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.

Dogs of S.T.E.A.M.
Dogs of S.T.E.A.M.
Ralph E. Vaughan
PG-13
Doctor Who and the Mutants
Doctor Who and the Mutants
Terrance Dicks
PG-13
A Line in the Sand
A Line in the Sand
K. A. Stewart
PG-13
Darkness Rising
Darkness Rising
K. A. Hambly
PG-13
The Man They Couldn't Arrest
The Man They Couldn't Arrest
Seamark
PG-13
Flight Out of Fancy; an Account of a Brief Detachment, or Capriole, from the Charted Courses of the World; Containing the Writer's Explanation of the Hazards of His Departure, of the Puzzling Rigours of His Detention and of the Fortunate Circumstances of His Return
Flight Out of Fancy; an Account of a Brief Detachment, or Capriole, from the Charted Courses of the World; Containing the Writer's Explanation of the Hazards of His Departure, of the Puzzling Rigours of His Detention and of the Fortunate Circumstances of His Return
uncredited
PG-13
Bond of the Fire
Bond of the Fire
Anthony Fon Eisen
PG-13
Pan on a Rampage
Pan on a Rampage
Salambo Forest
PG-13
Night of the Wolf
Night of the Wolf
Salambo Forest
PG-13
Here
Here
Maryann Forrest
PG-13
Full Fathom Five
Full Fathom Five
Geo. C. Foster
PG-13
Farside
Farside
Patrick Chiles
PG-13
We Band of Brothers
We Band of Brothers
'Seaforth'
PG-13
Dark Whispers
Dark Whispers
Krista D. Ball
PG-13
Bright Star
Bright Star
Robert Louis Stevenson, III
PG-13
Son of the Morning
Son of the Morning
Gilbert Frankau
PG-13
Rated
Rated
Melissa Grey
PG-13
Beetle's Career
Beetle's Career
Ronald Fraser
PG-13
Jupiter in the Chair
Jupiter in the Chair
Ronald Fraser
PG-13
A Visit from Venus
A Visit from Venus
Ronald Fraser
PG-13
The Log of the Ark, by Noah; Hieroglyphics by Ham
The Log of the Ark, by Noah; Hieroglyphics by Ham
Alfred Frueh; I. L. Gordon
PG-13
Test Tube Baby
Test Tube Baby
Sam Fuller
PG-13
The Man Who Spoke Dog
The Man Who Spoke Dog
Charles Fullerton
PG-13
Lightfoot Island
Lightfoot Island
J. C. Furnas
PG-13
Carnack, the Life-Bringer: The Story of a Dawn Man Told by Himself
Carnack, the Life-Bringer: The Story of a Dawn Man Told by Himself
Oliver Marble Gale
PG-13
The Foolish Immortals
The Foolish Immortals
Paul Gallico
PG-13
Lock and Key
Lock and Key
James M. Galloway
PG-13
Space Station Eight
Space Station Eight
Carlton C. Allen
PG-13
Twig
Twig
Elizabeth Orton Jones
PG-13
Talargain
Talargain
Joyce Gard
PG-13