Adult 18+ sci-fi books

30997 books

The Memory Tree
The Memory Tree
John R. Little
PG
Apocalypse Unleashed
Apocalypse Unleashed
Mel Odom
PG-13
The Wild
The Wild
David Zindell
R
Tau Ceti: A Ship from Earth
Tau Ceti: A Ship from Earth
George T. Hahn
PG-13
Led to the Slaughter: The Donner Party Werewolves
Led to the Slaughter: The Donner Party Werewolves
Duncan McGeary
PG-13
Psion Alpha
Psion Alpha
Jacob Gowans
PG-13
Forsaken
Forsaken
Kelley Armstrong
PG-13
Rumpel's Prize
Rumpel's Prize
Marie Hall
PG-13
The Beast of Grubbers Nubbin
The Beast of Grubbers Nubbin
Guy Bass
PG-13
Stag Boy
Stag Boy
William Rayner
PG-13
Evacuation
Evacuation
Al K. Line
PG-13
Hand of Mars
Hand of Mars
Glynn Stewart
PG-13
City in the Sky
City in the Sky
Glynn Stewart
PG-13
Unveiled
Unveiled
Jamie Wyman
PG-13
Noah
Noah
Anna Hackett
PG-13
A Little Taste of Poison
A Little Taste of Poison
R. J. Anderson
PG-13
Podkin One-Ear
Podkin One-Ear
Kieran Larwood
PG-13
The Hero's Guide to Being an Outlaw
The Hero's Guide to Being an Outlaw
Christopher Healy
PG-13
Please Don't Tell My Parents I Work for a Supervillain
Please Don't Tell My Parents I Work for a Supervillain
Richard Roberts
PG-13
The Meta-Rise
The Meta-Rise
J. V. Kade
PG-13
Betrayer
Betrayer
C. J. Cherryh
PG-13
Explorer
Explorer
C. J. Cherryh
PG-13
The Night Is Found
The Night Is Found
Kat Kruger
PG-13
Alliance of Equals
Alliance of Equals
Sharon Lee; Steve Miller
PG-13
Yamada Monogatari: The Emperor in Shadow
Yamada Monogatari: The Emperor in Shadow
Richard Parks
PG-13
Mirror Dance
Mirror Dance
Lois McMaster Bujold
PG-13
The Shards of the Oracle
The Shards of the Oracle
Patsy Cameron-Anasti; Tedd Anasti
PG-13
Solomon's Gold
Solomon's Gold
Neal Stephenson
PG
Highlander's Champion
Highlander's Champion
Joanne Wadsworth
PG-13
Styx & Stoned
Styx & Stoned
Boone Brux
PG-13