Surprise Castle
/Books/Sci-Fi/Space Opera/Action & Adventure - Space Opera Sci-Fi

Action & Adventure - Space Opera Sci-Fi

Action & Adventure – Fast-paced space opera full of daring missions, epic battles, and interstellar quests.

2,032 Results

2,032 Results

Hunter's Moon
-25%
Hunter's Moon

Hunter's Moon

David Michael Martin
$14.99
$19.95
Hydrogen Sleets: a Montague Portal novel
-15%
Hydrogen Sleets: a Montague Portal novel

Hydrogen Sleets: a Montague Portal novel

Michael Warren Lucas
$10.99
$12.99
The Genius Asylum
-20%
The Genius Asylum

The Genius Asylum

Arlene F. Marks
$11.99
$14.95
Fates of Astraeus
-26%
Fates of Astraeus

Fates of Astraeus

Jeramy Goble
$13.99
$18.95
Fates of Astraeus
-27%
Fates of Astraeus

Fates of Astraeus

Jeramy Goble
$23.99
$32.95
Warp Angel
-25%
Warp Angel

Warp Angel

Stuart Hopen
$14.99
$19.95
Fusion
-27%
Fusion

Fusion

S. Usher Evans
$23.99
$32.99
Alliances
-27%
Alliances

Alliances

S. Usher Evans
$21.99
$29.99
Double Life
-27%
Double Life

Double Life

S. Usher Evans
$23.99
$32.99
Anomalous Thrust
-7%
Anomalous Thrust

Anomalous Thrust

Stephen Hunt
$12.99
$13.99
Dekker's Dozen: The Last Watchmen
-24%
Dekker's Dozen: The Last Watchmen

Dekker's Dozen: The Last Watchmen

Christopher D. Schmitz
$12.99
$16.99
Unknown Place, Unknown Universe: The Worm Hole Colonies: Prelude to the Alien Invasion Thriller
-24%
Unknown Place, Unknown Universe: The Worm Hole Colonies: Prelude to the Alien Invasion Thriller

Unknown Place, Unknown Universe: The Worm Hole Colonies: Prelude to the Alien Invasion Thriller

Lazlo Ferran
$10.99
$14.49
Titan's Fall
-26%
Titan's Fall

Titan's Fall

Zachary Brown
$13.99
$19.00
Starrie
-6%
Starrie

Starrie

Heidi Ruby Miller
$13.99
$14.95
End as a Hero: A Positronic Book
End as a Hero: A Positronic Book

End as a Hero: A Positronic Book

Keith Laumer
$8.99
Wonder Stories Super Pack: A Positronic Book
Wonder Stories Super Pack: A Positronic Book

Wonder Stories Super Pack: A Positronic Book

Fletcher Pratt, Stanley G. Weinbaum, Neil R. Jones
$20.99
Soul's Asylum: (Best mature fantasy books)
-23%
Soul's Asylum: (Best mature fantasy books)

Soul's Asylum: (Best mature fantasy books)

Derek E. Pearson
$11.99
$15.49
Inside Earth - A Positronic Book
Inside Earth - A Positronic Book

Inside Earth - A Positronic Book

Poul Anderson
$10.99
Vulcan's Soul #3: Epiphany
-24%
Vulcan's Soul #3: Epiphany

Vulcan's Soul #3: Epiphany

Josepha Sherman, Susan Shwartz
$18.99
$24.99
Triplanetary
Triplanetary

Triplanetary

Edward E. Smith
$9.99
Invasion
Invasion

Invasion

J. D. Brink
$11.99
Las Colonias del Sistema Solar: Theia
-11%
Las Colonias del Sistema Solar: Theia

Las Colonias del Sistema Solar: Theia

Luis Ángel Fernández de Betoño
$15.99
$17.99
The Voyages of the Solar Queen
The Voyages of the Solar Queen

The Voyages of the Solar Queen

Andre Norton
$13.99
Plague Ship - A Positronic Book
Plague Ship - A Positronic Book

Plague Ship - A Positronic Book

Andre Norton
$12.99
Voodoo Planet: A Positronic Book
Voodoo Planet: A Positronic Book

Voodoo Planet: A Positronic Book

Andre Norton
$10.99
Amazon Seven - Book One: Mission Queen
-7%
Amazon Seven - Book One: Mission Queen

Amazon Seven - Book One: Mission Queen

Alex James
$13.99
$15.00
Tearing Down The Statues
-24%
Tearing Down The Statues

Tearing Down The Statues

Brian Bennudriti
$10.99
$14.50
Battle Earth VII
Battle Earth VII

Battle Earth VII

Nick S. Thomas
$13.99
Milky Way Repo
-20%
Milky Way Repo

Milky Way Repo

M. Prelee
$11.99
$14.95
Games of Astraeus
-27%
Games of Astraeus

Games of Astraeus

Jeramy Goble
$21.99
$29.95
Wisdom
-6%
Wisdom

Wisdom

Patrick Tylee
$28.99
$30.99
Body Holiday - Shadow Players: (Steamy high fantasy books)
-26%
Body Holiday - Shadow Players: (Steamy high fantasy books)

Body Holiday - Shadow Players: (Steamy high fantasy books)

Derek E. Pearson
$12.99
$17.49
Trainee: A Science Fiction Adventure
-13%
Trainee: A Science Fiction Adventure

Trainee: A Science Fiction Adventure

Margaret McGaffey Fisk
$13.99
$15.99
Ares
-27%
Ares

Ares

K. A. Finn
$14.99
$20.50
Alliances
-19%
Alliances

Alliances

S. Usher Evans
$12.99
$15.99
Viking Village
-5%
Viking Village

Viking Village

Steven Cutts
$19.99
$20.99
Sentinels of Tzurac - Zarkwin's Revenge
-26%
Sentinels of Tzurac - Zarkwin's Revenge

Sentinels of Tzurac - Zarkwin's Revenge

James Raven
$14.99
$20.15
Veterans of the Psychic Wars
Veterans of the Psychic Wars

Veterans of the Psychic Wars

Wayne Gerard Trotman
$31.99
Scout's Oath
-6%
Scout's Oath

Scout's Oath

Henry Vogel
$15.99
$16.99
The Lost Planet
-26%
The Lost Planet

The Lost Planet

Rachel Searles
$19.99
$26.99
The Chronicles of Ratha: A Lion Among The Lambs
-12%
The Chronicles of Ratha: A Lion Among The Lambs

The Chronicles of Ratha: A Lion Among The Lambs

Erica Lawson
$15.99
$18.24
Superego
-8%
Superego

Superego

Frank J. Fleming
$11.99
$12.99
Star Runners
-20%
Star Runners

Star Runners

L. E. Thomas
$11.99
$14.99
Bookwright: Book One of the Vanir Trilogy
-5%
Bookwright: Book One of the Vanir Trilogy

Bookwright: Book One of the Vanir Trilogy

George R. Dasher
$16.99
$17.95
Solaris Seethes
-27%
Solaris Seethes

Solaris Seethes

Janet McNulty
$18.99
$25.99
Void All The Way Down
-7%
Void All The Way Down

Void All The Way Down

Stephen Hunt
$12.99
$13.99
Rocket Babe: Fallen Angel
-6%
Rocket Babe: Fallen Angel

Rocket Babe: Fallen Angel

Stephen R. Dearman
$14.99
$15.95
Fantastic Stories Presents the Science Fiction Super Pack #1: A Positronic Book
Fantastic Stories Presents the Science Fiction Super Pack #1: A Positronic Book

Fantastic Stories Presents the Science Fiction Super Pack #1: A Positronic Book

Issac Asimov, Ray Bradbury, Philip K. Dick
$31.99