R rated sci-fi books

5467 books

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

Silverhair
Silverhair
Stephen Baxter
R
Gravity
Gravity
Tess Gerritsen
R
Broken Sky: Part 5
Broken Sky: Part 5
Chris Wooding
R
The Realm of Secondhand Souls
The Realm of Secondhand Souls
Sandra Shea
R
The Collapsium
The Collapsium
Wil McCarthy
R
The Coming
The Coming
Joe Haldeman
R
Passage
Passage
Connie Willis
R
The House in the High Wood
The House in the High Wood
Jeffrey E. Barlough
R
The Living Blood
The Living Blood
Tananarive Due
R
Children of the Land
Children of the Land
B. A. Chepaitis
R
The Alienist
The Alienist
Caleb Carr
R
The Cleansing
The Cleansing
John D. Harvey
R
Star by Star
Star by Star
Troy Denning
R
One Door Away from Heaven
One Door Away from Heaven
Dean Koontz
R
Kiln People
Kiln People
David Brin
R
Dark Light
Dark Light
Ken MacLeod
R
One Knight Only
One Knight Only
Peter David
R
Crossfire
Crossfire
Nancy Kress
R
The Anvil of the World
The Anvil of the World
Kage Baker
R
The Flood
The Flood
William C. Dietz
R
Jaws of Darkness
Jaws of Darkness
Harry Turtledove
R
Quarantine
Quarantine
Laura J. Burns
R
Surak's Soul
Surak's Soul
J. M. Dillard
R
The Keepers of the Flame
The Keepers of the Flame
Jennifer Armstrong; Nancy Butcher
R
The Yoke: A Romance of the Days When the Lord Redeemed the Children of Israel from the Bondage of Egypt
The Yoke: A Romance of the Days When the Lord Redeemed the Children of Israel from the Bondage of Egypt
Elizabeth Miller (I)
R
Warriors of Ultramar
Warriors of Ultramar
Graham McNeill
R
No Place Like Home
No Place Like Home
K. A. Applegate
R
Nightbringer
Nightbringer
Graham McNeill
R
The Call to Vengeance
The Call to Vengeance
Jude Watson
R
The Warslayer: The Incredibly True Adventures of Vixen the Slayer, The Beginning
The Warslayer: The Incredibly True Adventures of Vixen the Slayer, The Beginning
Rosemary Edghill
R