R rated sci-fi books

5467 books

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

Limits of Power
Limits of Power
Elizabeth Moon
R
The Dance
The Dance
Christopher Pike
R
The Immortal
The Immortal
Christopher Pike
R
Geomancer
Geomancer
Ian Irvine
R
The Wooden Sea
The Wooden Sea
Jonathan Carroll
R
Dark Is the Moon
Dark Is the Moon
Ian Irvine
R
City at the End of Time
City at the End of Time
Greg Bear
R
Synners
Synners
Pat Cadigan
R
Murther & Walking Spirits
Murther & Walking Spirits
Robertson Davies
R
Night of the Wolf
Night of the Wolf
Alice Borchardt
R
Beyond the Blue Moon
Beyond the Blue Moon
Simon R. Green
R
Noonshade
Noonshade
James Barclay
R
Helliconia Summer
Helliconia Summer
Brian W. Aldiss
R
Invasion of the Overworld
Invasion of the Overworld
Mark Cheverton
R
The Wolf King
The Wolf King
Alice Borchardt
R
Fortress Draconis
Fortress Draconis
Michael A. Stackpole
R
The Fox Woman
The Fox Woman
Kij Johnson
R
Salt Fish Girl
Salt Fish Girl
Larissa Lai
R
King's Sacrifice
King's Sacrifice
Margaret Weis
R
Rapture
Rapture
Kameron Hurley
R
Zeitgeist
Zeitgeist
Bruce Sterling
R
Ascendant Sun
Ascendant Sun
Catherine Asaro
R
Kirith Kirin
Kirith Kirin
Jim Grimsley
R
Darkness Descending
Darkness Descending
Harry Turtledove
R
The Grand Design
The Grand Design
John Marco
R
The Saints of the Sword
The Saints of the Sword
John Marco
R
Aria of the Sea
Aria of the Sea
Dia Calhoun
R
The Power of UN
The Power of UN
Nancy Etchemendy
R
The One-Armed Queen
The One-Armed Queen
Jane Yolen
R
The Warrior King
The Warrior King
Chris Bunch
R