Best Sci-Fi Novels

In How to Train a Defiant Incubus, a woman struggles with Riven Sterling, a custom-designed partner who remains cold despite his programming. When customer service suggests a replacement for the malfunctioning unit, she hesitates due to his perfect design. However, a family dinner reveals the truth: Riven has bonded with her stepsister, Teresa, who accidentally opened his delivery parcel. Realizing his loyalty is misplaced, the protagonist finally decides to trade him in.

Lina has guarded a lethal secret for a decade, ever since she shielded a killer following Sophia Lisciotti’s murder. Despite being hunted by the Sollazzo family, she remained silent. Now, Valeria Sollazzo has ascended as the ruthless Principessa, and she demands the truth. Using a high-tech memory extractor, Valeria forces Lina to relive the past. However, when the murderer’s identity is finally projected for all to see, the face on the screen leaves the powerful Don paralyzed with shock.

Finn is the primary suspect in the brutal murder of his in-laws, a crime that has rocked Cardinal City. His own wife, Police Chief Linda Reese, is the one who arrested him. As the killings continue with savage cruelty, Linda uses a sci-fi memory-decoding device to prove Finn's innocence and stop the slaughter. However, when she explores his mind to uncover the real killer, the truth she finds is so devastating that it leaves her completely shattered.

After eighteen years, Jason returns to his billionaire birth parents, only to find an impostor has usurped his place. Despite the truth, his family and fiancée reject him, claiming the pretender is their only true love. Following a near-fatal accident ignored by his parents, Jason abandons his life to join a secluded five-year satellite research mission. However, his silent departure triggers a desperate, nationwide search as his family suddenly realizes what they have lost.

Betrayed by her fiancé and relatives, a pregnant woman faces a death sentence in a rigged trial designed to harvest her organs for an adopted sister. To survive this modern sci-fi nightmare, she demands the court use advanced technology to project her actual memories for the public. As the truth of their cruelty unfolds on screen, the courtroom is moved to tears. This action-packed mystery follows her desperate fight to expose the family's greed and secure her own justice.

After being institutionalized for three years, a woman spends her life serving the husband who seemingly rescued her. Only on her deathbed does she learn the truth: Simon Bergman forged the medical records that destroyed her astronaut career to give her spacecraft seat to another woman. Now, she has returned to the day of the selection. This mystery romance follows her journey to protect her future and refuse the help of the man who once traded her dreams for his own secrets.

After eighteen years, Wanda returns to her billionaire parents, only to find herself replaced by Jillian, a fake heiress. While her family and former fiancé shower Jillian with affection, Wanda is neglected even after a life-threatening accident. Choosing a new path, she accepts a confidential five-year satellite project with a space agency. Her sudden disappearance triggers a nationwide search as the family that once discarded her now desperately tries to reclaim her.

When the system triggered a global apocalypse, every human was limited to three pet slots for guardian beasts. While others invested in massive predators like lions and crocodiles, the protagonist is left with three disabled stray cats: one blind, one lame, and one kitten. Believing he is doomed, he hides away, only to discover his pets are far from helpless. On the third day, his blind cat returns from a slaughter, speaking clearly and proving that these strays are the ultimate endgame.

After a devastating car accident leaves her comatose for three years, a wife wakes up to a shocking reality. Her billionaire husband, Julian, has created a perfect bionic replica of her to take her place in his life and bed. Having fallen in love with this duplicate, Julian refuses to shut the android down, claiming she is merely an extension of his wife. In response, the wife decides to transfer all her memories of him into the machine, granting him the flawless partner he truly desires.

After surviving a decade of horror, Hayley Reid is betrayed and sent back in time to two weeks before the apocalypse begins. Ignoring her greedy family, she uses her knowledge to sell her home and begin stockpiling. Leveraging an overpowered super base system, Hayley constructs an impenetrable steel fortress. While the world descends into zombie-infested chaos and starvation, she lives in luxury, transforming her shelter into the world's strongest sanctuary.

Rowan’s fated mate, Caspian Thorne, is the Sterling Crest Pack's future Alpha, renowned for his healing blood. But when his research partner, Jocelyn, tests a deadly Soul-Eater agent on Rowan, her inner wolf begins to decay. Caspian dismisses the attack, preparing a gene serum before abandoning Rowan to save an injured Jocelyn. Unbeknownst to him, the incomplete cure is actually a lethal poison. Offered a choice by the Moon Goddess, Rowan decides to embrace this tragic fate to escape.

Seeking permanent companionship, Ms. Ross custom-orders a genetically engineered merfolk from AquaGene Corp. Though advised to form an immediate bond at the facility, her first encounter with Lance is chillingly distant. Instead of the loyal partner she expected, the merman meets her with a cold, judgmental gaze. A week later, her hopes for a shy companion vanish as Lance's true nature surfaces, turning her expensive investment into a chaotic disaster.

After 999 warnings, Grace Stone’s internal system gives her a final choice: leave billionaire John Miller or die. Tired of sacrificing her art and dignity for a man obsessed with his secretary, Grace orders the system to surgically remove the lovesick part of her brain. When John later tries to confront her, he meets a stranger. Devoid of emotion, Grace views him as a mere nuisance blocking her light, threatening to report his illegal detention of her to the police.

After the counterfeit heiress Giselle Foster is reborn, she convinces her family that a zombie apocalypse will soon destroy civilization. Her parents blindly trust her, amassing enormous debts to construct an indestructible bunker. While Giselle mocks her rival from behind reinforced walls, the protagonist takes a different path by handing the virus antidote to the military. Now that the world is safe, the family is left to face the loan sharks they can no longer pay back.

After a devastating betrayal by his closest friend left his body crippled and his gaming career ruined, Damon is unexpectedly thrown back in time to the launch of Earth Online. Armed with absolute knowledge of future secrets, hidden exploits, and a sealed ancient lineage, he claims the powerful blood of the first Vampire King. He will no longer play fair. As Damon begins his ruthless ascent to the top, he uncovers a shocking truth: the virtual world is real, and the fate of humanity depends on his conquest.

Yuan’s life was defined by darkness and immobility. Ravaged by an incurable illness that stole his sight and paralyzed his entire body, he was abandoned by his parents and forgotten by society. His devoted younger sister remained his only anchor to reality. However, everything changes when he enters Cultivation Online, a groundbreaking VRMMORPG. Within this virtual universe, his physical limitations vanish, allowing him to unleash an unprecedented genius and forge a legendary destiny across both worlds.

Following the devastating Collapse, society is fractured, monsters roam the ruins, and power dictates survival. Nineteen-year-old Nakashima Rokuro has nothing. Deemed entirely talentless in a world dominated by elite guilds that discard the weak, he survives as a junker, scavenging broken machinery. Refusing to die in the shadows, Rokuro fights a relentless daily battle to prove his worth and find purpose amidst the wreckage of a brutal, unforgiving civilization.

Devastated by her husband's passing, a woman’s intense mourning leads to a deteriorating mental state. Seeking to ease her pain, her in-laws commission a bespoke robot companion. However, the sight of the machine, unit 008, only deepens her agony because it shares her late spouse’s exact features. The situation takes an unexpected turn when she inadvertently activates the android’s secret programming. Under the cover of night, 008 kneels by her bedside, offering a mysterious "third form of service."

In Metro City, corporate giants and flashy superheroes dominate, leaving ordinary citizens in the shadows. Scott McQueen dreams of becoming a mysterious antihero. His life changes when he acquires the Harem Streamer System. By broadcasting his nightly exploits, Scott gains views, cash, and high-tech upgrades. However, viral fame brings unexpected consequences. Now, powerful corporate enemies, rival factions, and a growing circle of obsessed superheroines are all desperately hunting him down.

After being sacrificed by her sister to bear the child of the star pirate Black Mamba, the protagonist suffered a brutal death. Miraculously reborn, she finds herself facing the same nightmare. However, her sister has also returned to the past and chooses to claim the pirate for herself this time. Driven by malice, the sister intends to ensure the protagonist suffers even more in this new life, forcing her to flee the horrors of her previous existence.

During humanity's desperate war against the Dalki, superpowered individuals emerged from the shadows to fight. Quinn, left with nothing but a locked heirloom book, suddenly unlocks a powerful LitRPG system that reshapes his destiny. As he completes quests to gain incredible strength, the system issues a terrifying new directive: consume human blood within twenty-four hours or perish. Caught between survival and his humanity, Quinn must navigate a dangerous new reality.

Dr. Isolde Vance demanded athletic perfection, branding her daughter Wren as flawed. To suppress pre-competition nerves, the sports psychologist forced Wren and her twin, Hailey, to wear biofeedback bracelets. While Hailey’s band glowed a calm blue, Wren’s flashed red, triggering agonizing injections of a neuro-calmer. The abuse peaks on the night of the National Championships. Suffering a massive bracelet malfunction, a desperate Wren begs for help, only for her mother to administer a maximum dose and abandon her.

After ten years of marriage, Emma Shaw believes in her husband Alex Carter's loyalty, even after he admits to a drugged encounter with an intern. However, a catastrophic cyber attack on Alex’s AI firm reveals a devastating secret. Intern Brooke Anderson is pregnant with his twins after they spent days trapped in a high-radiation server room. Faced with his betrayal and his family's joy over the new heirs, Emma removes her ring and contacts a mysterious figure named Sullivan to begin a hidden collaboration.

In My Mother's Blind Faith in a Lie Collar Broke Me, a mother adopts a sadistic scientific parenting method to ensure her twins grow up honest. She forces her children to wear collars that detect lies, delivering agonizing electric shocks whenever the light turns red. While Daniel’s collar remains green even during blatant lies, the protagonist is tortured for simple truths. This young-adult sci-fi mystery explores the horror of a child gaslit into believing they are a born liar.