R rated sci-fi books

5467 books

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

Into the Guns
Into the Guns
William C. Dietz
R
Patriots
Patriots
David Drake
R
The Claus Effect
The Claus Effect
David Nickle; Karl Schroeder
R
The Plague Saint
The Plague Saint
Rita Donovan
R
Mystica Algooat: An Indian Legend and Story of Southern California
Mystica Algooat: An Indian Legend and Story of Southern California
William Russell Morehouse
R
Cloak of War
Cloak of War
Rhonda Mason
R
Journey to Amanah: The Beginning
Journey to Amanah: The Beginning
Colleen K. Snyder
R
Fireboy
Fireboy
Dean Whitlock
R
The Principal
The Principal
M. C. Sumner
R
The Soldiers of Fear
The Soldiers of Fear
Dean Wesley Smith; Kristine Kathryn Rusch
R
The Weaving
The Weaving
Gerald Costlow
R
The Warriors Return
The Warriors Return
A. W. G. Coleman
R
Pacifists' War
Pacifists' War
Lelia Rose Foreman
R
High Above the Waters
High Above the Waters
Gilbert M. Stack
R
Last Siege of Haven
Last Siege of Haven
Ty Drago
R
The Chance Factor
The Chance Factor
Diana G. Gallagher; Martin R. Burke
R
I Dare
I Dare
Sharon Lee; Steve Miller
R
Marduk's Rebellion
Marduk's Rebellion
Jenn Lyons
R
Rugby Warrior
Rugby Warrior
Gerard Siggins
R
Jungle Temple Oracle
Jungle Temple Oracle
Mark Cheverton
R
Kipton and the Ovoid
Kipton and the Ovoid
Charles L. Fontenay
R
Soulfire
Soulfire
Charles Ingrid
R
Fire of God
Fire of God
J. M. Kelly
R
Shrouded
Shrouded
Carol Anne Davis
R
Technolife 2020: A Day in the World of Tomorrow
Technolife 2020: A Day in the World of Tomorrow
Lois H. Gresh
R
Star of Islam
Star of Islam
T. Jackson King
R
Bearing Northeast
Bearing Northeast
Henry Melton
R
Void Stalker
Void Stalker
Aaron Dembski-Bowden
R
Under the Skin
Under the Skin
Michel Faber
R
Locadio's Apprentice
Locadio's Apprentice
Chelsea Quinn Yarbro
R