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.
Why Check Out Past Deals?
Didn’t grab it when you should have? These past picks are still worth your time.
Still discounted? Some deals stick around longer than you'd think.
Fuel your TBR guilt-free. Add more, regret nothing.
Browse Past Deals
These Books Earned Our Seal of Approval—Snag Them Before They Vanish (Again)
Looking for spicy fantasy? Cozy mystery? A nonfiction rabbit hole? Use the filters below to search by genre, mood, or chaotic book-buying impulse.
Each book comes with retailer links. Just tap “Get Deal” and you’re off.
*Apropos Books is an affiliate marketer, which means we may earn advertising fees from qualifying purchases. These fees are paid by the retailer or affiliate partner, not added to your purchase price, so there’s no extra cost to you.*
959 past books matching Sci-Fi
Sixteen-year-old bearer of humanity’s last knowledge, she faces a choice: share it with the world or let it fall into the hands of the ruthless Wraith Lord.
The Knowledge Seeker
Dystopian · Sci-Fi · Teen + Young Adult
Our take
Sixteen-year-old bearer of humanity’s last knowledge, she faces a choice: share it with the world or let it fall into the hands of the ruthless Wraith Lord. In a post-apocalyptic world on the edge of another Dark Age, she must risk everything to protect the Knowledge—or watch humanity descend into darkness.
Choose your retailer
About the book
I never asked to hold the last remnants of your civilization’s knowledge, but at sixteen, that burden is mine.
Six hundred years after climate-fueled wars ended your world, only printed books survived—and now every piece of human knowledge is stored in a device around my neck, accessible only to me. With society on the brink of another Dark Age, I must find a way to share this knowledge with the world.
But the Wraith Lord has other plans. Ruthless and power-hungry, he will stop at nothing to claim the Knowledge for himself, dooming humanity to endless darkness and servitude.
To save the world, I must risk everything. Can I unlock the Knowledge for all—or will I lose it to the Wraith Lord’s grasp?
Purchases through these links may earn Apropos Books a commission at no extra cost to you. Check the retailer for current price and availability.
Hunter expected an easy job on a quiet planet—just track down a missing researcher.
The 28th Gate
Sci-Fi
Our take
Hunter expected an easy job on a quiet planet—just track down a missing researcher. But as he unravels corporate lies and follows her trail through a ring of ancient gates, Hunter realizes he’s uncovered a discovery powerful enough to change everything—and put a target on his own back.
Choose your retailer
About the book
Hunter thought the assignment on a quiet backwater planet would be simple: track down a missing researcher. With his partner at his side, Hunter follows her trail through a massive ring of twenty-seven mysterious gates, only to discover the corporation he works for has hidden the truth.
As he uncovers the secrets behind the researcher’s flight, Hunter realizes he’s stumbled upon the most important discovery since the Gate Age collapse. Driven by justice—and a hint of revenge—he now faces the very corporation he’s spent the last decade trying to evade.
Caught between duty and survival, Hunter must decide if this revelation is worth risking his life. Can he expose the truth before the corporation silences him for good?
Purchases through these links may earn Apropos Books a commission at no extra cost to you. Check the retailer for current price and availability.
In a future where survival is automated, freedom becomes the first casualty.
This Time We Lose
Dystopian · Techno-Thriller · Time Travel
Our take
In a future where survival is automated, freedom becomes the first casualty. In 2188, Landry lives inside a ration city governed by an all-controlling AI that decides who eats, heals, and endures. Secretly aligned with MAGERA, a covert time-travel resistance, she risks everything to undo the decisions that led to Earth’s collapse. This dystopian thriller explores control, climate ruin, and the cost of rewriting history.
Choose your retailer
About the book
In the year 2188, survival is automated—but living is another matter entirely.
Landry’s every need is controlled by Radan, an all-powerful AI. Food is rationed. Health is monitored. Emotions are irrelevant. In this future, staying alive is a privilege, not a right.
Landry lives in a ration city—safe, fed, and watched. But safety isn't freedom. And survival isn’t living.
She secretly works for MAGERA, a covert organisation with one mission: travel back in time to stop the events that triggered Earth’s collapse.
Because in this world, food is scarcer than gold, climate change is irreversible, and AI is the last authority.
Can they identify the turning points in history before it’s too late to change them?
A gripping tale of rebellion, survival, and rewriting the future.
Purchases through these links may earn Apropos Books a commission at no extra cost to you. Check the retailer for current price and availability.
A good pick for readers who want Mars-set science fiction, colonization challenges, and a series-length space adventure.
Colony One Mars
Sci-Fi · Space Exploration
Our take
Colony One Mars opens the Colony Mars series with a fast-paced science fiction thriller centered on humanity's attempt to establish a colony on Mars. A good pick for readers who want Mars-set science fiction, colonization challenges, and a series-length space adventure.
Choose your retailer
About the book
A colony on Mars vanishes without a trace. Now, humanity’s second mission faces a chilling question: what wiped them out?
Biologist Dr. Jann Malbec arrives to find the site in ruins, the fifty-four original colonists presumed long dead. But soon, she discovers someone alive, hidden in the shadows—and a strange illness infecting her crew.
As the sickness spreads, Jann races to uncover its cause, suspecting the abandoned facility harbors more than survival secrets. The stakes are deadly: this virus doesn’t just endanger her team; it may threaten all of Earth.
Trapped and running out of time, Jann must solve the mystery before the disease claims them—and before Mars becomes their final resting place. Is survival even possible when the greatest threat on Mars is humanity itself?
Purchases through these links may earn Apropos Books a commission at no extra cost to you. Check the retailer for current price and availability.
Eighteen years after the Galactic Empire’s collapse, Keira Kane fights to survive on a dying planet ruled by a ruthless regime.
Fallen Empire
Sci-Fi · Military Sci-Fi
Our take
Eighteen years after the Galactic Empire’s collapse, Keira Kane fights to survive on a dying planet ruled by a ruthless regime. When a routine job turns her into a fugitive, Keira uncovers secrets powerful enough to save—or destroy—humanity, forcing her into a battle she never saw coming.
Choose your retailer
About the book
The Galactic Empire has crumbled, leaving humanity in ruins. Trillions are dead, and what remains is a fractured galaxy plunged into darkness.
Keira Kane, raised on the harsh planet of Asherho, is a skilled mechanic surviving under a brutal regime. Adopted by former Imperial Marines, she’s used to scraping by on a dying planet ruled by decay and fear.
But when a routine repair mission goes wrong, Keira becomes a fugitive, hunted by both her government and a ruthless militia. A mysterious warship appears in orbit, stirring questions and threatening the fragile peace.
Now, she must confront secrets that could save humanity—or doom it forever.
Will Keira rise to face her destiny, or will she fall, sealing humanity’s fate in eternal darkness?
Purchases through these links may earn Apropos Books a commission at no extra cost to you. Check the retailer for current price and availability.
Ashra Shah’s past is back to haunt her.
The Ashra Enigma
Sci-Fi · Techno-Thriller
Our take
Ashra Shah’s past is back to haunt her. Just as she and Elliot embrace life as new parents, a deadly enemy reemerges, forcing Ashra to relive her first mission as a spy—a mission marked by betrayal, loss, and secrets she hoped to forget. Can she protect her family from a buried past?
Choose your retailer
About the book
Every hero has an origin story. Ashra Shah’s is her darkest secret.
As Ashra and Elliot settle into life as new parents, shadows from their past begin to resurface. An old enemy has returned, threatening the family they’ve fought so hard to build.
To stop this vengeful ghost, Ashra must confront the story she’s buried: her first mission as a spy, where friendships were shattered, and betrayal left scars that haven’t healed.
With each clue drawing her deeper into old wounds, Ashra faces the ultimate test—protect her family or risk losing herself to a past filled with secrets and ghosts.
Can Ashra reclaim her life without losing everything she loves?
Purchases through these links may earn Apropos Books a commission at no extra cost to you. Check the retailer for current price and availability.
When the Starship Rhea uncovers a mysterious cluster of planets brimming with quantum energy, Lieutenant T’Ryssa Chen encounters alien life unlike any seen before.
Greater Than the Sum (Star Trek: The Next Generation)
Sci-Fi · First Contact · Space Exploration
Our take
When the Starship Rhea uncovers a mysterious cluster of planets brimming with quantum energy, Lieutenant T’Ryssa Chen encounters alien life unlike any seen before. But as the Borg close in, desperate to seize control of this advanced technology, humanity’s survival hinges on one mission: stop them at any cost.
Choose your retailer
About the book
The Starship Rhea’s crew has just made a groundbreaking discovery: a cluster of carbon planets radiating powerful quantum energies. Lieutenant T’Ryssa Chen, a half-Vulcan with a rare talent for interspecies connection, encounters strange life-forms there, sparking hopes of a new understanding.
But chaos erupts when the Rhea comes under sudden attack by the Einstein, a Starfleet vessel overtaken by the Borg. Stranded on the planet, Chen and her team listen in horror as their comrades are assimilated above. Just as all seems lost, she’s transported two thousand light-years away—by the beings themselves.
These beings control a quantum slipstream that the Borg are desperate to possess. With Captain Picard’s mission clear, will Starfleet stop the Borg before they access the ultimate weapon?
Purchases through these links may earn Apropos Books a commission at no extra cost to you. Check the retailer for current price and availability.
A shattered planet.
Nophek Gloss
Sci-Fi · Space Exploration · Space Opera
Our take
A shattered planet. A crew of outcasts. And Caiden, caught between survival and vengeance. With only a sentient ship and a few alien misfits by his side, Caiden must destroy the slavers who stole everything from him—even if it means risking everything he has left. One wrong move, and he’s history.
Choose your retailer
About the book
The planet he called home? Obliterated. Caiden’s family? Gone. His only shot at survival? A patched-up ship with a life of its own and a ragtag crew of aliens who aren’t exactly winning any popularity contests. Caiden’s about to learn that this universe is far bigger—and a whole lot stranger—than he ever bargained for. But the wonders of space have their darker corners, and Caiden has one goal: take down the slavers who wiped out his people. To do that, he’ll have to infiltrate their ranks, play the long game, and pray they don’t see through his plans. Because if he fails? He risks losing the one chance he has to get even. Can he succeed—or is he doomed to die trying?
Purchases through these links may earn Apropos Books a commission at no extra cost to you. Check the retailer for current price and availability.
Survival after the end of the world demands choices no one should have to make.
The Fortress
Dystopian · Sci-Fi
Our take
Survival after the end of the world demands choices no one should have to make. In The Fortress, a former teacher named Sim builds a sanctuary for orphaned children in a plague-ravaged wasteland and trains them to defend it. When a brutal marauder leader lays siege to their refuge, the young survivors must prove whether loyalty, discipline, and hard lessons can protect the fragile world they have built.
Choose your retailer
About the book
Winner of the Literary Titan Award 2025
"A pulsating masterpiece." --Eric Ferrar, Readers Favorite
A teacher in his old life. A warrior now.
In a post-apocalyptic world ravaged by plague, Sim molds a band of orphans to be child soldiers in an epic battle for survival. As their fortress stands tall against the chaos, Sim trains his young charges in the art of war, crafting them into a formidable force of resilience and unity. Their survival skills are honed, their courage tested, and their loyalty unbreakable.
But when the ruthless Zagan and his horde of marauders launch a relentless and bloody siege, the orphans face their greatest challenge yet. With destruction looming and the devil's emissary at their gates, Sim and his fortress of flesh and blood must rise to the occasion. The fate of their world rests on their shoulders.
Can Sim's tactical genius and the orphans' valor withstand the storm of evil, or will their sanctuary crumble under the weight of darkness?
Dive into this pulse-pounding saga of courage and redemption.
Purchases through these links may earn Apropos Books a commission at no extra cost to you. Check the retailer for current price and availability.
When a deadly Borg plague strikes Earth, Admiral Janeway and her crew face accusations and a ticking clock.
The Farther Shore (Star Trek: Voyager Book 2)
Sci-Fi · First Contact
Our take
When a deadly Borg plague strikes Earth, Admiral Janeway and her crew face accusations and a ticking clock. Joined by the U.S.S. Enterprise, Janeway must find the source of the infection before humanity falls to a ruthless new Collective. The cost of failure? Earth’s total assimilation.
Choose your retailer
About the book
Earth is under attack by an unrelenting Borg plague—and Starfleet blames the newly returned crew of the U.S.S. Voyager.
Admiral Kathryn Janeway barely has time to celebrate Voyager’s return before suspicions fall on her crew. Did they unknowingly bring back a Borg contagion capable of consuming Earth itself? Among the accused, former Borg drone Seven of Nine faces scrutiny that stirs dark memories and deep-seated fears.
With the U.S.S. Enterprise by her side, Janeway races to reunite her crew and unravel the mystery behind the infection. But each passing moment brings Earth closer to assimilation, and a deadly new Collective looms on the horizon.
Will Janeway’s journey home mark humanity’s end—or its salvation?
Purchases through these links may earn Apropos Books a commission at no extra cost to you. Check the retailer for current price and availability.
In a world reshaped by a virus that transformed the dead into relentless predators, journalists Georgia and Shaun Mason uncover a conspiracy that could alter everything.
The Rising
Dystopian · Sci-Fi
Our take
In a world reshaped by a virus that transformed the dead into relentless predators, journalists Georgia and Shaun Mason uncover a conspiracy that could alter everything. With the infected at their heels and a truth that refuses to stay buried, they’ll risk everything to expose a deadly cover-up.
Choose your retailer
About the book
The truth won’t rest, and neither will Georgia Mason. She’s a journalist in a world where humanity’s greatest cures created a new horror: a virus that drives its victims to one, insatiable command—FEED.
Twenty years after this virus spread like wildfire, society hangs by a thread. Georgia and her brother, Shaun, live in the shadow of the Rising, fighting to uncover stories most fear to touch. But when they stumble upon a conspiracy linked to the infected, they’re drawn into a deadly game with stakes higher than they ever imagined.
Their quest for the truth could change the world—or cost them their lives. As the infected close in, Georgia has only one plea: Rise up while you can.
Purchases through these links may earn Apropos Books a commission at no extra cost to you. Check the retailer for current price and availability.
Soz Valdoria, a bioengineered pilot, uncovers a dangerous secret on the sanctuary planet of Delos: the heir to her enemies’ throne is a genetic anomaly like her.
Primary Inversion
Sci-Fi · Space Opera
Our take
Soz Valdoria, a bioengineered pilot, uncovers a dangerous secret on the sanctuary planet of Delos: the heir to her enemies’ throne is a genetic anomaly like her. As war looms, her connection to this unlikely enemy could either destroy her people—or be their only chance at survival.
Choose your retailer
About the book
Soz Valdoria, a bioengineered fighter pilot, seeks refuge on the sanctuary planet Delos, escaping the brutal war between her Skolian people and the Traders. Haunted by her past as a prisoner, Soz encounters an Aristo—one of her cruel enemies—but something about him feels different.
When her instincts push her to investigate, Soz uncovers a shocking truth: this Aristo is a genetic anomaly like her and the heir to the Trader empire. His purpose? To seize control of the Skolian psibernet and conquer her people.
As tensions rise, Soz faces an impossible dilemma—trust her enemy or risk the destruction of her entire race. Can she stop him, or will her growing connection to him lead to the downfall of everything she holds dear?
Purchases through these links may earn Apropos Books a commission at no extra cost to you. Check the retailer for current price and availability.
Don’t Want to Miss Another Deal?
Get the best Kindle book deals delivered straight to your inbox. We feature new must read books every day—always hand-picked, never random—with links to Amazon, Barnes & Noble, or Kobo. Some discounts disappear fast, others linger (or come back around), so it’s worth keeping an eye out.