R rated sci-fi books

5467 books

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

Fluke
Fluke
James Herbert
R
The Laying of the Noone Walker
The Laying of the Noone Walker
Rosalind Ashe
R
Playmates
Playmates
Abigail McDaniels
R
Lingo
Lingo
Jim Menick
R
Fear Itself
Fear Itself
Ric Meyers
R
Twilight Time
Twilight Time
Rick Hautala
R
The Little People
The Little People
MacDonald Harris
R
An Eye for Dark Places
An Eye for Dark Places
Norma Marder
R
The Education of Jennifer Parrish
The Education of Jennifer Parrish
Russ Martin
R
The Darkness Within
The Darkness Within
Shawn MacDonald
R
The Pirates' Mixed-Up Voyage
The Pirates' Mixed-Up Voyage
Margaret Mahy
R
The Wrong Rite
The Wrong Rite
Alisa Craig
R
Druids
Druids
Morgan Llywelyn
R
The Spy Who Drank Blood
The Spy Who Drank Blood
Gordon Linzner
R
Alice Through the Needle's Eye
Alice Through the Needle's Eye
Gilbert Adair
R
Darksiders
Darksiders
Mike Linaker
R
Spirit of the Place
Spirit of the Place
Dennis Hamley
R
Search the Seven Hills
Search the Seven Hills
Barbara Hambly
R
Kala
Kala
Nicholas Luard
R
Slime
Slime
John Halkin
R
Psychohistorical Crisis
Psychohistorical Crisis
Donald Kingsbury
R
Out of Sync
Out of Sync
Isidore Haiblum
R
The Long Habit of Living
The Long Habit of Living
Joe Haldeman
R
Sea of Death
Sea of Death
Gary Gygax
R
Mind Game
Mind Game
Larry R. Leichter
R
Dinosaur Planet
Dinosaur Planet
Stephen Leigh
R
Edge of Infinity
Edge of Infinity
Jeffrey Groteboer
R
Shadow Hill
Shadow Hill
Diane Guest
R
The Wind Gate
The Wind Gate
Philip Gross
R
Abaddon
Abaddon
Bob Larson
R