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 Genuine Monster
A Genuine Monster
David Zielinski
R
The Young Astronauts
The Young Astronauts
Rick North
R
Fuse Point
Fuse Point
David North
R
Bad Medicine
Bad Medicine
C. Q. Yarbro
R
Killing Time
Killing Time
Patricia Windsor
R
Helltracks
Helltracks
William F. Nolan
R
Emlyn's Moon
Emlyn's Moon
Jenny Nimmo
R
Huysman's Pets
Huysman's Pets
Kate Wilhelm
R
The Shining Face
The Shining Face
Harold Myra
R
Last Human
Last Human
Doug Naylor
R
Seven Kinds of Death
Seven Kinds of Death
Kate Wilhelm
R
Holy Family
Holy Family
John L. Myers
R
Makoto
Makoto
Kelley Wilde
R
The Flight of the Stoneman's Son
The Flight of the Stoneman's Son
Terence Munsey
R
The Hanging Stones
The Hanging Stones
Manly Wade Wellman
R
A Blackbird in Silver
A Blackbird in Silver
Freda Warrington
R
Monday's Child
Monday's Child
Patricia Wallace
R
The Daughter of the Runes
The Daughter of the Runes
Lindsay Badenoch
R
The Tenant
The Tenant
Charles West
R
Storm Seed
Storm Seed
Janet Morris; Chris Morris
R
A Dance in Blood Velvet
A Dance in Blood Velvet
Freda Warrington
R
Raven
Raven
Adam R. Morley
R
The School of Darkness
The School of Darkness
Manly Wade Wellman
R
High Couch of Silistra
High Couch of Silistra
Janet Morris
R
Bloodfang
Bloodfang
Michael D. Weaver
R
Nightshade
Nightshade
Stanley R. Moore
R
Easy Travel to Other Planets
Easy Travel to Other Planets
Ted Mooney
R
The Weigher
The Weigher
Eric Vinicoff; Marcia Martin
R
Drowntide
Drowntide
Sydney J. Van Scyoc
R
Computer Eye
Computer Eye
A. E. van Vogt
R