Adult 18+ sci-fi books

31474 books

Resurrections
Resurrections
Roz Kaveney
PG-13
Alien Shadows
Alien Shadows
Daniel Arenson
PG-13
Benji Franklin: Kid Zillionaire
Benji Franklin: Kid Zillionaire
Raymond Bean
PG-13
Eden
Eden
Phillip Richards
R
The Soft Whisper of Dreams
The Soft Whisper of Dreams
Christina Courtenay
PG-13
The Snowstorm
The Snowstorm
Beryl Netherclift
PG-13
The Highlander's Bargain
The Highlander's Bargain
Barbara Longley
PG-13
March to the Stars
March to the Stars
David Weber; John Ringo
PG-13
Special Ops
Special Ops
W. E. B. Griffin
PG-13
Secrets and Shadows
Secrets and Shadows
Bryan Chick
PG-13
The Killing Kind
The Killing Kind
John Connolly
PG-13
Flotsam and Jetsam: A Home by the Sea
Flotsam and Jetsam: A Home by the Sea
Tanya Landman
PG-13
Let the Wind Rise
Let the Wind Rise
Shannon Messenger
PG-13
Mabel Jones and the Doomsday Book
Mabel Jones and the Doomsday Book
Will Mabbitt
PG-13
Aden
Aden
D. B. Reynolds
PG-13
The Tragickall History of Henry Fowst
The Tragickall History of Henry Fowst
Griselda Heppel
PG-13
Clones vs. Aliens
Clones vs. Aliens
M. E. Castle
PG-13
Alfie Bloom and the Talisman Thief
Alfie Bloom and the Talisman Thief
Gabrielle Kent
PG-13
Forged in Smoke
Forged in Smoke
Trish McCallan
PG-13
The Great Cycle Challenge
The Great Cycle Challenge
Chris Hoy
PG-13
Ami, Child of the Stars
Ami, Child of the Stars
Enrique Barrios
PG
Splashman
Splashman
Lydia Weaver
PG
Space Blazers
Space Blazers
Rick North
PG-13
Keeper of Dreams
Keeper of Dreams
Lynn Armistead McKee
PG
The Ghost of the Lost Mine
The Ghost of the Lost Mine
Jake MacKenzie
R
The Hitch Hiker's Guide to the Galaxy
The Hitch Hiker's Guide to the Galaxy
Douglas Adams
PG
Destined to Love
Destined to Love
Suzanne Elizabeth
PG-13
Genesis
Genesis
Fraser Beath McEwing
PG-13
Fifth Life of the Cat Woman
Fifth Life of the Cat Woman
Kathleen Dexter
PG-13
Robot Dust Bunnies
Robot Dust Bunnies
Isaac Hooke
R