R rated sci-fi books

5467 books

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

Raveling
Raveling
Peter Moore Smith
R
The Dollhouse That Time Forgot
The Dollhouse That Time Forgot
Mike Ford
R
If I Told You Once
If I Told You Once
Judy Budnitz
R
The Last Harbor
The Last Harbor
George Foy
R
The Order: A sapphic dystopian romance
The Order: A sapphic dystopian romance
TJ O'Shea
R
Manna
Manna
G. Harry Stine
R
Virtual Girl
Virtual Girl
Amy Thomson
R
Emperor
Emperor
William F. Wu
R
Dream Baby
Dream Baby
Bruce McAllister
R
Longeye
Longeye
Sharon Lee; Steve Miller
R
Gypsies
Gypsies
Robert Charles Wilson
R
Assault Troopers
Assault Troopers
Vaughn Heppner
R
Clay's Ark
Clay's Ark
Octavia E. Butler
R
Marauder
Marauder
William F. Wu
R
Rogue
Rogue
Dean Wesley Smith; Kristine Kathryn Rusch
R
Kalifornia
Kalifornia
Marc Laidlaw
R
One Crow Alone
One Crow Alone
S. D. Crockett
R
Worse Than Death
Worse Than Death
Sherry Gottlieb
R
Defense for the Devil
Defense for the Devil
Kate Wilhelm
R
Shadow of the Well of Souls
Shadow of the Well of Souls
Jack L. Chalker
R
Song for a Scarlet Runner
Song for a Scarlet Runner
Julie Hunt
R
Elixir
Elixir
Gary Braver
R
The Children of Hamlin
The Children of Hamlin
Carmen Carter
R
Loose Cannon
Loose Cannon
Dean Ing
R
Incident at Arbuk
Incident at Arbuk
John Gregory Betancourt
R
Dark of the Woods
Dark of the Woods
Dean R. Koontz
R
Ashes of the Sun
Ashes of the Sun
Bruce Holland Rogers
R
The Plains of Passage
The Plains of Passage
Jean M. Auel
R
The Escape
The Escape
Dean Wesley Smith; Kristine Kathryn Rusch
R
Final Assault
Final Assault
Stephen Ames Berry
R