Adult 18+ sci-fi books

31474 books

Armageddon Run
Armageddon Run
Richard Austin
PG-13
The House of Gaian
The House of Gaian
Anne Bishop
R
Battle Hymn
Battle Hymn
William R. Forstchen
R
Replay
Replay
Ken Grimwood
R
The Hour of Dust and Ashes
The Hour of Dust and Ashes
Kelly Gay
R
The Girl from Tomorrow
The Girl from Tomorrow
Mark Shirrefs; John Thomson
PG-13
Falkenberg's Legions
Falkenberg's Legions
Jerry Pournelle
PG-13
Iron Man 2
Iron Man 2
Alex Irvine
PG-13
Shades of Grey: The Road to High Saffron
Shades of Grey: The Road to High Saffron
Jasper Fforde
PG
The Moon Is a Harsh Mistress
The Moon Is a Harsh Mistress
Robert A. Heinlein
PG-13
Alien Diplomacy
Alien Diplomacy
Gini Koch
PG-13
Huntress
Huntress
L. J. Smith
R
Erling's Word
Erling's Word
Lars Walker
R
The Season of Passage
The Season of Passage
Christopher Pike
PG-13
Prepare
Prepare
Geoffrey Germann
PG-13
Star Healer
Star Healer
James White
PG-13
Cauldron of Fire
Cauldron of Fire
John Schettler
PG-13
Underling Revenge
Underling Revenge
Craig Halloran
PG-13
Together Forever
Together Forever
Lara Bergen
PG-13
Adam M-1
Adam M-1
William C. Anderson
PG-13
Reternity
Reternity
Neal Wooten
PG-13
Radio Active
Radio Active
Nate Ball
PG-13
Fairies in My Fireplace
Fairies in My Fireplace
R. L. Naquin
PG-13
The Final Cut
The Final Cut
Catherine Coulter; J. T. Ellison
PG-13
Dawn
Dawn
Octavia E. Butler
R
Mabel Jones and the Forbidden City
Mabel Jones and the Forbidden City
Will Mabbitt
PG-13
The Toothpaste Genie
The Toothpaste Genie
Frances Duncan
PG-13
Somebody Tell Aunt Tillie We're in Trouble
Somebody Tell Aunt Tillie We're in Trouble
Christiana Miller
PG-13
Mission 5: Subzero
Mission 5: Subzero
Jonny Zucker
PG-13
The Crystal Stair
The Crystal Stair
Grace Chetwin
PG-13