentally wakes the 22,000 people inside. Their failed mission to seed human life on Earth threatens to ignite a war humanity cannot win, with a 3.9-star rating from more than 200 Amazon reviewers. A strong match for readers drawn to fast-paced science fiction thrillers about alien contact, ancient missions, and global catastrophe.
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About the book
Beneath the ocean’s floor, a dangerous secret sleeps.
A 2019 Independent Press Award Distinguished Favorite, a 2019 National Indie Excellence Award Finalist and a Finalist Winner for Science Fiction and Cross Genre in the 2019 American Book Fest's Best Book Awards.
It’s another lost day for Sara Long aboard the deep-sea survey vessel, the Lewis. Technically, she’s running an experimental sonar that’s supposed to unlock the geologic secrets of the Mariana Trench, the deepest place on Earth. But really, she’s just running as far from home as possible.
While checking a routine scan, an impossible image emerges of a city-sized object buried deep in the sediment. Sarah's not exactly a Nobel Prize winner, but she instantly knows this: Whatever the object is, it isn’t from this planet. And for the first time in a long time, Sarah sees a purpose for her life.
Except the object has its own ideas. Sarah’s scan didn’t merely discover the thing. It woke it, along with the twenty-two thousand people inside. And when they make their own discovery, that their mission to seed the first human life on Earth has gone horribly wrong, everything goes wrong.
Now Sarah’s running in whole new directions. And the world is running head long into a war it can’t possibly win.
Moving between characters anchored in contemporary American life and those aboard a fascinatingly imagined starship, Lost Arrow is a fast-paced, speculative thriller that rethinks the line between alien and human by finding the cleverest of ways to erase it. If you love Michael Crichton and Dan Brown, start this heart-pounding series.
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In 2194, seventeen-year-old Nicholas Seafort is thrust into command aboard the Hibernia after a rescue mission goes awry.
Midshipman’s Hope
Sci-Fi
Our take
In 2194, seventeen-year-old Nicholas Seafort is thrust into command aboard the Hibernia after a rescue mission goes awry. Battling resentful officers, a malfunctioning ship, and a deadly epidemic, Seafort must rise to the challenge—or risk losing the crew. Inspired by Heinlein and Card, this gripping debut launches the high-stakes Seafort Saga.
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About the book
In the year 2194, seventeen-year-old Nicholas Seafort is just a midshipman aboard the Hibernia, bound for the thriving colony of Hope Nation. But when a rescue mission goes catastrophically wrong, Seafort finds himself thrust into an unthinkable position: leadership.
Unprepared and resented by the ship’s officers, Seafort must navigate crises that test his resolve and ingenuity. From a malfunctioning navigation system to a deadly epidemic sweeping through the crew, every decision carries life-or-death consequences. And even Hope Nation, their destination, hides dangers they could never have imagined.
Inspired by the likes of Robert Heinlein and Orson Scott Card, with echoes of Horatio Hornblower, this gripping debut in the Seafort Saga is a high-stakes tale of duty, survival, and courage in the vastness of space.
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Captain Colderaro hides as a freighter pilot, her past buried—until she’s tasked with delivering a foreign princess.
Splendor’s Orbit
Sci-Fi · Teen + Young Adult · Space Opera
Our take
Captain Colderaro hides as a freighter pilot, her past buried—until she’s tasked with delivering a foreign princess. Now hunted by the Confederacy, pirates, and mercenaries, she must navigate deadly space while protecting her cargo and her identity. Can she deliver the princess safely, or will her hidden past destroy everything?
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About the book
Ten years ago, Captain Colderaro was a hero of the Confederacy Task Force—until she vanished. Now presumed dead, she hides in plain sight as a freighter pilot, taking on the occasional refugee to soothe her guilt.
But when her latest cargo turns out to be a princess from a foreign race and her bodyguards, Colderaro is thrust into a galaxy-spanning conspiracy. Hunted by the Confederacy Task Force, space pirates, and relentless mercenaries, the captain must navigate treacherous space to deliver her precious cargo.
Caught between protecting her identity and the princess’s life, Colderaro faces impossible odds. Can she outrun her pursuers and uncover the truth behind the scheme, or will this mission expose her secrets and cost her everything?
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In a future where glowing skin spells death, Daniella Starling and her best friend have spent 17 years trapped in a mysterious home for abandoned girls.
The Zamora Project
Dystopian · Sci-Fi · Teen + Young Adult
Our take
In a future where glowing skin spells death, Daniella Starling and her best friend have spent 17 years trapped in a mysterious home for abandoned girls. When dark secrets and deadly truths come to light, Dani must face the terrifying reality of her existence—before everything she knows is destroyed.
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About the book
When another girl dies under unusual circumstances, doubt begins to seep into their world. Dani can’t ignore the growing cracks in the story they’ve been told. As danger mounts and dark truths surface, Dani must confront the terrifying reality of her existence. But will she uncover the truth in time, or will everything she knows burn to the ground?
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In the lawless reaches of border space, exiled Captain Liam Kimani faces threats deadlier than war.
Astray
Sci-Fi
Our take
In the lawless reaches of border space, exiled Captain Liam Kimani faces threats deadlier than war. His fate intertwines with Nora Devi, a haunted xeno-archaeologist whose secrets could shatter the fragile peace between worlds. As hidden truths surface and loyalties are tested, survival hinges on an uneasy alliance—one forged in desperation but shadowed by the power of what lies buried.
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About the book
Nora Devi is a xeno-archaeologist with a complicated past. She has buried more secrets than she’s dug up. Widowed in the recently ended twelve year war between Capitoline and Palantine, she now makes a living as an independent tagger in border space.
Captain Liam Kimani could be credited with ending the latest royal war. Instead, he’s blamed for it. Dirty commoners aren’t meant to lay their hands on royalty.
He has no regrets.
When Liam and his crew of the battlecruiser RC Genghis Khan are exiled to Capitoline’s border they discover that life in unexplored space can be more dangerous than war, and that their best chance of survival lies with a mysterious, elusive tagger.
The only problem is that Nora’s secrets might destroy the precarious stability of the entire Human Sector.
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