Adult 18+ sci-fi books

31474 books

Goddess of Spring
Goddess of Spring
P. C. Cast
R
Ozymandias
Ozymandias
Thomas F. Monteleone
PG-13
The Wrong Rite
The Wrong Rite
Charlotte MacLeod
PG-13
The Caves of Steel
The Caves of Steel
Isaac Asimov
PG
Pegasus in Space
Pegasus in Space
Anne McCaffrey
PG-13
Name of a Shadow
Name of a Shadow
Ann Maxwell
PG-13
My Rotten Stepbrother Ruined Snow White
My Rotten Stepbrother Ruined Snow White
Jerry Mahoney
PG-13
Healer
Healer
F. Paul Wilson
PG-13
A Band of Brothers
A Band of Brothers
William R. Forstchen
R
Pegasus in Flight
Pegasus in Flight
Anne McCaffrey
PG-13
A Deeper Blue
A Deeper Blue
John Ringo
PG-13
The Son of Summer Stars
The Son of Summer Stars
Meredith Ann Pierce
PG-13
The Undead Next Door
The Undead Next Door
Kerrelyn Sparks
R
Linnets and Valerians
Linnets and Valerians
Elizabeth Goudge
G
The Nonborn King
The Nonborn King
Julian May
PG-13
A Killing Frost
A Killing Frost
John Marsden
R
Perfiditas
Perfiditas
Alison Morton
PG-13
Presence of Mind
Presence of Mind
Anthea Fraser
PG-13
Run to the Ark
Run to the Ark
Tom McCaughren
PG-13
Foundation's Edge
Foundation's Edge
Isaac Asimov
PG
The Last Time I Saw Her
The Last Time I Saw Her
Karen Robards
PG-13
Be My Banshee
Be My Banshee
Joyce Lavene; Jim Lavene
PG-13
Earth Zero
Earth Zero
Scott Nicholson
PG-13
The Teachings of Don Juan: A Yaqui Way of Knowledge
The Teachings of Don Juan: A Yaqui Way of Knowledge
Carlos Castaneda
PG-13
Standard Deviation of Death
Standard Deviation of Death
Tina Gower
PG-13
The Restaurant at the End of the Universe
The Restaurant at the End of the Universe
Douglas Adams
PG
Chasers of the Wind
Chasers of the Wind
Alexey Pehov
PG-13
Battle of the Bots
Battle of the Bots
C. J. Richards
R
The Seer
The Seer
G. Clifton Wisler
PG
The Fire of Merlin
The Fire of Merlin
Donna Hosie
PG-13