Best Sci-Fi Novels

Tsuki, heir to a cursed lineage, navigates the supernatural world of Temptations where cosmic horror and magic collide. Born with dual-colored hair and eyes that see hidden secrets, he is torn between ancestral duty and intense carnal desires. As magical families vie for power, Tsuki engages with witches representing seduction and danger. His journey through blood pacts and political intrigue reveals that his passions are a bridge to challenging forgotten gods.

Two years after John Foster’s death, his widow Cecilia receives a shocking video call from a future version of her husband. Expecting a joyful reunion, she is instead devastated as John confesses to faking his death to be with her friend, Adaline. He reveals that his mother and son were complicit in the scheme, visiting his secret family for years. Facing a cold reality of total betrayal, Cecilia must decide how to live after the truth is finally exposed.

In a post-apocalyptic world where magic and technology merge, human life is cheap. Threatened by deadly Evolutius Beasts, Achilles Maxwell is about to lose the last person he cares about. But when he absorbs mysterious crystals, a blue system interface ignites within him, granting him the limitless power of assimilation. As ancient, sealed entities begin to awaken, Achilles must harness his evolving bloodline to survive the oncoming storm and protect his own at all costs.

My grandfather once spoke of the Reptilians—monsters that mimic human appearances but hide a delicious, dangerous secret within. Before passing, he left a notebook claiming our instincts are the only way to identify these predators. When my cousin Braden arrives for the funeral, my intuition screams that he is no longer human. Now, I am faced with a chilling reality: the creatures my grandfather hunted are closer than I ever imagined.

For seven years, Cassidy hid her brilliance as a tech genius and designer to be Cornelius Lambert’s perfect wife. After catching him with his mistress and their son—who wished his mother was replaced—Cassidy’s world shattered. She discovered she was merely a temporary shield to control. Following a brutal confrontation where Cornelius’s men injured her to hide his affair, Cassidy stopped playing the victim. With recovered data and a cold heart, she is ready to strike back.

On her wedding day, the protagonist is publicly humiliated when her groom, Leonard Matthews, casts aside his ring to comfort his past love, Yasmin Harrell. Even her seven-year-old son abandons her to embrace Yasmin. As the guests mock her and Leonard blames her for the chaos, she refuses to break. What her husband and son do not realize is that she has already agreed to implement the Syrena Space Program, planning her ultimate departure.

Devoted to her first love, Juliet Sutton asks her husband, Matthew, to sacrifice his memories. She begs for three days to give a dying man his dream wedding, promising Matthew an antidote to restore their marriage afterward. Matthew consumes the pill, but he hides a devastating secret: as the creator of the drug, he knows no cure exists. In seventy-two hours, his love for Juliet will vanish forever, turning their final days into a tragic countdown to total oblivion.

Ms. Ross seeks permanent companionship by purchasing a custom-engineered merman from AquaGene Corp. Though she attends the initial bonding session as advised, the specimen, Lance, meets her with a chillingly cold gaze rather than affection. What she hoped would be a loyal partner turns out to be her greatest challenge. This modern sci-fi romance explores the fallout when a high-tech biological investment refuses to play its intended role, leaving its owner with a beautiful but defiant problem.

Orphaned at ten, the protagonist spent eight years exiled in a dormitory by a brother who hated them. This cruelty peaks during a horrific medical betrayal. While the protagonist lies dying, their brother transplants their brain to save his adopted sister, Eva. Dismissing his sibling's final agony as a dramatic ploy, he comforts Eva instead. Twenty-four hours later, a nurse discovers the protagonist's lifeless body lying in a pool of blood.

Dressed in her wedding gown, Jessica enters the laboratory with a devastating decision: she is leaving Jorwick for good. She tasks her shocked assistant, Kevin Aalders, with erasing her identity and recovering data on mutant bionics from three years ago. The wedding is officially off. Despite years of shared history and deep affection, Liam Zelenka has abandoned Jessica for Jeje, a bionic replica created in her image. Now, Jessica must secure her past and disappear.

Betrayed by the Burch family, I was cast out into a global freeze to perish. My adoptive sister stole my heirloom necklace, which contained a hidden spatial dimension of infinite food. As I died, I realized they had bled me dry for years. Now, I have woken up three days before the apocalypse began. With my memories intact, I will reclaim my magical space, hoard supplies, and ensure my treacherous family suffers the same cold fate they gave me.

After Phoebe Jones claims an AI chatbot named Babble secured her a spot at the elite Pemberton University, Maren tries to expose the obvious scam. Instead of listening, her classmates and best friend turn violent, leading to Maren's tragic death. When she unexpectedly regresses to the day of the announcement, Maren abandons her role as a whistleblower. She chooses to watch in silence as her peers eagerly follow a digital hallucination toward their own academic and financial ruin.

On her very first day as a county clerk, she expects a fresh start. Instead, she is forced to process a marriage license for her boyfriend, Timothy Sawyer, and another woman, Pansy Fox. Timothy is stunned to see her, assuming she was taking the bar exam. Though her heart breaks at their intimacy, she accepts this painful reality. Having traveled back from ten years in the future, she always knew Timothy and Pansy were destined to be together—she just never expected their story to begin so soon.

Awakening with system errors, Jazmin realizes she has replaced a fragile woman trapped in a cold marriage to Adrian, a billionaire. When Adrian demands a penniless divorce and physically attacks her, he is shocked by her lack of fear. The original Jazmin is dead; an indestructible entity now inhabits her body. She brutally overpowers Adrian, extorts a fortune, and joins forces with his rival to dismantle the lives of everyone who wronged her.

After Major Alek Crane is branded a traitor, his wife Annetta and their daughter are exiled to a frozen mountain wasteland by the ruthless Issac Rocha. Stripped of their wealth and abandoned by their hostile relatives, they are left to die in the snow. However, Rocha underestimated Annetta. Hidden within the peaks lies a military-grade bunker she secretly built. Now, she will use its resources to survive and destroy the men who framed her husband.

In this young-adult sci-fi horror, Wren and her twin Hailey are subjected to their mother’s cruel biofeedback experiments. Dr. Isolde Vance uses agonizing neuro-calmer injections to suppress Wren's anxiety. While Hailey’s device remains a placid blue, Wren's flashes red, marking her as flawed. During the National Championships, a device malfunction administers a lethal overdose. Left to die by her mother, Wren’s tragic final moments expose a terrifying psychological nightmare.

After dying in the apocalypse, I awoke as Kenzie Banks, a bankrupt socialite in an interstellar beast-world. My new life is a death sentence: my four beast-husbands have the legal right to execute me in sixty days. The original Kenzie tortured them and framed their brother, leaving them craving my blood. Trapped in a weak body with massive debts, I must use my secret subspace inventory to heal their wounds and earn their trust before my time runs out.

On the brink of a global heatwave, a mother's remarriage into wealth offers a single ticket to safety. In their past lives, the protagonist chose the rich family while her sister, Emma Johnson, stayed behind—yet both perished. Reborn on the day of selection, Emma uses underhanded tricks to secure the wealthy spot for herself, mocking her sister's apparent misfortune. Little does Emma know, her coveted path to survival is actually a descent into hell.

Waking up with a fatal wound, apocalypse expert Genevieve realizes she has transmigrated into the body of a sadistic beastman mistress. Her five mates, victims of the original owner's cruelty, watch with satisfaction as she bleeds out. Refusing to die for another's sins, Genevieve uses a biological link to force the loathing beastmen to save her. After a brutal, self-inflicted cauterization, she begins a grueling journey to survive their hatred and rewrite her destiny.

Betrayed by her fiancé, Leigh Simmons, she was trapped in the desolate Bleakridge mountains, enduring three years of systematic torment. As she lies dying during a brutal labor, she discovers the horrifying truth: her suffering was a twisted "survival game" Leigh paid the village to orchestrate for his sworn sister's amusement. But as her life slips away, a mysterious system voice awakens in her mind, offering her a way out. Her mission is complete, and she can finally abandon this world.

When the apocalypse strikes, my reborn wife, Vienna Wagner, takes drastic action. She expels me from our villa, seizes my carefully hoarded supplies, and moves her male assistant into our home. Convinced the world is ending permanently, she drains our credit, borrows from friends, and takes massive loans from loan sharks to fund her reckless spending. I choose to watch her self-destruction in silence. What Vienna doesn't realize is that this cataclysmic event will actually end in just three days.

In this dark modern romance, tech billionaire Caspian Lockhart views human emotion as a system bug. To perfect his ideal partner, he forces her to wear an agonizing calibration bracelet that shocks her whenever she feels. While his socialite companion Miley remains perfectly in sync, the protagonist is subjected to excruciating neural inhibitors. When the device fatally malfunctions, Caspian dismisses her desperate pleas as a pathetic bid for attention, leaving her to die on the cold floor.

Charity, the exiled Grand Princess, wakes in a toxic slum within a decaying body. She is bound by forced marriage contracts to four powerful men who despise her. With only 59 days to live and an energy core theft frame-up looming, she faces total hostility. To purge the lethal poison in her veins, a survival system tasks her with winning over her husbands. Armed with elite culinary skills and a meat cleaver, she begins her desperate counterattack.

Following the passing of his mother, a decorated pioneer of the National Aeronautics Institute who earned the prestigious Artemis Lunar Commemorative, a dedicated space agency engineer quietly journeys to Newport Harbor City. Traveling alone with her final belongings, he keeps his grief a closely guarded secret. His mission is twofold: to honor his mother's legacy and to finally coordinate his upcoming wedding date with Victoria Kingsley, his wealthy legacy engagement partner.