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.

Tale of the Toa
Tale of the Toa
Cathy Hapka
PG
The Complete Missing Collection (Boxed Set): Found; Sent; Sabotaged; Torn; Caught; Risked; Revealed; Redeemed (The Missing)
The Complete Missing Collection (Boxed Set): Found; Sent; Sabotaged; Torn; Caught; Risked; Revealed; Redeemed (The Missing)
Margaret Peterson Haddix
PG
Dios Sueno Maquina
Dios Sueno Maquina
Victor Darnell Hadnot
PG
The Hadley Academy for the Improbably Gifted: A Novel
The Hadley Academy for the Improbably Gifted: A Novel
Conor Grennan
PG
Deadly Remission
Deadly Remission
Lawrence F. Grey
PG
Catastrophe Planet
Catastrophe Planet
Keith Laumer
PG
Cold Steele
Cold Steele
Simon Hawke
PG
Four-Day Planet
Four-Day Planet
H. Beam Piper
PG
The Nightmares That Ghosts Have
The Nightmares That Ghosts Have
Louise Arnold
PG
Sisters (a Hyllis Family Story #6)
Sisters (a Hyllis Family Story #6)
Laurence Dahners
PG
The Man from U.N.C.L.E.
The Man from U.N.C.L.E.
Michael Avallone
PG
The Days of Glory
The Days of Glory
Brian Stableford
PG
Visitors
Visitors
R. L. Stine
PG
Norby and the Court Jester
Norby and the Court Jester
Isaac Asimov; Janet Asimov
PG
Big Bang Generation
Big Bang Generation
Gary Russell
PG
Aftershock
Aftershock
Kevin J. Anderson; Kristine Kathryn Rusch
PG
The Party
The Party
Christopher Pike
PG
The Trigger
The Trigger
Michael Kube-McDowell; Arthur C. Clarke
PG
Cycle of Fire
Cycle of Fire
Hal Clement
PG
The Nitrogen Fix
The Nitrogen Fix
Hal Clement
PG
The Robot Brains
The Robot Brains
Sydney J. Bounds
PG
Tarzan and the Forbidden City
Tarzan and the Forbidden City
Edgar Rice Burroughs
PG
The Water Watchers
The Water Watchers
Martha E. Sorenson
PG
The Von Artle Legacy
The Von Artle Legacy
C. D. Moulton
PG
The Computer Connection
The Computer Connection
Alfred Bester
PG
The Sunbird
The Sunbird
Elizabeth E. Wein
PG
The Lost Years
The Lost Years
J. M. Dillard
PG
Promise of Mercy
Promise of Mercy
Kurt D. Springs
PG
The Evertree
The Evertree
Marie Lu
PG
Robert Asprin's Myth-Fits
Robert Asprin's Myth-Fits
Jody Lynn Nye
PG