Adult 18+ sci-fi books

30978 books

High School Heroes IV: Hero's Burden
High School Heroes IV: Hero's Burden
James Mascia
PG-13
Nemesis
Nemesis
John Schettler
PG-13
The Sepia Siren Killer
The Sepia Siren Killer
Richard A. Lupoff
PG
The X-Troop
The X-Troop
Clay Davis
PG-13
The Wind, the Road and the Way
The Wind, the Road and the Way
Jenny L. Cote
PG-13
Itachi's Story [Midnight]
Itachi's Story [Midnight]
Takashi Yano
PG-13
Skin Game
Skin Game
Jim Butcher
PG-13
Willa in Jewel Forest
Willa in Jewel Forest
Poppy Collins
PG-13
First Against the Wall
First Against the Wall
Manna Francis
PG-13
Luminescence
Luminescence
Braden Bell
PG-13
Best Cake for a Best Friend
Best Cake for a Best Friend
Ellie Simmonds
PG-13
True Sight
True Sight
Terron James
PG-13
The Seeker Star
The Seeker Star
Susan Jane Bigelow
PG-13
Foresight
Foresight
Graham Storrs
PG-13
Last Stand on the Ocean Shore
Last Stand on the Ocean Shore
Mark Cheverton
PG-13
Companions in Ruin
Companions in Ruin
Mark Allan Gunnells
PG-13
On Basilisk Station
On Basilisk Station
David Weber
PG-13
A Storm of Swords
A Storm of Swords
George R. R. Martin
R
The Day the Televisions Stopped
The Day the Televisions Stopped
S. B. Sutton
PG-13
Encounter at Atlantis
Encounter at Atlantis
Travis McBee
PG-13
Time Changer
Time Changer
Rich Christiano; Greg Mitchell
R
Morning Star
Morning Star
Pierce Brown
R
Written in My Own Heart's Blood
Written in My Own Heart's Blood
Diana Gabaldon
PG-13
Believe
Believe
Beth Bracken; Kay Fraser
PG-13
Stuntboy
Stuntboy
Ciaran Murtagh
PG-13
Sentience
Sentience
Dean C. Moore
PG-13
Circumnavigation of Shatterworld
Circumnavigation of Shatterworld
Lelia Rose Foreman
PG-13
Straggletaggle
Straggletaggle
J. M. McDermott
PG-13
The Original Hitchhiker Radio Scripts
The Original Hitchhiker Radio Scripts
Douglas Adams
PG
Guns and Attitude
Guns and Attitude
Michael Anderle
PG-13