R rated sci-fi books

5467 books

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

Cybernaut
Cybernaut
Ian Quartermaine
R
The Stone Circle
The Stone Circle
Gary Goshgarian
R
The Pleistocene Redemption
The Pleistocene Redemption
Dan Gallagher
R
Star Trek III: The Search for Spock
Star Trek III: The Search for Spock
Vonda N. McIntyre
R
Exit to Reality
Exit to Reality
Edith Forbes
R
Wyrm
Wyrm
Mark Fabi
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Time Station Paris
Time Station Paris
David Evans
R
Where the Ships Die
Where the Ships Die
William C. Dietz
R
Imperial Bounty
Imperial Bounty
William C. Dietz
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Alien Bounty
Alien Bounty
William C. Dietz
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The Final Battle
The Final Battle
William C. Dietz
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Drifter's Run
Drifter's Run
William C. Dietz
R
First Cycle
First Cycle
H. Beam Piper; Michael Kurland
R
Similon
Similon
Kathryn Cave
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Count Scar
Count Scar
C. Dale Brittain; Robert A. Bouchard
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The Dark Blood of Poppies
The Dark Blood of Poppies
Freda Warrington
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A Hymn Before Battle
A Hymn Before Battle
John Ringo
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Project: Maldon
Project: Maldon
Chris Atack
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Nanotime
Nanotime
Bart Kosko
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Erling's Word
Erling's Word
Lars Walker
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Toward the End of Time
Toward the End of Time
John Updike
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Flight to Thlassa Mey
Flight to Thlassa Mey
Dennis McCarty
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Virago
Virago
Karen Marie Christa Minns
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Save the Last Dance for Me
Save the Last Dance for Me
Dyan Sheldon
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Doctor Who and the Revenge of the Cybermen
Doctor Who and the Revenge of the Cybermen
Terrance Dicks
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The Juggler
The Juggler
John Morressy
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The Faceless Tarot
The Faceless Tarot
Jocelyn Almond; Keith Seddon
R
Rainbow Walkers
Rainbow Walkers
Doris Schwerin
R
Requiem
Requiem
Michael Jan Friedman; Kevin Ryan
R
Phallos: Enhanced and Revised Edition
Phallos: Enhanced and Revised Edition
Samuel R. Delany
R