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Sakai Kousan - Death to All Dragons

Like reading NSFW Sci-Fi web novels? Explore our free online NSFW Sci-Fi novels and find some of the best fiction stories you’ll ever read.
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508
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God Slayer (working title)

This story is about an energetic and carefree alien named Dian exploring the galaxy of Hydrius while meeting unique beings along the way who join him on his adventure. The longer Dian travels the more he realizes the galaxy isn’t all fun and games as Hydrius is being ruled over by beings with imm...

Updated: May 06, 2022
Chapters: 
1
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Ongoing
NSFWActionAdventureComedySci-Fi
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216

Ghoulish x vampiric life

Life on Earth changed forever when the existence of magic became a thing, and with that came the dreaded vampires and their ghoul servants. The world is now overrun by these creatures that spawned out of nowhere with a thing for flesh and blood, many terrorize the world or take up land that onc...

Updated: Mar 22, 2022
Chapters: 
2
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Ongoing
NSFWActionEcchiSci-FiSlice of LifeSupernatural
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990
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An ecstasy in battle~~!

Jacob was always a normal guy, who when war broke out, ended up discovering the unthinkable flavors and pleasures in situations of near-death and despair, becoming addicted to these sensations. In one of his missions, Jaco is shot down and sent to another world! A world where he goes after every ...

Updated: Feb 11, 2022
Chapters: 
12
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Ongoing
NSFWGun ActionIsekaiMechaRomanceSci-Fi
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637
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Vampire and the Detective 1

Arc one: Full Moon Mist A detective begins to work together with a vampire, she just met to take down an organization responsible for terrorizing the city of Torius. Beginning to run out of time after the group announced project callous beauty in which will bring upon ruin to the city and wipe ...

Updated: Aug 31, 2021
Chapters: 
4
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Ongoing
NSFWActionGun ActionSci-Fi
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65
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N3on Noir

Atoyama City 2237. A brutal and violent place. Crime is rife. The police are undermanned and overwhelmed. To make a living here, you need to be willing to do whatever it takes. PI and ex-cop Genji Yamagoto knows that better than anyone. A missing girl. A case that strikes too close to home. H...

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Updated: Aug 26, 2021
Chapters: 
1
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Ongoing
NSFWCrimeGun ActionMartial ArtsSci-FiThriller
FORCES
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2 K
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FORCES

The Iron-Arachnids. Monstrous creatures created through genetic splicing that torment the Earth and it's remaining population. Rust, an elite soldier and mecha pilot releases Mason from his cryogenic slumber to enlist him into finding the root of this crisis. Mason taken back by this new world ha...

Updated: Aug 01, 2021
Chapters: 
21
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Finished
NSFWHorrorMechaPost-ApocalypticSci-FiSupernatural
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36

The Colosseum

Keiran's brother mysteriously disappeared through a bright flashing light when he was younger. Trapped in the inferno of a castle under siege, his only escape is rushing towards a similar light. He finds himself in a cold dark prison cell. His captures are aliens that kidnap lesser beings and for...

Updated: Jul 16, 2021
Chapters: 
1
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Ongoing
NSFWActionAdventureFantasySci-FiSurvival
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161

Lost Ataraxia

Neimad is solitary man who doesn't know how to fit in the world. His life is about to change when he meets Yer, an Anomalous who had scaped of the immigration police, everything goes bad when the terrorist organization Abraxxas attacks the city and they get involved. Now they need to go away with...

Updated: Jul 07, 2021
Chapters: 
1
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Ongoing
NSFWAdventurePhilosophicalSci-Fi
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62

The Witch of Scales

A woman walks aimlessly through the streets of Lewiston Maine when she notices a red buster sword at her feet. What follows is a story of pain and healing an empty heart. Oh, and a lot of fighting monsters.

Updated: Mar 08, 2021
Chapters: 
1
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Ongoing
NSFWActionGirls LoveHaremSci-Fi
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705
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Game of Mass Destruction

Yuzuko's perfect world is disturbed when she is forced to take part in the 30th season of Game of Mass Destruction, a reality tv show where twenty contestants have to fight robots and each other for a chance to become a billionaire. Each robot they destroy gives points, but extra points are rewar...

Updated: Jul 15, 2020
Chapters: 
4
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Ongoing
NSFWGamePsychologicalSci-FiSurvival