R rated sci-fi books

5467 books

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

A Heroine of the World
A Heroine of the World
Tanith Lee
R
Cybercage
Cybercage
Simon Higgins
R
The Stolguard Incident
The Stolguard Incident
Lyn Alden
R
Demon Night
Demon Night
J. Michael Straczynski
R
Red Shift
Red Shift
Alan Garner
R
Confessor
Confessor
Terry Goodkind
R
Gilead's Curse
Gilead's Curse
Dan Abnett; Nik Vincent
R
Dead Ever After
Dead Ever After
Charlaine Harris
R
Believe Me (Shatter Me: Series One, 13)
Believe Me (Shatter Me: Series One, 13)
Tahereh Mafi
R
Among the Living
Among the Living
Jordan Castillo Price
R
Shades Of War
Shades Of War
Sarah-Jane Lehoux
R
Dark Warning
Dark Warning
Marie-Louise Fitzpatrick
R
Caged Warrior
Caged Warrior
Carrie Lofty
R
Caged Warrior
Caged Warrior
Lindsey Piper
R
A Private Little War
A Private Little War
Jason Sheehan
R
The Death Box
The Death Box
Wilfred McNeilly
R
The Brainiacs
The Brainiacs
Hilary Badger
R
Pulling Up Stakes
Pulling Up Stakes
Peter David
R
I Scream, You Scream!
I Scream, You Scream!
James Preller
R
Split at the Seams
Split at the Seams
Yolanda Sfetsos
R
Helsreach
Helsreach
Aaron Dembski-Bowden
R
Twinkle
Twinkle
S. J. Parkinson
R
Sea of Whispers
Sea of Whispers
Tim Bowler
R
The Secret Battleplane
The Secret Battleplane
Percy F. Westerman
R
Summervale: A Fantasy
Summervale: A Fantasy
James Kenward
R
End of Days: Books 1-7 Box Set
End of Days: Books 1-7 Box Set
Sam J. Fires
R
Storm Warrior
Storm Warrior
Dani Harper
R
Lords of Mars
Lords of Mars
Graham McNeill
R
Cephalox the Cyber Squid
Cephalox the Cyber Squid
Brandon Robshaw
R
Seek the Traitor's Son
Seek the Traitor's Son
Veronica Roth
R