PG rated sci-fi books

3620 books

Sci-fi books with mild content — safe for most readers. May contain mild peril or fantasy violence but nothing graphic.

The Last of the Fianna
The Last of the Fianna
Michael Scott
PG
Rave On
Rave On
Nigel Robinson
PG
The Rebellers
The Rebellers
Jane Roberts
PG
The Magnificent McInnes
The Magnificent McInnes
Shepherd Mead
PG
Ghostbusters II
Ghostbusters II
Ed Naha
PG
Calling Thunderbirds
Calling Thunderbirds
John W. Jennison
PG
The Microscopic Ones
The Microscopic Ones
R. L. Fanthorpe
PG
Night of the Robots
Night of the Robots
Brian Ball
PG
Time-Echo
Time-Echo
R. L. Fanthorpe; Patricia Fanthorpe
PG
Formula 29X
Formula 29X
R. L. Fanthorpe; Patricia Fanthorpe
PG
Through the Barrier
Through the Barrier
R. L. Fanthorpe; Patricia Fanthorpe
PG
Temptation
Temptation
Suzan Colón
PG
Aldair, Across the Misty Sea
Aldair, Across the Misty Sea
Neal Barrett, Jr.
PG
The World That Never Was
The World That Never Was
R. L. Fanthorpe; Patricia Fanthorpe
PG
Aldair, Master of Ships
Aldair, Master of Ships
Neal Barrett, Jr.
PG
Embers: A Winter Tale
Embers: A Winter Tale
Frank Baker
PG
In Realms Unknown
In Realms Unknown
Robert Bell
PG
Dark Atlantis
Dark Atlantis
David Craigie
PG
Menace from Mercury
Menace from Mercury
R. L. Fanthorpe
PG
Aldair: The Legion of Beasts
Aldair: The Legion of Beasts
Neal Barrett, Jr.
PG
Trans-Mercurian
Trans-Mercurian
Brian Holloway
PG
Beyond Geo
Beyond Geo
Brian Holloway
PG
Red Storm
Red Storm
Brian Holloway
PG
Through Darkest America
Through Darkest America
Neal Barrett, Jr.
PG
Ships of Vero
Ships of Vero
Brian Shaw
PG
Star Winds
Star Winds
Barrington J. Bayley
PG
War of Argos
War of Argos
John Toucan
PG
Vega
Vega
David Arthur Griffiths
PG
Laboratory \"X\"
Laboratory \"X\"
David Arthur Griffiths
PG
Time Machine II
Time Machine II
George Pal; Joe Morhaim
PG