R rated sci-fi books

5467 books

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

Trouble at the Docks
Trouble at the Docks
Jim King
R
Eros at Zenith
Eros at Zenith
Mike Resnick
R
The Very Last War
The Very Last War
W. H. Hawthorne
R
The Germans in Cork: Being the Letters of His Excellency the Baron von Kartoffel (Military Governor of Cork in the Year 1918), and Others
The Germans in Cork: Being the Letters of His Excellency the Baron von Kartoffel (Military Governor of Cork in the Year 1918), and Others
Mary Carbery
R
Crescent City Kills
Crescent City Kills
O'Neil De Noux
R
Siege of Tarr-Hostigos
Siege of Tarr-Hostigos
John F. Carr
R
Vargr-Moon
Vargr-Moon
Bernard King
R
Dark Divide
Dark Divide
Mark Acres
R
The Uske
The Uske
Mary Beth Bass
R
Hardcase
Hardcase
Dan Simmons
R
Memory in Death
Memory in Death
J. D. Robb
R
The Monsters: Mary Shelley and the Curse of Frankenstein
The Monsters: Mary Shelley and the Curse of Frankenstein
Thomas Hoobler; Dorothy Hoobler
R
The Synthetic Man
The Synthetic Man
Theodore Sturgeon
R
Lost Boy Lost Girl
Lost Boy Lost Girl
Peter Straub
R
Janissary Commander: A Science Fiction LitRPG Novel
Janissary Commander: A Science Fiction LitRPG Novel
Fred Hughes
R
Cursed Alien: An Alien Shifter Romance (Alien Wolf Tales)
Cursed Alien: An Alien Shifter Romance (Alien Wolf Tales)
Honey Phillips
R
Point Nemo
Point Nemo
Jeremy Robinson
R
The Blackcollar
The Blackcollar
Timothy Zahn
R
Eros at Nadir
Eros at Nadir
Mike Resnick
R
Planet of Whispers
Planet of Whispers
James Patrick Kelly
R
The Story of the Stone
The Story of the Stone
Barry Hughart
R
Stars in My Pocket Like Grains of Sand
Stars in My Pocket Like Grains of Sand
Samuel R. Delany
R
Memories
Memories
Mike McQuay
R
Heathern
Heathern
Jack Womack
R
Hardwired
Hardwired
Walter Jon Williams
R
Seetee Alert!
Seetee Alert!
E. C. Tubb
R
The Texts of Festival
The Texts of Festival
Mick Farren
R
Gabriel
Gabriel
Lisa Tuttle
R
Domestication
Domestication
Seth Ring
R
A Deal for Zeylum
A Deal for Zeylum
Lynnea Lee
R