R rated sci-fi books

5467 books

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

Neptune Crossing
Neptune Crossing
Jeffrey A. Carver
R
Necrom
Necrom
Mick Farren
R
The Broken Heavens
The Broken Heavens
Kameron Hurley
R
The Light Brigade
The Light Brigade
Kameron Hurley
R
The Blue Place
The Blue Place
Nicola Griffith
R
Thin Air
Thin Air
Richard K. Morgan
R
War Birds
War Birds
R. M. Meluch
R
The Terminal Man
The Terminal Man
Michael Crichton
R
Mach 1: A Story of Planet Ionus
Mach 1: A Story of Planet Ionus
Allen Adler
R
Jack Frost
Jack Frost
Jennifer Baker (1990s)
R
The Moon Chasers
The Moon Chasers
Thomas R. Carey
R
The Dark Lady: A Romance of the Far Future
The Dark Lady: A Romance of the Far Future
Mike Resnick
R
The Hunger and Ecstasy of Vampires
The Hunger and Ecstasy of Vampires
Brian Stableford
R
Transition
Transition
Iain Banks
R
Red Planet: A Colonial Boy on Mars
Red Planet: A Colonial Boy on Mars
Robert A. Heinlein
R
Jihad
Jihad
James Swallow
R
The Quantum Thief
The Quantum Thief
Hannu Rajaniemi
R
The Heroine; or, Adventures of a Fair Romance Reader
The Heroine; or, Adventures of a Fair Romance Reader
Eaton Stannard Barrett
R
The Radio Boys Seek the Lost Atlantis
The Radio Boys Seek the Lost Atlantis
Gerald Breckenridge
R
Mother of Storms
Mother of Storms
Adrian Cole
R
Skeen's Return
Skeen's Return
Jo Clayton
R
With Airship and Submarine: A Tale of Adventure
With Airship and Submarine: A Tale of Adventure
Harry Collingwood
R
A Gathering of Stones
A Gathering of Stones
Jo Clayton
R
Drinker of Souls
Drinker of Souls
Jo Clayton
R
Killing Frost
Killing Frost
Dan L. Blake
R
Ancestral Hungers
Ancestral Hungers
Scott Baker
R
Time Rider
Time Rider
Rickey R. Mallory
R
Martyr
Martyr
Peter David
R
The Shadow of Ararat
The Shadow of Ararat
Thomas Harlan
R
ThiGMOO
ThiGMOO
Eugene Byrne
R