R rated sci-fi books

5467 books

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

Forge of Darkness
Forge of Darkness
Steven Erikson
R
Warrior's Woman
Warrior's Woman
Johanna Lindsey
R
Lord of the Vampires
Lord of the Vampires
Gena Showalter
R
City of Last Chances
City of Last Chances
Adrian Tchaikovsky
R
The Urth of the New Sun
The Urth of the New Sun
Gene Wolfe
R
Dark Currents
Dark Currents
Jacqueline Carey
R
Mairelon the Magician
Mairelon the Magician
Patricia C. Wrede
R
Warrior Witch
Warrior Witch
Danielle L. Jensen
R
The First Battle
The First Battle
Erin Hunter
R
Market Forces
Market Forces
Richard K. Morgan
R
The Confessions of Max Tivoli
The Confessions of Max Tivoli
Andrew Sean Greer
R
Ammonite
Ammonite
Nicola Griffith
R
Obsidian Prey
Obsidian Prey
Jayne Ann Krentz
R
Camouflage
Camouflage
Joe Haldeman
R
Behind the Attic Wall
Behind the Attic Wall
Sylvia Cassedy
R
Wolf in Shadow
Wolf in Shadow
David A. Gemmell
R
How Few Remain
How Few Remain
Harry Turtledove
R
Heart of a Warrior
Heart of a Warrior
Johanna Lindsey
R
Ascendance
Ascendance
R. A. Salvatore
R
China Mountain Zhang
China Mountain Zhang
Maureen F. McHugh
R
Of Love and Evil
Of Love and Evil
Anne Rice
R
Once ...
Once ...
James Herbert
R
Fall of Light
Fall of Light
Steven Erikson
R
Wolf Queen
Wolf Queen
Tanith Lee
R
Vampire of the Mists
Vampire of the Mists
Christie Golden
R
The Golden Age
The Golden Age
John C. Wright
R
Breakthroughs
Breakthroughs
Harry Turtledove
R
The More I See You
The More I See You
Lynn Kurland
R
Legacy of Blood
Legacy of Blood
Richard A. Knaak
R
The Sandman and the War of Dreams
The Sandman and the War of Dreams
William Joyce
R