R rated sci-fi books

5467 books

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

The Bride
The Bride
Vonda N. McIntyre
R
Gust Front
Gust Front
John Ringo
R
Sightlines
Sightlines
Stan Kolodziej
R
Stars and Stripes Triumphant
Stars and Stripes Triumphant
Harry Harrison
R
Casual Rex
Casual Rex
Eric Garcia
R
Pattern
Pattern
K. J. Parker
R
Rules of Ascension
Rules of Ascension
David B. Coe
R
Monument
Monument
Ian Graham
R
The Parasite War
The Parasite War
Timothy R. Sullivan
R
Hero's Trial
Hero's Trial
James Luceno
R
The Siege of Faltara
The Siege of Faltara
Arsen Darnay
R
Shadows Strike
Shadows Strike
Dianne Duvall
R
Army of Darkness
Army of Darkness
Hugh Walker
R
Banners of the Sa' Yen
Banners of the Sa' Yen
B. R. Stateham
R
The Tree of Life
The Tree of Life
Vaughn Heppner
R
The Curse of Arkady
The Curse of Arkady
Emily Drake
R
The Sky Warden and the Sun
The Sky Warden and the Sun
Sean Williams
R
The Paths of the Dead
The Paths of the Dead
Steven Brust, P.J.F.
R
Evolution
Evolution
Stephen Baxter
R
Broken Angels
Broken Angels
Richard Morgan
R
Runes
Runes
Ednah Walters
R
By the Light of the Moon
By the Light of the Moon
Dean Koontz
R
Falling Out of Cars
Falling Out of Cars
Jeff Noon
R
The Praxis
The Praxis
Walter Jon Williams
R
Argonaut
Argonaut
Stanley Schmidt
R
Hope's War
Hope's War
Stephen Chambers
R
Warautumn
Warautumn
Tom Deitz
R
Kaspar's Box
Kaspar's Box
Jack L. Chalker
R
Dimension X
Dimension X
James Luceno
R
Dark Heavens
Dark Heavens
Roger Levy
R