PG-13 rated sci-fi books

24646 books

Sci-fi books with moderate content. May include moderate violence, mild romance, and some darker themes. Best for teens and up.

The Last Divine
The Last Divine
Melanie Jackson
PG-13
The Nothing
The Nothing
Kerry Schafer
PG-13
Lost Planet (Starship of the Ancients Book 2)
Lost Planet (Starship of the Ancients Book 2)
A. K. DuBoff
PG-13
Big, Bad Billionaire
Big, Bad Billionaire
Saranna DeWylde
PG-13
Space Slugs
Space Slugs
Frances Pauli
PG-13
An Oath of the Blood
An Oath of the Blood
Valerie Zambito
PG-13
Double Mobius Sphere: A Story of the Shape of the Universe
Double Mobius Sphere: A Story of the Shape of the Universe
Meg Meirs
PG-13
An Oath of the Kings
An Oath of the Kings
Valerie Zambito
PG-13
Robots Go Wild!
Robots Go Wild!
James Patterson; Chris Grabenstein
PG-13
Catch Me
Catch Me
Pamela Luzier
PG-13
Chemical Burn
Chemical Burn
Quincy J. Allen
PG-13
Warm Springs
Warm Springs
Dean Wesley Smith
PG-13
The Obsession of Michael Black
The Obsession of Michael Black
Adam Johnson (II)
PG-13
Ares' Temptation
Ares' Temptation
Aubrie Dionne
PG-13
Chance Fortune Out of Time
Chance Fortune Out of Time
Shane Berryhill
PG-13
A Margin in Time
A Margin in Time
Laura Hayden
PG-13
Burpstronauts
Burpstronauts
M. D. Payne
PG-13
Desolation
Desolation
Shane Moore
PG-13
Frankie Stein and the New Ghoul at School
Frankie Stein and the New Ghoul at School
Nessi Monstrata
PG-13
Allan Quatermain at the Dawn of Time or, The Adventure of the Star of Wonder
Allan Quatermain at the Dawn of Time or, The Adventure of the Star of Wonder
Thos. Kent Miller
PG-13
Dream Man
Dream Man
Kimberly Dean
PG-13
Case #2: The Missing Zucchini
Case #2: The Missing Zucchini
L. M. Falcone
PG-13
The Golden Crucifix
The Golden Crucifix
John Rae (UK)
PG-13
Z-Volution
Z-Volution
Rick Chesler; David Sakmyster
PG-13
Memory of Morning
Memory of Morning
Susan Sizemore
PG-13
Sammy's Song
Sammy's Song
Susan Sizemore
PG-13
The Finger and the Moon
The Finger and the Moon
Geoffrey Ashe
PG-13
Sins of the Lost
Sins of the Lost
Linda Poitevin
PG-13
Flameborn
Flameborn
Corinna Rogers
PG-13
Blind Temptation
Blind Temptation
Stacy McKitrick
PG-13