R rated sci-fi books

5467 books

Sci-fi books with mature content including explicit sex, graphic violence, or strong language. For adult readers.

Merlin's Ring
Merlin's Ring
H. Warner Munn
R
The Architect
The Architect
C. S. Garrand
R
Antlands
Antlands
Genevieve Morrissey
R
Horror Wears Blue
Horror Wears Blue
Lin Carter
R
Four Stupid Cupids
Four Stupid Cupids
Gregory Maguire
R
Deathgift
Deathgift
Ann Tonsor Zeddies
R
Once I Caught a Fish Alive
Once I Caught a Fish Alive
Louise Cooper
R
The Cleopatra Crisis
The Cleopatra Crisis
Simon Hawke
R
Bite This
Bite This
Michael Anderle
R
All Times Possible
All Times Possible
Gordon Eklund
R
Portal to Nova Roma: Venice
Portal to Nova Roma: Venice
J.R. Mathews
R
The Way of Dan Box Set: The Way of Dan Series, Books 1-5
The Way of Dan Box Set: The Way of Dan Series, Books 1-5
Franklin Horton
R
The Yiddish Policemen's Union
The Yiddish Policemen's Union
Michael Chabon
R
Futures
Futures
Ken Edwards
R
Terminator 3: Terminator Hunt
Terminator 3: Terminator Hunt
Aaron Allston
R
Our Ecstatic Days
Our Ecstatic Days
Steve Erickson
R
The Mighty Orinoco
The Mighty Orinoco
Jules Verne
R
Darkness Weaves with Many Shades ...
Darkness Weaves with Many Shades ...
Karl Edward Wagner
R
Fell Cargo
Fell Cargo
Dan Abnett
R
Alien: River of Pain: An Audible Original Drama
Alien: River of Pain: An Audible Original Drama
Christopher Golden
R
Swindled! The 1906 Journal of Fitz Morgan
Swindled! The 1906 Journal of Fitz Morgan
Bill Doyle
R
World War: An Apocalypse LitRPG
World War: An Apocalypse LitRPG
Ranyhin1
R
Drawing Down The Moon
Drawing Down The Moon
Joe Clifford Faust
R
Chekhov's Journey
Chekhov's Journey
Ian Watson
R
Once Upon A Valiant Crew
Once Upon A Valiant Crew
Natalie Debrabandere;N D Shar
R
Body and Soul
Body and Soul
Peter David
R
Chapterhouse: Dune
Chapterhouse: Dune
Frank Herbert
R
Cross of Blood
Cross of Blood
K. W. Jeter
R
Vanishing Act
Vanishing Act
Dorothy Nafus Morrison
R
World of Chance
World of Chance
Philip K. Dick
R