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 White Regiment
The White Regiment
John Dalmas
R
The Yngling and the Circle of Power
The Yngling and the Circle of Power
John Dalmas
R
Creature from the Black Lagoon: Time's Black Lagoon
Creature from the Black Lagoon: Time's Black Lagoon
Paul Di Filippo
R
Luna: Moon Rising
Luna: Moon Rising
Ian McDonald
R
The Kalif's War
The Kalif's War
John Dalmas
R
The Bavarian Gate
The Bavarian Gate
John Dalmas
R
Renegades
Renegades
Shaun Hutson
R
Expansion Pack
Expansion Pack
J.N. Chaney
R
Shadows
Shadows
Shaun Hutson
R
Rollercoaster
Rollercoaster
S. K. Epperson
R
Naked in Death
Naked in Death
J. D. Robb
R
Hollywood Hellmouth
Hollywood Hellmouth
Armand Rosamilia; Jack Wallen; Brent Abell; Jay Wilburn
R
Ancient Shores
Ancient Shores
Jack McDevitt
R
The Waterborn
The Waterborn
J. Gregory Keyes
R
Murder in the Solid State
Murder in the Solid State
Wil McCarthy
R
The Pillow Friend
The Pillow Friend
Lisa Tuttle
R
The Tranquillity Alternative
The Tranquillity Alternative
Allen Steele
R
The Stone Within
The Stone Within
David Wingrove
R
Edge of Madness
Edge of Madness
Kyla Stone
R
Deadhead
Deadhead
Shaun Hutson
R
War Year
War Year
Joe Haldeman
R
The Golden Slave
The Golden Slave
Poul Anderson
R
A Rude Awakening
A Rude Awakening
Brian W. Aldiss
R
KillQuest
KillQuest
MAX. DAMAGE;B V Larson
R
The Monster Variations
The Monster Variations
Daniel Kraus
R
Echopraxia
Echopraxia
Peter Watts
R
Wonderfull
Wonderfull
William Neil Scott
R
It Takes Two
It Takes Two
Sheridon Smythe
R
Wolves of the Calla
Wolves of the Calla
Stephen King
R
The Flood
The Flood
Michael McDowell
R