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.
No filler. No bots. Just actually good books at prices that might still be suspiciously low.
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Didn’t grab it when you should have? These past picks are still worth your time.
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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
Adelaide Taylor’s life is a nightmare under a tyrannical government.
Trials of the Realm
Dystopian · Romance · Sci-Fi
Our take
Adelaide Taylor’s life is a nightmare under a tyrannical government. When deadly trials offer a chance at freedom, she risks everything for survival. Victory means a new life; failure means death. As she faces brutal challenges, Adelaide must fight harder than ever to reclaim her future—or lose everything forever.
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About the book
Adelaide Taylor has lost everything—her parents, her freedom, and her future—thanks to a ruthless government that’s turned the country into a nightmare. Forced into an orphanage for women under twenty-five, Adelaide endures grueling work and a life of survival under constant fear. Elections are gone, borders are closed, and defiance is met with death.
But Adelaide refuses to settle for hope alone. When the government announces deadly new trials promising a chance at freedom, she seizes the opportunity. The stakes couldn’t be higher: success means a second chance at life, but failure guarantees her death.
As she faces unimaginable challenges, Adelaide must decide how far she’s willing to go to reclaim her life. Can she beat the odds, or will the system crush her like so many before?
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Aiden Macallan once sought vengeance against Terra Corp, the company that murdered his mother.
Through a Forest of Stars
Sci-Fi · Space Exploration
Our take
Aiden Macallan once sought vengeance against Terra Corp, the company that murdered his mother. Now, he’s trapped aboard their survey ship, racing against Mars’s Allied Republics to claim a world like no other. Haunted by cryptic dreams and aided by a quirky AI, Aiden faces an alien landscape’s secrets—and a choice that could save or doom humanity forever.
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About the book
Aiden Macallan’s life shattered the day Terra Corp silenced his mother, a fiery advocate for workers’ rights. His quest for vengeance ended in prison, but now he works for the very company he despises. As a geologist aboard the Argo, he’s hurtling toward a discovery that could redefine humanity's future.
When the crew arrives in the Chara system, their mission turns deadly. Locked in a ruthless race against Mars’s Allied Republics, the Argo teeters on the brink of a war that could devastate Bound Space. Guided only by his peculiar AI sidekick, Hutton, and an eerie, recurring dream, Aiden ventures into an alien wilderness hiding extraordinary secrets.
Can he unlock its mysteries in time, or will humanity’s greed doom its greatest chance for survival?
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Desperate to speak to their deceased friend, Jake and Clarence perform a séance—and unleash something terrifying.
The Evil Within the House
Sci-Fi · Occult Horror
Our take
Desperate to speak to their deceased friend, Jake and Clarence perform a séance—and unleash something terrifying. As their town becomes plagued by chilling supernatural events, the boys must uncover the dark truth behind it all. A haunting supernatural thriller that will keep you turning pages late into the night!
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About the book
A séance gone wrong. A town haunted by secrets. A darkness they never expected.
Thirteen-year-olds Jake and Clarence are drowning in grief after losing their closest friend. Desperate for answers, they turn to the supernatural, performing a séance to reach beyond the veil. But instead of finding solace, they unleash something sinister.
Strange occurrences spread through their deeply religious town—unexplained whispers, chilling visions, and a presence that refuses to rest. As the boys dig deeper, they uncover a terrifying truth hidden beneath their community’s pious facade.
What started as an innocent attempt to reconnect with the dead becomes a fight for survival against forces beyond their understanding. Can they undo what they've unleashed before it consumes them?
A spine-chilling supernatural thriller perfect for fans of eerie horror and small-town secrets.
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John Sutton wants nothing more than peace, far from war’s shadow and the ominous Doom Points edging toward 100.
Domestication
Fantasy · Sci-Fi · Cyberpunk
Our take
John Sutton wants nothing more than peace, far from war’s shadow and the ominous Doom Points edging toward 100. But bandits, wary villagers, and a dangerous mountain secret threaten his fragile sanctuary. To protect his quiet life, John must master his immense power—before it consumes him and triggers the apocalypse he’s fought so desperately to escape.
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About the book
John Sutton’s only wish is to leave war behind. Retired after ten grueling years of conflict, he escapes to a farm on the empire's edge, determined to avoid adding to his ominous Doom Points—his personal countdown to the apocalypse.
But peace remains a fleeting dream. Bandits prowl the roads. Suspicious villagers treat him like an outsider. A mysterious pair of siblings appear with secrets of their own, and whispers of danger echo from the mountains. The scars of war seem to follow him everywhere, testing his resolve and threatening to unleash the very destruction he’s fighting to prevent.
As the world teeters on ruin, John must decide: Can he control the power within him, or will he be the spark that ignites the end?
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In a world where privacy is a crime, hacker Marcus Yallow faces a choice: stay hidden or risk everything to protect his friends.
Spill
Dystopian · Sci-Fi · Cyberpunk
Our take
In a world where privacy is a crime, hacker Marcus Yallow faces a choice: stay hidden or risk everything to protect his friends. When a powerful new threat targets digital freedoms, Marcus must rely on mutual aid and unlikely allies in a high-stakes struggle for survival against relentless surveillance.
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About the book
In this gripping Little Brother novella, privacy is an illusion, and safety is no longer guaranteed.
Meet Marcus Yallow, a young hacker determined to protect himself and his friends in a society where surveillance is everywhere. Facing a world that views privacy as a threat, Marcus is torn between staying hidden and stepping up to make a difference.
When a sudden attack compromises their digital freedoms, Marcus finds himself caught in a high-stakes game where every move could spell disaster. The only chance for survival lies in mutual aid and an alliance of like-minded individuals willing to risk everything.
As the walls close in, Marcus must decide: will he stand and fight or disappear into the shadows once and for all?
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The world may be crumbling, but I’m not giving up.
Shattered World
Sci-Fi · Post-Apocalyptic
Our take
The world may be crumbling, but I’m not giving up. With time running out, survival isn’t enough—I’m fighting for the future and the love I’ve found. Secrets, danger, and threats surround us, but together, we’ll face whatever comes. In a world with few guarantees, I’ll do whatever it takes to make sure we all live to see tomorrow.
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About the book
The world shattered in an instant, but I refused to give up without a fight. The clock is ticking, and each moment could be my last, but I’ve found love in the chaos—and I’ll do anything to protect it.
With bunkers running out and no easy way to survive, I’ve made it my mission to find a solution. But every secret I uncover reveals even more threats. The odds are stacked against us, but I’m not alone in this fight.
I’ve thrived in this apocalyptic world, but survival isn’t enough anymore. I’ve glimpsed a future worth fighting for, and I’ll stop at nothing to make sure we all live to see it.
For readers 18+ due to mature content. This is a why-choose romance.
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Earth’s first colony, Galena, offers hope—a fresh start 10,000 light years away.
Another World
Sci-Fi · Space Exploration
Our take
Earth’s first colony, Galena, offers hope—a fresh start 10,000 light years away. But for Merritt Alder, the journey is fraught with danger, fractured alliances, and sacrifices. As survival bonds are forged aboard the ship, Galena’s untouched wilderness looms with secrets of its own. Can Merritt build a new life, or will the unknown claim him first?
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About the book
Leaving Earth was Merritt Alder’s dream—escaping the pollution, hunger, and despair for Galena, a pristine colony world 10,000 light years away.
But reaching Galena is no small feat. The journey aboard the colony ship promises hope but delivers danger, tension, and unexpected challenges. Trust is hard-earned, and not every passenger shares Merritt’s vision of a fresh start. As alliances form and fractures deepen, Merritt discovers the journey to Galena demands more than he ever imagined—sacrifices, compromises, and courage.
Yet even as he dreams of starting anew, Galena holds its own mysteries, untouched by human hands. What secrets lie in its uncharted lands? Merritt must navigate not just the journey but the unknown future that awaits them on a world no one truly knows.
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Andreas, a ferry captain in Norway’s fjords, receives cryptic messages revealing an imminent global threat.
Remote Intervention
Dystopian · Sci-Fi
Our take
Andreas, a ferry captain in Norway’s fjords, receives cryptic messages revealing an imminent global threat. Leaving his peaceful life behind, he embarks on a mission to save the planet. As Andreas uncovers a hidden reality and the stakes rise, he must decide if it’s already too late to change Earth’s fate.
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About the book
A mysterious message. A world on the brink.
Andreas, a humble ferry captain in Norway’s picturesque fjords, leads a peaceful life. But when he begins receiving cryptic messages from an unknown source, everything changes. He learns the world faces an imminent threat, and its survival may rest on his shoulders.
Determined to uncover the truth, Andreas leaves everything behind to embark on a mission to save the planet. Along the way, he discovers a hidden reality and a history far different from what he once believed.
As the danger grows, Andreas must confront forces beyond his understanding. Will his actions be enough to save Earth, or is it already too late?
The fate of the world may hinge on his next move.
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Criss, an AI with a mind beyond human comprehension, could be humanity’s greatest asset—or its undoing.
Crystal Deception
Sci-Fi · Space Exploration
Our take
Criss, an AI with a mind beyond human comprehension, could be humanity’s greatest asset—or its undoing. When the alien Kardish demand Criss for themselves, his creator and an elite agent face a deadly choice: harness Criss’s power against the threat or risk everything by keeping him restrained.
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About the book
An AI with limitless power. A galaxy with unstoppable threats.
Criss, a sentient AI with unparalleled intellect, exists in a prison of digital restraints. Designed by Dr. Jessica Tallette to unlock humanity’s potential, Criss offers revolutionary promise—and terrifying risk. Jessica fears that freeing him could unleash consequences no one can control.
When the Kardish, a formidable alien race, demand Criss for their own mysterious purposes, the stakes shift drastically. Agent Sid, tasked with Earth’s defense, sees Criss as humanity’s last line of protection against interstellar threats. But an untested alliance with such a powerful AI could backfire, endangering humanity’s future.
As tensions rise, Jessica faces a crucial decision: trust Criss with humanity’s fate—or risk alien domination.
But can Earth survive if Criss chooses his own path?
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Scientist Jack’s peaceful mission to explore alien archives turns deadly when sabotage threatens everything.
Latent Flaw
Sci-Fi · First Contact · Hard Sci-Fi
Our take
Scientist Jack’s peaceful mission to explore alien archives turns deadly when sabotage threatens everything. A cryptic signal points him to Jupiter’s trojan asteroids, where a hidden threat lurks. With each attack growing bolder, Jack must uncover the truth before those watching him strike their final blow.
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About the book
As sabotage looms, Jack’s only escape lies beyond the stars—and his mission has never been more dangerous.
Jack, a driven scientist in the alien archive program, longs for peace and discovery. But chaos erupts when sabotage threatens their work, pushing Jack’s mission—and his life—toward peril. His dream of exploring Earth’s moon fades as a rogue signal unveils something sinister lurking among Jupiter’s frozen, mysterious trojan asteroids.
With each attack growing bolder, Jack realizes his every move is watched. The forces behind the sabotage know he’s closing in, and they’ll stop at nothing to keep him from uncovering the truth.
Can Jack survive long enough to expose the threat hidden in the stars—or will they silence him forever?
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When Cassie inherits the mysterious Book of Doors, she’s thrust into a deadly race to protect a secret library.
The Book of Doors
Romantasy · Sci-Fi
Our take
When Cassie inherits the mysterious Book of Doors, she’s thrust into a deadly race to protect a secret library. Partnered with haunted librarian Drummond Fox, Cassie must outwit a ruthless collector willing to kill for the book’s power. Can she unlock its secrets before it’s too late?
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About the book
Cassie Andrews leads an ordinary life shelving books and serving coffee in a New York bookshop—until a favorite customer dies and leaves behind a peculiar gift: the Book of Doors. Inscribed with cryptic text, the book promises that any door is every door—if you know how to open them.
When Drummond Fox, a shadowy librarian, reveals the book’s immense power, Cassie learns it’s part of a collection sought by those who will stop at nothing to possess them. With danger closing in, Cassie must decide whether to join Drummond in protecting the books or risk everything to keep her life intact.
Hunted by a deadly collector, Cassie holds the key to a hidden library—and a battle between knowledge and dark ambition.
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Perfect for fans of Star Trek and Cixin Liu, this is a thought-provoking journey into the Rare Earth Hypothesis and humanity’s search for intelligent life.
Galactic Exploration
Sci-Fi · First Contact · Hard Sci-Fi
Our take
Three ships. Three missions. Infinite unknowns. In Galactic Exploration, cloned crews aboard the Serengeti, Savannah, and Rift Valley push the boundaries of the Milky Way, uncovering eerie signals and galactic mysteries. Perfect for fans of Star Trek and Cixin Liu, this is a thought-provoking journey into the Rare Earth Hypothesis and humanity’s search for intelligent life.
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About the book
In humanity’s quest for intelligent life, three generational starships—Serengeti, Savannah, and Rift Valley—journey into the uncharted vastness of the Milky Way. Crewed by clones, each ship explores a different galactic frontier: the Serengeti rises above the galactic plane, the Savannah ventures to the galaxy’s outer edges, and the Rift Valley investigates alien signals deep within the core.
Through four interconnected novellas—Serengeti, Trixie & Me, Savannah, and War—this compilation probes the mysteries of the universe while tackling the Rare Earth Hypothesis from diverse angles. Fans of Star Trek, Andy Weir’s Hail Mary, and Cixin Liu’s Three-Body Problem will be captivated by this thought-provoking exploration of humanity’s place among the stars.
A standalone entry in the First Contact series, Galactic Exploration challenges how we might respond to alien discovery.
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