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.

Bright's Passage
Bright's Passage
Josh Ritter
PG-13
Oracle of the Dead
Oracle of the Dead
John Maddox Roberts
PG-13
Crystal Bones
Crystal Bones
Deborah Chester
PG-13
Iced!: The 2007 Journal of Nick Fitzmorgan
Iced!: The 2007 Journal of Nick Fitzmorgan
Bill Doyle
PG-13
War Maid's Choice
War Maid's Choice
David Weber
PG-13
Lucy and the Rocket Dog
Lucy and the Rocket Dog
Will Buckingham
PG-13
Tria and the Great Star Rescue
Tria and the Great Star Rescue
Rebecca Rector
PG-13
Cat Striking Back
Cat Striking Back
Shirley Rousseau Murphy
PG-13
Exile
Exile
Cory Daniells
PG-13
Fate of Worlds: Return from the Ringworld
Fate of Worlds: Return from the Ringworld
Larry Niven; Edward M. Lerner
PG-13
The Secret of Spider Motel
The Secret of Spider Motel
Mel Gilden
PG-13
The Mongoliad: Book One
The Mongoliad: Book One
Mark Teppo; Cooper Moo; Neal Stephenson; Nicole Galland; Erik Bear; Greg Bear; Joseph Brassey
PG-13
Secret of the Shadows
Secret of the Shadows
Catherine MacPhail
PG-13
The Wheel of Ice
The Wheel of Ice
Stephen Baxter
PG-13
Secrets of New Forest Academy
Secrets of New Forest Academy
Tyler Whitesides
PG-13
Charming Blue
Charming Blue
Kristine Kathryn Rusch
PG-13
Circle of Heroes
Circle of Heroes
Adam Jay Epstein; Andrew Jacobson
PG-13
The Rapture of the Nerds
The Rapture of the Nerds
Cory Doctorow; Charles Stross
PG-13
Spacemutts: The Hairball of Horror!
Spacemutts: The Hairball of Horror!
Michael Broad
PG-13
Secret of the Pale Lover
Secret of the Pale Lover
Clarissa Ross
PG-13
The Teleportation Accident
The Teleportation Accident
Ned Beauman
PG-13
Free Radicals: A Novel of Utopia and Dystopia
Free Radicals: A Novel of Utopia and Dystopia
Zeke Teflon
PG-13
Death and the Girl Next Door
Death and the Girl Next Door
Darynda Jones
PG-13
How to Seize a Dragon's Jewel
How to Seize a Dragon's Jewel
Cressida Cowell
PG-13
The Secret Crusade
The Secret Crusade
Oliver Bowden
PG-13
The Second Coming
The Second Coming
John Niven
PG-13
Captain Vorpatril's Alliance
Captain Vorpatril's Alliance
Lois McMaster Bujold
PG-13
The Prophet's Secrets
The Prophet's Secrets
Delson Armstrong
PG-13
My Secret Protector
My Secret Protector
Pam Binder
PG-13
Cat in a Vegas Gold Vendetta
Cat in a Vegas Gold Vendetta
Carole Nelson Douglas
PG-13