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.

Oasis
Oasis
Guojing
PG
Red Star Rising
Red Star Rising
Anne McCaffrey
PG
Guardian
Guardian
Joe Haldeman
PG
Against the Tide
Against the Tide
Tui T. Sutherland
PG
Silhouette
Silhouette
Justin Richards
PG
The Blood Cell
The Blood Cell
James Goss
PG
The Journal of Professor Abraham Van Helsing
The Journal of Professor Abraham Van Helsing
Allen C. Kupfer
PG
The Wild Alien Tamer
The Wild Alien Tamer
Mike Resnick
PG
Prelude to Space
Prelude to Space
Arthur C. Clarke
PG
The Time Meddler
The Time Meddler
Nigel Robinson
PG
Overshoot
Overshoot
Mona Clee
PG
Derelict for Trade
Derelict for Trade
Andre Norton; Sherwood Smith
PG
Capture the Flag
Capture the Flag
John Vornholt
PG
Win, Lose, Draw
Win, Lose, Draw
Sara Stamey
PG
The Raven's Warrior
The Raven's Warrior
Vincent Pratchett
PG
When the Moon Hits Your Eye
When the Moon Hits Your Eye
John Scalzi
PG
The Dead of Winter
The Dead of Winter
D. C. Poyer
PG
The Changeling War
The Changeling War
Craig Shaw Gardner
PG
Steel Soldier
Steel Soldier
Cameron Coral
PG
Taken
Taken
Harmony Raines
PG
The Pet
The Pet
Ted Pedersen; Mel Gilden
PG
Elite: Lave Revolution
Elite: Lave Revolution
Allen Stroud
PG
The Bad Guys in Let the Games Begin! (The Bad Guys #17) (17)
The Bad Guys in Let the Games Begin! (The Bad Guys #17) (17)
Aaron Blabey
PG
Dudes, the School Is Haunted!
Dudes, the School Is Haunted!
R. L. Stine
PG
Etiquette & Espionage (Finishing School, 1)
Etiquette & Espionage (Finishing School, 1)
Gail Carriger
PG
The Last Musketeer #2: Traitor's Chase
The Last Musketeer #2: Traitor's Chase
Stuart Gibbs
PG
The Not-So-Jolly Roger #2 (Time Warp Trio)
The Not-So-Jolly Roger #2 (Time Warp Trio)
Jon Scieszka
PG
The Parents (Secret Bible Society)
The Parents (Secret Bible Society)
Chris Brown
PG
House of Dark Shadows: A spooky and thrilling time-adventure perfect for the whole family (Dreamhouse Kings)
House of Dark Shadows: A spooky and thrilling time-adventure perfect for the whole family (Dreamhouse Kings)
Robert Liparulo
PG
Return to the Secret Lake: A children's mystery adventure (Secret Lake Mystery Adventures)
Return to the Secret Lake: A children's mystery adventure (Secret Lake Mystery Adventures)
Karen Inglis
PG