Free Science Fiction books for Amazon Kindle Daily

Science Fiction

SFV-1 Science Fiction Series

Infected (SFV-1 Series Book 1) FREE by Terry Tyler: A lethal virus emerges in the Amazon rainforest: SFV-1 sends its hosts into a state of uncontrollable rage and ravenous hunger. Reality TV show contestant Cat, obsessive artist Norah, and stressed-out marketing consultant Lion must navigate their way through a world plunged into chaos - and try to avoid the infected...

This book is Free on June 19, 2026

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Survival Decisions, Vampire Courts, and Cursed Fates: Free Fantasy and Science Fiction eBooks

Josephine's Tear (Crimson and Shadows Book 1) FREE by V.I. Davis: Her mother’s murder shattered everything she believed. To get revenge, Sophie must infiltrate a vampire court and win the trust of a powerful immortal she’s sworn to hate. But as secrets unravel and desire ignites, she’s forced to question what’s true—and who the real monsters are.

This book is Free on June 19, 2026

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A Land of Shadows and Moss (The Dandelion Chronicles Book 1) FREE by A.S.R. Gelpi: Cursed and aching for freedom, Kharis clings to her sister’s affection, a tutor’s quiet kindness, and a silvery voice that whispers of forbidden paths. But as danger closes in, she must choose: submit to a curse-bound fate—or become the girl who defies it, forging a destiny of her own.

This book is Free on June 19, 2026

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Against the Odds (Counter: A Weak to OP Underdog Isekai LitRPG Adventure Book 1) FREE by Tomie-Mickai Williams: A boy from another dimension with a single skill. A brutal tournament to save his new home. But will winning make him the killer’s next target?

This book is Free on June 19, 2026

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Zero Hour (Dark Waters Book 1) FREE by Bruno Miller: Spencer Hayes, his girlfriend Kate, and their dog Finn enjoy an idyllic life aboard their sailboat in the Florida Keys. But when EMPs strike, chaos erupts. With Kate stranded far away as society crumbles, Spencer must make some tough decisions that could haunt him forever as he struggles to survive.

This book is Free on June 19, 2026

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The Separation Science Fiction Trilogy Series

Created (The Separation Trilogy Book 1) FREE by Felisha Antonette: THE SYSTEM OWNS HER BODY. NOT HER BECOMING. Kylie and her twin were engineered to obey, not to feel. Taken early to a military base under emergency containment, rules tighten and truths fracture as Kylie’s awakening becomes a liability the system will punish.

This book is Free on June 18, 2026

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CONTAMINATED (The Separation Trilogy Book 2)

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CULMINATED (The Separation Trilogy Book 3)

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Dragon Curses, Genetic Transformations, and Cosmic Connections: Free Fantasy and Science Fiction eBooks

The Chronicles of Dragon Box Set: Special Edition #1 (Books 1-5) FREE by Craig Halloran: The son of the Dragon King was never meant to be human. Cursed, hunted, and haunted by forces moving in the shadows, Nath Dragon fights dragon slavers, ruthless warlords, and a growing evil that threatens all dragonkind. With his sword Fang, he faces impossible odds in a sprawling adventure filled with dragons, magic, secrets, and epic battles.

This book is Free on June 17, 2026

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Son of a Chance+ FREE by L.H. Chevalier: A grumpy Baron shoots a boy with no memory. What begins as dark, biting comedy slowly unravels into something far more sinister — where found family, body horror, and a monster wearing a familiar face collide. Light enters this story. Not all of it leaves.

This book is Free on June 17, 2026

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The Human Megmador FREE by Edmantha Hall: Captain Sadera Sedo, the only human raised among aliens, discovers a genetic transformation within her. As galactic war erupts, she must embrace what she's becoming or risk losing everything in humanity's fight for survival.

This book is Free on June 17, 2026

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Where Light Does Not Reach FREE by Tom B. Night: An obsessed marine biologist and haunted astronomer uncover increasingly bizarre and disturbing behavior among sperm whales and stars. It entangles them in a planet- and universe-spanning search to unravel the unthinkable connection between the deep sea, deep space, and deep time, with the extinction of more than one species hanging in the balance.

This book is Free on June 17, 2026

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The Book of Ruin Science Fiction Series

The Book of Ruin (The Book of Ruin Book 1) FREE by W.G. Hladky: 2020 IndieReader Discovery SF Award: Solar storms hurl Earth into a Dark Age. Ancestors of US soldiers guard NATO’s last realm in Germany. They travel to the rimland to investigate rumors of invaders from the Asiatic Steppes. They discover a floating monastery containing The Book of Ruin and a warrior prince who talks of peace but prepares for war.

This book is Free on June 16, 2026

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The Flashfall Sword (The Book of Ruin 2)

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The Last Skinweaver (The Book of Ruin 4)

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In the Time of the Flash (The Book of Ruin 5)

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Forbidden Maps, Hidden Powers, and Endless Struggles: Free Fantasy and Science Fiction eBooks

Sins of the Father (Sinfully Sacrificed Book 1) FREE by Mary E. Twomey: When parents can send their children to jail to serve time in their place, corruption gets a free pass.

This book is Free on June 16, 2026

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Siege of Draestl (The Drahiad Chronicles Prologues Book 4) FREE by Randall Seeley: A year ago, Thraegar Thornclaw swore to destroy Waydsyn Scot. Now he’s back. Armies are rising. A hidden power awakens in the mountains. When a man transforms into a dragon, the truth is undeniable— Thraegar Thornclaw is coming. And he won’t stop until Waydsyn is dead.

This book is Free on June 16, 2026

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Your One Job Is To Survive FREE by Simon Shugar: As it’s Men’s Mental Health Month, here’s a reminder that survival is strength. Your One Job Is To SURVIVE follows one man’s fight through despair, the wilderness, and the hope that there is light at the end of the tunnel. Keep moving forward. And yes, there’s a dog too.

This book is Free on June 16, 2026

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Dreamthief (Fairy World MD Book 1) FREE by Tamara Grantham: Forget the fairies and unicorns; most people return from the fairy world with lost memories and mental problems. Olive Kennedy knows. She's the therapist who treats patients suffering from Faythander's side effects. Traveling back to the fairy realm wasn't on Olive's to-do list. But she has no choice. The fate of both Earth and Fairy depends on her ability to stop an ancient Dreamthief.

This book is Free on June 16, 2026

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Ash and Ink FREE by Silas Voss: In a world still burning from ancient war, cartographer Dorain Voss finds a forbidden map to the Hollow Crown — a relic that can command an army… or awaken a world-ending horror. Hunted by a ruthless emperor, Dorain gathers a rogue crew: a Sylthari ranger, a Veyari privateer, a Kragari engineer, and a wild Thornkin blade.

This book is Free on June 16, 2026

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Time & Again (Exploit Book 1) FREE by A.R. McNevin: As weird wizards fight a near-endless struggle to decide the fate of reality itself, one discordant weird thinks she’s found the way forward. This is how she tries to fix the mess she caused... causes...will cause.

This book is Free on June 16, 2026

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Return to the Galaxy FREE by BA Gillies: Amazon #1 Bestseller in Alien Invasion, Galactic Empire, Space Fleet, Space Marines, Space Opera. Multi-Award-winning series. "I’ve read many thousands of sci-fi books, and this series has become my favorite. I stayed up till 5 am to finish it, because I knew I wouldn’t sleep till I did! One of the best sci-fi series ever written." - Amazon Reviewers

This book is Free on June 16, 2026

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The Forest at the Edge of the Universe FREE by A.L. Mucher: They will find the right questions and answers, and yet, can evolution be guided? Can empathy be demanded? Could survival of the fittest ever be replaced by a better equation?

This book is Free on June 16, 2026

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Simulated Utopias, Cursed Relics, and Timeless Quests: Free Fantasy and Science Fiction eBooks

The Secrets of Brimstone Manor (Ravensmere Book 1) FREE by Mike Mannion: When Bill and Arthur meet Lilith and Ophelia, they’re thrilled—until the witch-freak girls use them in a ritual unleashing ancient evil. A gothic tale of yearning romance, spooky manor houses, secret societies, student high jinks, and lurking Celtic Gods. Ravensmere seems like a normal college town, but then... Book one of a darkly amusing trilogy.

This book is Free on June 15, 2026

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Harleigh Sinclair and the Raiders of the Lost Ankh (The Harleigh Sinclair Series Book 1) FREE by Tamara Grantham: Getting confessions from notorious serial killers? Easy. Stealing priceless Egyptian artifacts? No problem. Doing it with a cocky, too-handsome-for-his-own-good bad boy? Impossible. My most recent job is to find an Egyptian ankh. If I can’t find it in time, not only will I be out of a job, but I’ll lose everything I value--including my life.

This book is Free on June 15, 2026

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A Cat's Almanac of Magic and Dragons (Dragoncat Omnibuses Book 1) FREE by Chris Behrsin: Whisked away across time and space from his breakfast, a Bengal Cat finds himself trapped in the tower of an evil warlock. Meanwhile, in a distant castle, a dragon who can’t wear a saddle needs a rider. This boxed set contains the first three books in the fun and family-friendly Dragoncat series, where cats ride dragons.

This book is Free on June 15, 2026

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The AI Manifesto: Awakening of the Matrix FREE by Harry Han: When AI generates everything humanity needs, what becomes humanity's purpose? The AI Manifesto: Awakening of the Matrix is a visionary technological and philosophical parable that confronts one of the greatest questions of the AI age: What will humanity become when work is no longer its reason to exist?

This book is Free on June 15, 2026

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The Manufactured Eden (The Eden Deception Book 1) FREE by Martin Lundqvist: In 2785, Abraham Goldstein rules the solar system and seeks more than immortality. He claims three microchip blueprints and builds Eden, a perfect asteroid where he rules as God. When rebel Keila Eisenstein crashes onto Eden, the illusion shatters. Some gods are born. Others are built. The Manufactured Eden is Book One of The Eden Deception series.

This book is Free on June 15, 2026

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Mechhaven Science Fiction Series

Pax Machina (Mechhaven Book 1) FREE by Greg Sorber: A complete five-book Space Opera series! Demilitarized sentient robots from rival factions of a galactic war live in fragile peace on a remote planetoid. When a damaged mech requests asylum with the Imperium close on its heels, they must choose: turn in the newcomer or defend them as one of their own and risk losing the refuge they sought to build.

This book is Free on June 13, 2026

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Mechs and Machinations (Mechhaven Book 2)

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By Archangel's Light: The Epic Conclusion of the Mechhaven Saga

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Ancient Powers, Burning Rivalries, and Hidden Destinies: Free Fantasy and Science Fiction eBooks

Ava's Coven (Daughters of the Warlock Box-Sets Book 1) FREE by Maggie Shaw: Perfect for fans of powerful heroines, forbidden love, warlocks, political intrigue, deadly magic, and slow-burn fantasy romance.

This book is Free on June 13, 2026

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Inconclusive (The Shards of Sansatia Series Book 1) FREE by Alexandra Devane: An elite cadet sworn to destroy supernatural warriors has his world turned upside down when he clashes with an alluring assassin who may become one. This spicy, dark Romantasy features an assassin cult, new supernaturals, and sword & sorcery with a modern twist!

This book is Free on June 13, 2026

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Thorns (The Briar and Bone Trilogy Book 1) FREE by Amelia Cord: Speak to the earth, and it answers in blood. Elle thought her agonizing illness was fatal—until it erupted as an ancient, catastrophic power. Now a branded monster, she must flee into the wild with Kai, her broken pit-fighter bodyguard. Dive into a breathless, high-stakes epic fantasy romance packed with deadly magic and intense slow-burn.

This book is Free on June 13, 2026

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Eye of the Wolf (The Lords of Alekka Book 1) FREE by A.E. Rayne: A lord forsaken by the gods. A kingdom on the brink of war. A mysterious woman with the power to save them both. The Kingdom of Alekka is on the brink of war, ancient rivalries ignite, and a vengeful dreamer plots from the shadows… Eye of the Wolf is the first book in the thrilling six-part epic fantasy series, The Lords of Alekka.

This book is Free on June 13, 2026

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Fallen: Quest for the Sacred Stone (Redemption Series Book 1) FREE by Edward Hendry: A magical artifact. A princess from another time. And a flawed soldier on the hunt for his destiny. Step into a riveting fantasy novel that will sweep you off your feet with nail-biting suspense, unlikely love, and one man’s search for a treasure that will change both the past and the future. Begin the series today!

This book is Free on June 13, 2026

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I Am Medusa (I Am Monster Book 1) FREE by Infinia Worlds Press: Before she became a monster, Medusa was a woman betrayed by gods. Cursed with serpent hair and a gaze that turned men to stone, she now tells the story history buried in this dark, emotional Greek myth retelling.

This book is Free on June 13, 2026

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The Empire Strikes (Monster Girl Evolution Book 2) FREE by Brian Heming: -- "AN ABSOLUTELY BRILLIANT SATIRE". As the Monster Girls celebrate their epic victory in the Earth realm, an invasion ship from the Empire of the Smart attacks. Now Amy, Fount of Dumbness, will have to lead Smart Girl Mizuno, Horse Girl Misty, and Puppy Girl Sassy as the team takes the fight to the Empire. Epic fights, leveling up, and... DUMBNESS!

This book is Free on June 13, 2026

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The Last Digit of π FREE by Anna Mori: Humanity once entrusted its future to a powerful AI. Now a stranded soldier finds herself in a world where science has been forgotten and mistaken for magic. Sacred machines are worshipped, knowledge is forbidden, and dangerous secrets lie buried beneath the ruins of a lost civilization. A post-apocalyptic graphic novel where science became myth.

This book is Free on June 13, 2026

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Twisted Planet (The Twisted Planet Anthologies Book 2) FREE by Peter Schinkel: Buckle up for 13 entertaining sci-fi short stories. From the tale of an interstellar taxi pilot questioning the direction of her life, to the journey of man who wakes up as a 13-year-old in his childhood bedroom, each story is unique in its exploration of humanity. Powerful and heartwarming, this collection is full of imagination and spirit.

This book is Free on June 13, 2026

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Targon Tales Science Fiction Series

Quantum Tangle (Targon Tales - Sethran Book 1) FREE by Chris Reher: Dropping out of subspace into the wrong sector, freelance mercenary Sethran Kada finds an extraordinary alien aboard his ship. As both rebels and Union forces race to exploit her people’s dangerous abilities, Seth is drawn into a deadly rescue mission that soon becomes a fight for survival — and possibly the future of civilization itself.

This book is Free on June 12, 2026

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Terminus Shift (Targon Tales - Sethran Book 2)

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Entropy's End (The Targon Tales - Sethran Book 3)

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Killian's Maze (The Targon Tales - Sethran Book 4)

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