Adult 18+ sci-fi books

30978 books

Seth Carter's Alien Adoption
Seth Carter's Alien Adoption
Fiona Ostler
PG-13
The Night Killers
The Night Killers
Rebecca M. Senese
PG-13
Exodus
Exodus
Fraser Beath McEwing
PG-13
The View Beyond Earth
The View Beyond Earth
Cary Neeper
PG-13
Waking Apollo
Waking Apollo
Rob Gullette
PG-13
The Nemesis Equation
The Nemesis Equation
Kenneth Tam
PG-13
The Alchemaster's Apprentice
The Alchemaster's Apprentice
Optimus Yarnspinner
PG-13
Changing Planets
Changing Planets
Nikki Hohl
PG-13
Bedina's War
Bedina's War
Evelyn Rainey
PG-13
Sired by Stone
Sired by Stone
Andrew Post
PG-13
Guardian Angels: The Setting Moon
Guardian Angels: The Setting Moon
Jessica Wagenfuehr
PG-13
Shrinking Forward
Shrinking Forward
Nathalie M. Leblanc
PG-13
Caliban's War
Caliban's War
James S. A. Corey
PG-13
Tiger Girl
Tiger Girl
Gordon Casserly
PG-13
Siren Song On Dark Shores
Siren Song On Dark Shores
Erin Munday
PG-13
Our Dying Land
Our Dying Land
Edward J. McFadden, III
PG-13
The American Way
The American Way
C. Dennis Moore
PG-13
Deviance of Time
Deviance of Time
Dan O'Brien
PG-13
Aurum: The Golden Planet
Aurum: The Golden Planet
Sharon Joss
PG-13
Abandoned
Abandoned
Paul Dale Anderson
PG-13
Big Daddy's Fast-Past Gadget
Big Daddy's Fast-Past Gadget
C. S. Fuqua
PG-13
Edge of Extinction
Edge of Extinction
Laura Martin
PG-13
The Conveyance
The Conveyance
Brian W. Matthews
PG-13
Huntley Nutley and the Missing Link
Huntley Nutley and the Missing Link
Mary Tannen
PG-13
Home Again
Home Again
Jerry Boyd
PG-13
Of Enemies and Endings
Of Enemies and Endings
Shelby Bach
PG-13
An Unprivate War
An Unprivate War
T. S. Snow
R
The Hackers of Oz
The Hackers of Oz
Tom Mula
R
A Case of Spontaneous Combustion
A Case of Spontaneous Combustion
Stephanie Osborn
PG-13
Haw
Haw
Sean Jackson
PG-13