Science Fiction

Monster Hunters and Ruined Worlds: Free Science Fiction and Fantasy eBooks

The Duality of Nature (The Monster of Selkirk Book 1)

The Duality of Nature (The Monster of Selkirk Book 1) FREE by C.E. Clayton: Tallis isn't like everyone else in Kincardine. She never understood why people felt leery in her presence or why her father shunned her. But those worries become distant when feral elves sweep through her town, destroying everything in their path while hissing her name. Now Tallis must prove that not everyone knows a monster when they see one.

This book is Free on March 18, 2026

The Divine Darkness

The Divine Darkness FREE by Lee Mitchell: A growing population has succumbed to their worst fears, some transforming into dreaded fictional monsters—leaving the streets flooded with vampires, werewolves, spontaneously combusting humans, and other horrors—while others have become angels and demons determined to fight in the holy war they believe is upon them.

This book is Free on March 18, 2026

Return Of The Phoenix (Monster Squad Book 1)

Return Of The Phoenix (Monster Squad Book 1) FREE by Heath Stallcup: Humanity has spent its time enjoying blissful ignorance. For centuries, stories of monsters have been handed down through the generations. When creatures of the night proved to be real, the best of America’s military came together to form an elite band of rapid response teams. Their mission: to keep the civilian populace safe from the creatures that go bump in the night.

This book is Free on March 18, 2026

Thief In the Castle (Stars and Bones Book 1)

Thief In the Castle (Stars and Bones Book 1) FREE by Beatrice B. Morgan: When Juniper is caught stealing the king's crown, she unwillingly enters the deadliest con of her life: posing as the crown prince's lover. A magical contract transfers the prince's injuries to her, and Juniper must discover who is trying to kill him before it kills her first.

This book is Free on March 18, 2026

Kissed by Eternity (Immortal Blood Book 1)

Kissed by Eternity (Immortal Blood Book 1) FREE by Stella Wilkinson: When Immortal Highlander, Lachlan, is tasked with moving the Grail, he needs a witch to help him, unfortunately the only one available is Ivy, descended from the woman who broke his heart. Together they must battle both hunters and vampires, as well as their attraction to each other. The perfect blend of fantasy, romance and ancient artifacts.

This book is Free on March 18, 2026

Revenge of The RiverHome Rootabeggas (The Adventures Of Toby Baxter Book 5)

Revenge of The RiverHome Rootabeggas (The Adventures Of Toby Baxter Book 5) FREE by Tim Wright: Join Toby on his fifth Quest to RiverHome as he threads his ways through distracting gauntlets, Rootbeer, anger-inducing odors, and the search for HOPE, all culminating in a showdown back in Para-Dies with himself!

This book is Free on March 18, 2026

Sodenia Stellaris: Ascension (Screaming Suns Book 1)

Sodenia Stellaris: Ascension (Screaming Suns Book 1) FREE by L.A. Robles: The stars dropped a weapon. Humanity gave it a crew. The Acram conquer galaxies, and Earth is next. Humanity’s last hope is Sodenia, a colossal warship and final bastion of resistance. But even a godlike ship may not be enough against an undefeated enemy.

This book is Free on March 18, 2026

Dominion of the Unmade (The Blackstar Chronicles Book 3)

Dominion of the Unmade (The Blackstar Chronicles Book 3) FREE by Johnny Phommachack: The Sun Machine changed everything. Johnny returns to a ruined world where tribes fight for control and whispers call him the Unmade. As Riders, Ironhands, and Red Stone close in, he must decide whether to lead, fight, or become the power everyone fears. Please leave reviews on Amazon if you enjoy the book!

This book is Free on March 18, 2026

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The Book of Ruin Science Fiction Series

The Book of Ruin (The Book of Ruin Book 1)

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. Rangers travel to the rimland to probe 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 March 17, 2026

Other Books in the series

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Ancient Oaths and Night Beasts: Free Science Fiction and Fantasy eBooks

The Oath (Chronicles of the Ordained Book 1)

The Oath (Chronicles of the Ordained Book 1) FREE by Jerri Hines: Marked at birth with the rare Vaellyn magic, Darius is thrust into a world of ancient oaths, shifting loyalties, and rising war. Hidden in the mountains, Althea carries a power that could change everything. As the second moon rises, the demon Asmeodai awakens—and the fate of the Jornada Empire hangs in the balance.

This book is Free on March 17, 2026

The Prince and the Serpent (The Prince and the Serpent Volume 1)

The Prince and the Serpent (The Prince and the Serpent Volume 1) FREE by Amulet Karlow: Prince James of Valenor is deeply loved—by his heroic human father, his elven mother, and the kingdom they rule together. Raised between two cultures, James has never doubted his place in the world… until a single forbidden act binds him to an ancient, living curse.

This book is Free on March 17, 2026

The Witches Catalogue of Wanderlust Essentials (Natural Magic Book 2)

The Witches Catalogue of Wanderlust Essentials (Natural Magic Book 2) FREE by Ciara Blume: Zani, an adventurous, relic-hunting witch, is determined to outrun the future her family designed for her. Her satchel is perpetually packed full of magical cures for common travel disasters. But losing an ancient artifact might be the one catastrophe that her bag of tricks can't fix. Also features: time travel, epic sandwiches & delectable cheese.

This book is Free on March 17, 2026

Shadows of War (The King's Frog Hunter Book 2)

Shadows of War (The King's Frog Hunter Book 2) FREE by Ken Young: Queen Oleen discovers the depth of evil when she is stalked by vicious night beasts, attacked by traitors, and finds invasion plans by neighboring countries. Who can she trust? The mystic Larma, the Stone Daughter, and the King's Hunter join her to battle the forces rising to take control of the kingdom. Success lies in the message of Stone Truth.

This book is Free on March 17, 2026

Soulshine

Soulshine FREE by A.C. Chadwick: In 1978, Beaux escapes to a quiet Arizona town—only to be drawn into Soulshine, an ancient ritual binding women to spirits in dangerously intimate ways. Pleasure turns perilous under the gaze of a powerful deity. Obsession, desire, and the afterlife collide in this dark paranormal horrormance.

This book is Free on March 17, 2026

The Alpha Plague Box Set: The Complete Series (Books 1-3)

The Alpha Plague Box Set: The Complete Series (Books 1-3) FREE by Michael Robertson: Do you have a plan for the apocalypse? Rhys doesn't. But as he watches chaos spill from the Alpha Tower, he knows one thing for sure... He must get to his son before the virus does.

This book is Free on March 17, 2026

Defending Earth (Starfighters Book 1)

Defending Earth (Starfighters Book 1) FREE by Bruce Goldwell & Lace Brunsden: Billy Bronson thought he was just another teenager obsessed with Starfighter, the world’s most advanced virtual reality game. But when he scores high on a time-sensitive mission, he’s invited to Nevada for a tournament-only to discover the truth: the game was a covert training program for Earth's last line of defense. The mission starts now.

This book is Free on March 17, 2026

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: Free Science Fiction and Fantasy eBooks

The Inquisitors' Guild Boxset (Books 1-3)

The Inquisitors' Guild Boxset (Books 1-3) FREE by Dave Dobson: Three epic fantasy detective stories, with swordplay, ancient magic, scheming nobles, high adventure, and a lot of humor. Follow the intrepid investigators of the Inquisitors' Guild as they defend their city. This is a three-book box set, regularly $6.99, which includes three novels: Flames Over Frosthelm, The Outcast Crown, and The Woeling Lass.

This book is Free on March 16, 2026

Silent Order Box Set (Books 1-4)

Silent Order Box Set (Books 1-4) FREE by Jonathan Moeller: An epic science fiction adventure! Follow interstellar privateer Jack March as he battles pirates, sinister cyborgs, and deadly mercenaries in SILENT ORDER: OMNIBUS ONE!

This book is Free on March 16, 2026

All the Queen's Men (The Curious Cases Mysteries Book 2)

All the Queen's Men (The Curious Cases Mysteries Book 2) FREE by Sidney Wainwright: A haunting in Kensington. A beast in the Dales. A conspiracy that threatens the Crown. All in a day’s work for two outcast Special Branch detectives. Book two of the Curious Cases series of Victorian paranormal mystery novellas is out now and free until Tuesday 17th of March, with book one also widely discounted.

This book is Free on March 16, 2026

MKMR: Mecha Kaiju Mars Remastered

MKMR: Mecha Kaiju Mars Remastered FREE by Dalton Lewis: A kaiju dragon demands that everyone on New Chicago take an injection: the injected hear the hive in their mind and begin to support the Overmind. Some join. Others, teen mecha pilots, start a desperate resistance. Giant monsters fight mechanical robots in a massive battlefield on Mars.

This book is Free on March 16, 2026

Aristotle (BIOPUNK Book 1)

Aristotle (BIOPUNK Book 1) FREE by Andy Siege: A brand new, epic, queer, science fiction novel! The Hewmen tribe is steeped in tradition and rigid gender roles. Among them is Aristotle, who harbors a profound secret: he feels like a woman in his heart, yearning to break the chains of societal expectations and embrace his true identity.

This book is Free on March 16, 2026

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Cosmic Powers and Alien Tanks: Free Science Fiction and Fantasy eBooks

Wild Magic (Wild Magic Book 1)

Wild Magic (Wild Magic Book 1) FREE by Odette C. Bell: One contract. Ten books. No escape. To survive, I have to dive headfirst into hell and work for the most powerful predator in Fairbridge City. He’s my captor, my protector, and the only man who can heal my magic. If you love gritty, slow-burn urban fantasy with high stakes and a badass heroine, start this 10-book complete series now!

This book is Free on March 15, 2026

Blend (The Rogues of Teton Book 1)

Blend (The Rogues of Teton Book 1) FREE by Frank Kennedy: All legends begin somewhere. Blue-skinned Arliss returns from prison to a wayward son. As religious zealots target all Blends in Teton's polar megacity, otherworldly forces awaken on the streets. When cosmic powers converge on young Kip, father and son must fight back. The battle for survival just got weird. A saga of dystopian sci-fi and fantasy.

This book is Free on March 15, 2026

Tanks On A Spaceship

Tanks On A Spaceship FREE by Ryan Michael Upton: A drifting colony ship. A desperate crew. Alien tanks waiting inside a rotating world. When first contact turns into a brutal misunderstanding, humans and aliens collide in fire and steel. Tanks on a Spaceship is a fast-paced sci-fi adventure about survival, betrayal, and the chaos of colonizing the unknown.

This book is Free on March 15, 2026

Terra Lux (Terra Book 3)

Terra Lux (Terra Book 3) FREE by Jessahme Wren: The Terra Series is a character-driven young adult science fiction saga about love, exile, and the search for belonging in a complicated universe. Following Phoenix, Sev, Pearla, and Soren as they rebuild their lives after loss and conflict, the series blends adventure, quiet moments of healing, and the power of found family.

This book is Free on March 15, 2026

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The Wake Trilogy Science Fiction Series

Wake of Deception (The Wake Trilogy Book 1)

Wake of Deception (The Wake Trilogy Book 1) FREE by Sasha DeVore: In a world rescued by the Ancient Ones, where dreaming is prohibited, and children with dysphoria are sent to the Flush, a sixteen-year-old dreams of strange beings with a mission - find a Genesis Key and shape the tide of war. He ignores it until a quiet resistance turns into a battle for humanity, and he realizes the Genesis Key will help end it.

This book is Free on March 14, 2026

Other Books in the series

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All the Queen's Men, Aristotle, and MKMR: Free Science Fiction and Fantasy eBooks

All the Queen's Men (The Curious Cases Mysteries Book 2)

All the Queen's Men (The Curious Cases Mysteries Book 2) FREE by Sidney Wainwright: A haunting in Kensington. A beast in the Dales. A conspiracy that threatens the Crown. All in a day’s work for two outcast Special Branch detectives. Book two of the Curious Cases series of Victorian paranormal mystery novellas is out now and free until Tuesday 17th of March, with book one also widely discounted.

This book is Free on March 14, 2026

Aristotle (BIOPUNK Book 1)

Aristotle (BIOPUNK Book 1) FREE by Andy Siege: A brand new, epic, queer, science fiction novel! The Hewmen tribe is steeped in tradition and rigid gender roles. Among them is Aristotle, who harbors a profound secret: he feels like a woman in his heart, yearning to break the chains of societal expectations and embrace his true identity.

This book is Free on March 14, 2026

MKMR: Mecha Kaiju Mars Remastered

MKMR: Mecha Kaiju Mars Remastered FREE by Dalton Lewis: A kaiju dragon demands that everyone on New Chicago take an injection: the injected hear the hive in their mind and begin to support the Overmind. Some join. Others, teen mecha pilots, start a desperate resistance. Giant monsters fight mechanical robots in a massive battlefield on Mars.

This book is Free on March 14, 2026

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Sovereigns of the Collapse Science Fiction Series

Death by Decent Society (Sovereigns of the Collapse Book 1)

Death by Decent Society (Sovereigns of the Collapse Book 1) FREE by Malcolm J. Wardlaw: This is the future we should have seen coming. A world without nations or governments. The greed of the rich is the only law, the rage of the people the only hope. Dive into this award-winning saga of betrayal, escape and ultimate justice.

This book is Free on March 13, 2026

Other Books in the series

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Luminous Realms and Deep-Space Missions: Free Science Fiction and Fantasy eBooks

Blend (The Rogues of Teton Book 1)

Blend (The Rogues of Teton Book 1) FREE by Frank Kennedy: All legends begin somewhere. Blue-skinned Arliss returns from prison to a wayward son. As religious zealots target all Blends in Teton's polar megacity, otherworldly forces awaken on the streets. When cosmic powers converge on young Kip, father and son must fight back. The battle for survival just got weird. A saga of dystopian sci-fi and fantasy.

This book is Free on March 13, 2026

Blisstopia

Blisstopia FREE by Carol W. Berman: When a sleep researcher’s world unravels through her husband’s dementia and her son’s addiction, she begins traveling to Blisstopia—a luminous realm beyond dark matter where souls awaken. Science meets spirituality in this visionary novel of love, loss, and transcendence. Get your copy today and step into the world between worlds.

This book is Free on March 13, 2026

Avidian (The Demon and the Savior Book 1)

Avidian (The Demon and the Savior Book 1) FREE by Ashley R. O'Donovan: I was stolen for my gift. The dead whisper to me, and the Volkovs use me to keep their empire intact. But the ghosts just told me something I wasn't supposed to know. Now I'm caught between a family that will kill to keep their secrets and a man who makes me want to survive long enough to be free. Escape was never this dangerous.

This book is Free on March 13, 2026

The Warden and the Rule (Auscheron Book 1)

The Warden and the Rule (Auscheron Book 1) FREE by S.A. Ervin: To keep demons imprisoned in Nexus, Wardens sacrifice the mightiest rulers of other worlds. Lorne Auscheron arrives on war-torn Rassala to claim his next target—but the war may claim him first. Book One of a plot-driven epic fantasy with magic duels and epic battles.

This book is Free on March 13, 2026

Lumerians (First Contact Book 1)

Lumerians (First Contact Book 1) FREE by Scott Ickes: Humanity Did Not Announce Itself to the Galaxy… But Something Hostile Noticed Anyway. A deep-space mission sparks first contact with alien civilizations that will reshape humanity’s future. FIRST CONTACT: LEMURIANS launches an epic space opera of exploration, sentient AI, and interstellar war. Book One is FREE. Start the series today.

This book is Free on March 13, 2026

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Deadly Dragons and Asteroid Draggers: Free Science Fiction and Fantasy eBooks

Her Sapphire Blade (Guardians of Camelot Book 1)

Her Sapphire Blade (Guardians of Camelot Book 1) FREE by Sarah Biglow: Everything you've heard about Morgan le Fey is a lie. Her magic barely works—until a stranger opens a portal to modern-day Camelot. There, her power ignites, but so does danger. To reclaim her throne, she must battle witches, fae, and dragons in a deadly tournament. Winning could prove her destiny… or cost her everything.

This book is Free on March 12, 2026

Fractured Echoes

Fractured Echoes FREE by J J Noad: Some towns forget. Others erase. People disappear when they notice the wrong things. When reality fractures around Mick Holden, journalist Alice Whittaker uncovers a system designed to erase memory and rewrite truth. Read the first chapter. That’s how most readers got hooked. One chapter. Then another. Then the world starts to shift.

This book is Free on March 12, 2026

Asylum Seekers

Asylum Seekers FREE by Seth Hobbs: Mulholland Falls meets the Epstein Scandal in this bizarre and brutal tale from Seth Hobbs' massive alternative universe. Randal Gladenmoore was a celebrated director with a career to die for...until someone actually did. Now he finds himself in the Ecstasy Bay Mental Asylum, but his story is far from over.

This book is Free on March 12, 2026

Celebrity Grams

Celebrity Grams FREE by Marc S. Silver: In a spooky Hollywood of 1978 Dave Norris gets a job writing lyrics for a singing telegram company called Celebrity Grams. He befriends an ex-boxer who auditions one day to be a Celebrity Grams messenger. The friendship that develops between the two is as heartwarming as it is terrifying.

This book is Free on March 12, 2026

Transitional Zone: The Danger of Living in Someone Else’s Mind

Transitional Zone: The Danger of Living in Someone Else’s Mind FREE by Max Neivandt: Kelly survives a violent bee swarm. But the real change comes later. She discovers she can slip into someone else’s mind — seeing through their eyes, feeling their thoughts, living in their skin. At first, it feels harmless — even thrilling. Until one of her hosts dies.

This book is Free on March 12, 2026

Sector 73 (The Gypsy King Space Adventures Book 1)

Sector 73 (The Gypsy King Space Adventures Book 1) FREE by Gregory C. Randall: In the early part of the 25th century, Buster Strabo, the captain of the spaceship and asteroid dragger Gypsy King, discovered a rock in Sector 73 that was more than humanity bargained for. When he returned twenty years later, would he find answers to humankind’s most elemental questions: Who are we, and where did we come from—or would he open the gates of hell?

This book is Free on March 12, 2026

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