Adult 18+ sci-fi books

31474 books

Withered + Sere
Withered + Sere
TJ Klune
PG
Betrayals
Betrayals
Kelley Armstrong
PG-13
Black Light Express
Black Light Express
Philip Reeve
PG-13
Feast
Feast
Jeremiah Knight
PG-13
Descended
Descended
Evangeline Anderson
PG-13
The Knock Airport Mystery
The Knock Airport Mystery
Vincent McDonnell
PG-13
Choosers of the Slain
Choosers of the Slain
John Ringo
PG-13
Vorpal Blade
Vorpal Blade
Travis S. Taylor; John Ringo
PG-13
Freddy and the Space Ship
Freddy and the Space Ship
Walter R. Brooks
PG-13
The Palace of Illusions
The Palace of Illusions
Chitra Banerjee Divakaruni
PG-13
The Moonstone Spirit
The Moonstone Spirit
Jean DeWeese
R
Odalisque
Odalisque
Neal Stephenson
PG-13
Charmed
Charmed
Nora Roberts
PG-13
Alex Detail's Rebellion
Alex Detail's Rebellion
Darren Campo
PG-13
Clownwhite: A Comedy of Horrors
Clownwhite: A Comedy of Horrors
Ken Kupstis
PG-13
The Hydrogen Sonata
The Hydrogen Sonata
Iain M. Banks
PG-13
The Daylight War
The Daylight War
Peter V. Brett
R
Jupiter IV
Jupiter IV
Doug Turnbull
PG-13
Shatter
Shatter
Joan Swan
PG-13
Rush
Rush
Joan Swan
PG-13
Ignited
Ignited
Corrine Jackson
PG-13
Bound by Flames
Bound by Flames
Jeaniene Frost
PG-13
Cured
Cured
Bethany Wiggins
PG-13
The Time of the Fireflies
The Time of the Fireflies
Kimberley Griffiths Little
PG-13
All Hallows Night
All Hallows Night
Marie Hall
PG-13
The City of Three Moons
The City of Three Moons
J. M. Bolton
PG-13
Between the Lives
Between the Lives
Jessica Shirvington
PG-13
Sanctuary of Echoes
Sanctuary of Echoes
Evelyn Klebert
PG-13
Tail Spin
Tail Spin
Sienna Mercer
PG-13
Under Different Stars
Under Different Stars
Amy A. Bartol
PG-13