R rated sci-fi books

5467 books

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

City of Phants
City of Phants
Isaac Hooke
R
Robot Dust Bunnies
Robot Dust Bunnies
Isaac Hooke
R
Psylicon Beach
Psylicon Beach
Philip Gross
R
Retief
Retief
Keith Laumer
R
Salvation
Salvation
Christopher Golden
R
Malice
Malice
John Gwynne
R
Folk'd Up
Folk'd Up
Laurence Donaghy
R
Space Station Ice-3
Space Station Ice-3
Bruce Coville
R
System Crash
System Crash
Graham Marks
R
Student Exchange
Student Exchange
M. T. Coffin
R
The Darkness Before the Dawn
The Darkness Before the Dawn
Ryan Hughes
R
My Friend Leonard
My Friend Leonard
James Frey
R
Breaking Up
Breaking Up
Nicholas Pine
R
The New Kid
The New Kid
Nicholas Pine
R
The Children's Crusade
The Children's Crusade
Carla Jablonski
R
The Wide World's End
The Wide World's End
James Enge
R
Godsgrave
Godsgrave
Jay Kristoff
R
The Black Tide
The Black Tide
Hammond Innes
R
The Day After Tomorrow
The Day After Tomorrow
Whitley Strieber
R
The Dargonesti
The Dargonesti
Tonya Cook; Paul B. Thompson
R
Salt & Stone
Salt & Stone
Victoria Scott
R
The Eye of Night
The Eye of Night
Pauline J. Alama
R
The Feet of a Snake
The Feet of a Snake
Barry Chubin
R
The Fifth Dawn
The Fifth Dawn
Cory J. Herndon
R
The Forever Bride
The Forever Bride
Judith O'Brien
R
The Forever Drug
The Forever Drug
Lisa Smedman
R
A Dance of Chaos
A Dance of Chaos
David Dalglish
R
The A-Word
The A-Word
Joy Preble
R
The Green Gods
The Green Gods
Nathalie Henneberg; Charles Henneberg
R
The Illusionist
The Illusionist
Dinitia Smith
R