Adult 18+ sci-fi books

30978 books

Sabbath's Gift
Sabbath's Gift
Marilyn Celeste Morris
PG-13
Shrapnel
Shrapnel
Rick Hudson
PG-13
The Aegis Protocol
The Aegis Protocol
Paul Lell
PG-13
A Strange Land
A Strange Land
Jane Barlow
PG-13
The Return to Anaedor
The Return to Anaedor
Kristina Schram
PG-13
The Hubbles and the Robot
The Hubbles and the Robot
Elaine Horseman
PG-13
Dream Parlor
Dream Parlor
Christopher Andrews
PG-13
Maternal Bones
Maternal Bones
Sonnet O'Dell
PG-13
The Desperate and the Dead
The Desperate and the Dead
Eric Leif Davin
PG-13
Will Allen and the Terrible Truth
Will Allen and the Terrible Truth
Jason Edwards
PG-13
Nocturnes and Neon
Nocturnes and Neon
Joseph Armstead
PG-13
Agnith's Promise
Agnith's Promise
Chelsea Quinn Yarbro
PG-13
The Confounding Case of the Climate Crisis
The Confounding Case of the Climate Crisis
Owen R. Liu; Barbara Tinker
PG-13
The Taloned Sire
The Taloned Sire
Dante D'Anthony
PG-13
Children of the Land
Children of the Land
B. A. Chepaitis
R
Lyra's Silence
Lyra's Silence
Rob Gullette
PG-13
Opal Moonbaby and the Summer Secret
Opal Moonbaby and the Summer Secret
Maudie Smith
PG-13
Reckoning
Reckoning
Dean C. Moore
PG-13
Time of Treason
Time of Treason
Susan M. MacDonald
PG-13
A Royal Tea for Royalty
A Royal Tea for Royalty
Ellie Simmonds
PG-13
Emerald of Earth
Emerald of Earth
Guy Stewart
PG-13
Darkened Souls
Darkened Souls
Gary Lee Vincent
PG-13
An Unpolished Gem
An Unpolished Gem
Tonya Adolfson
PG-13
Inca Gold
Inca Gold
Nina Brown Baker
PG-13
The Racing Heart of Fear
The Racing Heart of Fear
B. A. Chepaitis
PG-13
The Uske
The Uske
Mary Beth Bass
R
The Champions of 1943: Scar Tissue
The Champions of 1943: Scar Tissue
Kenneth Tam
PG-13
Gods and Their Makers
Gods and Their Makers
Laurence Housman
PG-13
Jericho Jones and the Slumbering Sentience
Jericho Jones and the Slumbering Sentience
J. Carlysle Ramsey
PG-13
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