Adult 18+ sci-fi books

30997 books

Cursed Bones
Cursed Bones
David A. Wells
PG-13
Abduction
Abduction
Alan Baxter
PG-13
Revelation
Revelation
Kevin Hardman
PG-13
Cross Stitch
Cross Stitch
Amanda James
PG-13
Mindclone
Mindclone
David T. Wolf
PG-13
The Shiva Syndrome
The Shiva Syndrome
Alan Joshua
PG-13
Genius de Milo
Genius de Milo
Russ Colchamiro
PG-13
Reaching Angelica
Reaching Angelica
Peter Riva
PG-13
Lonely Shore
Lonely Shore
Kelly Jensen; Jenn Burke
PG-13
Hunt
Hunt
Leslie Claire Walker
PG-13
Paws and Effect
Paws and Effect
Sofie Kelly
PG-13
Champion
Champion
Anna Hackett
PG-13
Planet of Exile
Planet of Exile
Ursula K. Le Guin
PG-13
The Dispossessed
The Dispossessed
Ursula K. Le Guin
PG-13
The Stream That Stood Still
The Stream That Stood Still
Beverley Nichols
G
Magnificat
Magnificat
Julian May
R
The Persistence of Memory
The Persistence of Memory
Gordon McAlpine
PG-13
The Secret Oceans
The Secret Oceans
Betty Ballantine
PG-13
Jeanne's Journal
Jeanne's Journal
Mario Mercier
PG-13
Injustice Gang and the Deadly Nightshade
Injustice Gang and the Deadly Nightshade
Derek Fridolfs
PG-13
Martin Magnus on Mars
Martin Magnus on Mars
William F. Temple
PG
The Moon Is Feminine
The Moon Is Feminine
Clemence Dane
PG-13
Angels in Savannah: A Modern Day Fantasy
Angels in Savannah: A Modern Day Fantasy
C. J. Condon
R
Where Time Ends
Where Time Ends
Thomas Baird
PG
In Enemy Hands
In Enemy Hands
David Weber
PG-13
The Secret Garden
The Secret Garden
Lois Gladys Leppard
PG-13
Operation: Save the Innocent
Operation: Save the Innocent
Tony Ruggiero
PG-13
Echoes of Honor
Echoes of Honor
David Weber
PG-13
The Painted Man
The Painted Man
Peter V. Brett
R
Battle Smoke
Battle Smoke
Adam Hardy
PG