Best Sci-Fi Novels

Living in a sterile unit, eighteen-year-old protagonist serves as the biological anchor for billionaire Aiden Ziegler. His experimental artificial heart is synced to her abnormally steady pulse; if her rhythm falters, his life ends. Conflict ignites when Aiden’s fiancée, Mandy Sutherland, seizes control and forces the girl onto a treadmill to end her perceived laziness. As her heart rate turns erratic for the first time, Aiden suffers a violent cardiac crash twelve time zones away.

I was Aegis's top operative, betrayed by my fiancé, Hazen, and the very woman I had rescued and mentored, Bianca. They conspired against me, framing me as unstable and jealous. Hazen, the man I was supposed to marry, chose to believe her calculated lies over my raw pain, even after he caught them together. He pushed me, causing a head injury, and then publicly condemned me when I tried to expose Bianca's manipulation. My own partner, my friends, everyone I had saved and fought alongside, turned against me, siding with the "fragile" victim she pretended to be. Hazen's final betrayal was the coldest. He had me tortured, then left me broken in a cell, all to protect Bianca's fabricated innocence. "You are a liability, Echo," he had said, his eyes devoid of love, "a dangerous, unstable liability." I was left with nothing, my spirit shattered, my entire life a lie. The accusations, the abandonment, the sheer injustice of it all-it was a poison I couldn't live with. So I did the only thing I could. I walked into a clandestine clinic and had them erase it all. Now, I am Evelyn, a quiet bookseller in Vermont. I remember nothing. And today, three years later, a man with haunted eyes just walked into my shop and called me by a name I don't know: "Echo?"

Seven years after swapping his human heart for a cyborg's mechanical one, Zachary Gifford is sued for fraud by his sister, Mildred. She believes he traded a defective organ for her million-dollar technology. When Zachary fails to appear in court, Mildred publicly replaces him with his cyborg replica, Orion. Her search for her brother leads to a grim factory where she learns a shocking truth: Zachary died three years ago from a cardiac arrest, leaving nothing behind.

In a city where data is power and truth is a weapon, some secrets are worth killing for. Mara Quinn is a ghost in the system, an underground journalist known only as Cipher, feared by corporations and hunted by those with everything to lose. When she breaches a classified network inside Axiom Industries, she uncovers something no one was meant to see: ORACLE, a predictive AI capable of shaping human behavior on a global scale. She expects retaliation. She doesn't expect Kael Draven. Cold, brilliant, and untouchable, Kael is the architect behind Axiom's empire, and a man who doesn't make threats he can't execute. Instead of silencing Mara, he offers her a choice: work under his watch, or disappear from existence entirely. Trapped inside his glass fortress known as The Spire, Mara is pulled deeper into a world of surveillance, manipulation, and power plays that stretch far beyond anything she imagined. But ORACLE isn't just a tool, it's already been used. Governments have fallen. Empires have shifted. And someone else is pulling the strings. As a rival syndicate closes in and a hidden war erupts across the city, Mara and Kael are forced into an uneasy alliance, one built on intellect, suspicion, and a dangerous, undeniable pull neither of them can ignore. Because in a world where every move is predicted... the only thing more dangerous than control is feeling. And the system is already watching.

Temptations, a world of investigation, mystery, and the supernatural, unfolds through tales set in the Lovecraft County universe, where magic and science intertwine, magical families vie for power like imperial houses, and cosmic entities observe from the veils of reality. This saga, born from intrigues of power, mystery, debauchery, and passionate bodies, is a testament to this. Tsuki, the man with red and white hair, is heir to a cursed lineage, always entangled in passionate affairs between men and women. Whenever his eyes meet, they reveal secrets that should not be seen. His heart is always divided between forbidden passions and ancestral responsibilities. Throughout his life, his dealings, intrigues, and mysteries unfold, amidst love affairs, sex, and passions, as he becomes involved with his witches, each representing aspects of desire and seduction, bringing with them mysteries, intrigues, and dangers, amidst intrigues, love affairs, passionate affairs, darkness, light, and the entanglements of bodies and their moments of passion. From masked balls to blood pacts, from living paintings to endless towers, Tsuki traverses scenarios that blend the cosmic horror of Lovecraft with the political intrigues of Dunes and space planets embroiled in political intrigue, where the magical atmosphere of magical worlds, amidst romances, is enveloped in conspiracy, each passion a prophecy, each choice a risk. Temptations is more than a saga of love and magic. It's a universe of family intrigues, secret pacts, and cosmic entities. While wandering among thrillers and detective cases, amidst the story of a man torn between temptation and destiny, between chaos and passion. In the midst of embarking on a dark, mature, and captivating epic, where each page is an invitation to the abyss-and each temptation is a choice between living and being lost. Tsuki was born under the reflection of this Mirror, his red and white hair a sign of the curse, and his eyes revealing secrets that should not be seen. Still always involved, since he was a child, he was haunted by visions of witches and shadows, and each family saw him as a threat or prophecy, among demons and supernatural beings, in the midst of dark cities, warm beds, and his passions. After traversing masked balls, blood pacts, living paintings, endless towers, and enchanted seas, Tsuki reaches the end of his journey. As he embarks on stories that show the mirror, now broken into nine fragments, revealing its truth: every witch he loved, every intrigue he faced, every temptation that consumed him, was part of the same destiny. In the final reflection, Tsuki sees himself-not as an heir, not as a lover, not as an artist, but as a bridge between worlds. At various moments, he understands that love and desire are not curses, but forces capable of challenging even forgotten gods.

During Lorenzo Alvarez’s coronation as the new mafia boss, he publicly dotes on Isabella Valenti, shielding her from the crude celebrations. However, Isabella’s world shatters when she finds Lorenzo privately entertaining the same dancer he dismissed. Instead of revealing her pregnancy, she witnesses his true, unfaithful nature. Devastated by his deception, Isabella decides to abandon her life with him by accepting an invitation to a secretive, high-stakes scientific experiment.

Elianila, an AI Architect, is part of an elite team tasked with designing a global system meant to prevent threats, manage disasters, and distribute resources to vulnerable regions. After five years of tireless work with her colleagues, she uncovers disturbing anomalies, code-named, X-variables, that flag individuals according to criteria she never programmed. As Elianila digs deeper to understand what the X-variables measure and where their origin, she finds herself in direct conflict with the authorities. Soon, the System marks her and her daughter as threats - targets to be eliminated. With a small band of colleagues and dissidents, Elianila goes on the run, hiding in places beyond the Systems reach. As they evade surveillance, they race against time to warn others, expose the truth, and fight back against the omnipresent authority of the System.

Detective Jack Malone discovers Vesper, a silver-eyed captive, during a biotech lab raid. While fleeing corruption within his own department, a storm traps them in a shelter where Vesper’s experimental enhancements trigger a desperate encounter. However, the rescue is a ruse; Vesper is the mastermind behind the horrors, not a victim. She begins a psychological assault on Jack, using his past to break him. This modern action novel explores a lethal game of betrayal where Jack must choose between revenge and a twisted form of redemption.

After five years of a cold, empty marriage to tech titan Arlo Hatfield, I tricked him into signing our divorce papers, disguised as a grant application for my astrophysics fellowship in Chile. Just as my escape was within reach, I discovered I was pregnant. At the same time, I found Arlo doting on his childhood sweetheart, Brielle, who was faking her own pregnancy to win him over. In the hospital, suffering from a real pregnancy complication, I watched as Arlo rushed to Brielle' s side, completely ignoring my pain. He was so blinded by her lies that he didn't even realize I was carrying his child, assuming I'd just had a minor stomach flu. "Corinne, darling, are you alright?" Brielle cooed, her eyes glinting with victory. "Arlo and I just got the most wonderful news. Our little one is doing so well." He never even looked back at me. I saw the truth then: I was invisible to him, and so was our child. His world was built on power and lies, and there was no place for us in it. So I fled. I took our baby and disappeared to Chile, building a new life among the stars, far from his suffocating shadow. I thought I had finally escaped. Years later, after a catastrophic earthquake, he found me. Bruised, broken, and desperate, he begged for forgiveness. "I didn't know," he pleaded. I looked at the man who had shattered my world and held our child closer. "You didn't care to know," I said, my voice as cold as the space between galaxies. "And now, you've lost everything."

Nathan Gray has spent years as a top-performing salesman to fund his mother's surgery, only to be targeted by a ruthless HR director's new AI surveillance system. This technology tracks every blink and micro-expression, levying absurd fines that drain Nathan’s livelihood. However, the management is unaware that Nathan is the original architect of the system's core code. Driven to the edge, Nathan prepares to reclaim his life and expose the machine’s flaws in this intense sci-fi mystery.

Fallon only wanted a relaxing nature retreat, but instead found herself lost in a dense forest, her limited-edition Balenciaga sneakers ruined by mud and her phone showing zero signal. Before she could even curse her tour guide, a massive boar-monster the size of a truck burst from the bushes to eat her. She thought she was dead, until a giant silver-and-black snake dropped from the canopy and crushed the beast. When Fallon woke up, she was trapped in a primitive cliff cave with a towering, muscular man who had the exact same cold, mismatched slit eyes as the snake. A mechanical system voice echoed in her skull, telling her an anomaly had dragged her to the brutal Beast World. Returning to Earth was impossible. Here, females were incredibly weak commodities, and the deadly "wind season" was fast approaching. "Eat, or you will die. The wind season comes." The snake-man, Justice, shoved a charred, dripping slab of raw bloody meat into her face. Fallon sobbed in despair. She was trapped in a savage dimension with no modern comforts, abandoned by a glitchy system that only gave her a tiny, empty pocket space in her mind. Worse, she realized this terrifying apex predator had absolutely zero food stored for the freezing winter. But when she instinctively clutched her grandmother's silver necklace, her tiny pocket space suddenly upgraded into a massive, room-sized storage dimension. Looking at the awkward but fiercely protective snake-man who promised to hunt for her, Fallon wiped her tears. She had the ultimate storage cheat, and he had the muscle. It was time to conquer the Beast World.

After Kendrick Fisher sacrifices everything to join her at college, his girlfriend brutally dumps him, mocking his poverty and terminal heart condition. Four years later, Kendrick has transformed into a billionaire AI tycoon, while his ex-girlfriend lives in squalor, exploited by a gambling addict. As Kendrick makes a triumphant return to the city, her artificial heart finally fails. Their paths cross one last time when his celebration and her funeral occur at the same hotel.

After dying in a suspicious lab explosion, River Lowell wakes up on the morning of the National Robotics Championship. In his past life, his rival Adrian Cross stole his designs and his girlfriend, Lila Hart, signed his DNR. To prevent his murder and expose Adrian’s theft, River destroys his robot and withdraws. As the public mocks him, River must navigate a dangerous web of corporate espionage and betrayal to reclaim his reputation in this sci-fi mystery.

On my birthday, he fake daughter collapsed, body convulsing. "Sister, why? Just 'cause my mate gave me a ring?" My parents turned on me instantly. My mate, consumed by rage, roared I was beyond redemption and, without hesitation, decided to send me to the dreaded biological base, convinced I'd learn my lesson. At the base, daily torment became my reality. Needle marks littered my arms and thighs, fresh wounds over old.I was a caged, howling beast, drowning in pain and despair. When my parents finally came for me, I was broken, driven mad by the ceaseless torture. I clutched an empty syringe, head cocked, wearing a terrifying smile. "Sorry? You think that can undo my suffering?" Amid the chaos, I relished their cries and despair. This was just the start...

Faith was the Vanguard Base’s top researcher until her best friend, Ruby, used mind-reading to steal her life’s work and frame her for horrific crimes. After being thrown to zombies, Faith wakes up on the day the betrayal began. Armed with knowledge of the future, she refuses to calculate the complex formulas Ruby once pilfered from her mind. As the base looks to their supposed savior, Faith begins a subtle game of retribution in this high-stakes action adventure.

After years apart, a woman awaits her fiancé's return from a dangerous deep-space mission, only to discover he has brought back a mysterious new wife. In a future where interstellar travel and combat define survival, she must navigate this devastating betrayal while uncovering the truth behind his secret marriage. As cosmic tensions rise and hidden agendas surface, she is forced to fight for her dignity and place in a world where love and loyalty are as volatile as the stars.

In a future where technology governs every aspect of existence, Elara’s life shatters when her fiancé is accused of a high-stakes digital felony. As she investigates the shadows of their synthetic society, she uncovers a web of corporate deceit and hidden motives. Elara must navigate a dangerous path between her lingering loyalty and the pursuit of truth. Every discovery brings her closer to a shocking reality that could finally grant her freedom.

After a life of academic success and a happy marriage to Dario Bivona, Livia is thrust back in time. Her sister Regina, who previously died in poverty after being cast out by a mafia Don, uses this second chance to steal Livia’s peaceful future. By manipulating their family and Dario, Regina forces Livia to take her place as the principessa of Etalia’s most dangerous crime syndicate. Livia must now navigate a high-stakes world of AI and underworld violence.

For three years, everyone viewed the wife of a cold billionaire as a submissive doormat who tolerated his infidelity and neglect. However, the truth is far more complex. On the day of their divorce, as her husband desperately pleads for her to stay, a sudden power outage causes her to collapse, exposing a charging port on her neck. While he reels from the discovery that he was living with an AI, the real woman is relaxing in the Maldives, ready to initiate a factory reset on her mechanical proxy.

While enduring a harsh lecture from the notoriously cold CEO Veronica Starling, an employee receives a baffling text message that defies logic. The sender is the untouchable billionaire herself, but the content is an affectionate plea for a kiss from her husband. Most shocking of all is the timestamp, which marks the message as being sent five years in the future. This mystery forces a shift in their professional dynamic as the truth behind this temporal anomaly begins to surface.

I woke up strapped to a freezing operating table, a gaping hole crudely sutured over my heart. Joi Rocha, my supposed guardian, stood nearby holding a glowing vial that contained my freshly extracted Phoenix gene sequence. "Don't blame me, sweetheart. Gayla's body is just too weak. She needs this sequence more than you do." In my past life, I endured years of illegal biological harvests for this family. My fiancé Brennon watched with cold eyes as they ripped the gene from my chest, while the elite academy students filmed and mocked my bleeding, broken body. They stripped me of my status, drained every drop of my worth, and left me to die in a freezing tomb just so their precious fake daughter could thrive. Until my dying breath, I didn't understand. I had given them my absolute loyalty, so why was I treated like disposable medical waste? Why did my life mean absolutely nothing to them? But opening my eyes again, I realized I had returned to the exact day they stole my core. This time, I didn't cry or beg. I stared dead into Joi's eyes and smiled. I detonated the residual energy in my chest to incinerate Gayla's stolen sequence, faked my own flatline, and injected myself with a hidden dark matter drive to completely rewrite my DNA. If they wanted to play God with my life, I was going to burn their entire world to ash.

My ten-year marriage was a transactional lie, built on an astrologer's prophecy that my chart would ensure my husband's success. But on my birthday, he abandoned me to take his young intern, Anais, to the sci-fi festival I' d dreamed of for years. He came home smelling of her sweet matcha perfume, a green hair tie and a festival souvenir tucked in his pocket. He called me dramatic, said she was "fragile" and needed him. At our anniversary gala, meant to be his grand apology, I watched him kiss her passionately on the terrace during the fireworks display. He was still whispering promises in my ear, completely oblivious. That night, I left him the divorce papers and my wedding ring. But he tracked me down on my solo trip to Utah, finding me with my new guide, Casey. He punched Casey, then accused me of cheating. "You belong to me!" he roared. Just then, his phone rang. It was a video call from a hysterical Anais. "Howard, I'm pregnant! My parents are furious! They're demanding we get married immediately!"

The first sign I was going to die wasn't the blizzard. It wasn't the bone-deep cold. It was the look in my fiancé's eyes when he told me he had given my life's work-our only guarantee of survival-to another woman. "Kelsi was freezing," he said, as if I were being unreasonable. "You're the expert, you can handle it." He then took my satellite phone, shoved me into a hastily dug snow pit, and left me to die. His new girlfriend, Kelsi, appeared, wrapped snugly in my shimmering smart blanket. She smiled as she used my own ice axe to slash my suit, my last layer of protection against the storm. "Stop being so dramatic," he told me, his voice full of contempt as I lay there freezing to death. They thought they had taken everything. They thought they had won. But they didn't know about the secret emergency beacon I had stitched into my sleeve. And with my last ounce of strength, I activated it.

On her wedding day, Ivy is dragged away in handcuffs while her fiancé, Aaron, watches coldly and her bridesmaid, Shirley, smiles in triumph. Sentenced to four years for a crime she didn't commit, Ivy loses everything: her father, her career, and her health. When she is finally released, broken and lost, an unexpected savior appears. Russell, Shirley's powerful stepbrother, offers Ivy a lifeline, nursing her back to life and promising her a future. But behind his devoted gaze lies a sickening secret. Russell didn't rescue Ivy—he broke her. To make her entirely dependent on him, he orchestrated her downfall from the very beginning. Caught between the fiancé who abandoned her and the monster claiming to love her, how will Ivy survive when her savior is her worst enemy?