Most Popular Science Fiction Books of 2025
Discover popular Science Fiction books published in 2025, with reader ratings and new favorites to explore.
Browse publication years
Choose a year or decade. Your genre selection stays the same.
Books in this list
Monster Mercenary Mates #5
Saved by the Alien Mercenary
Science Fiction · Alien Romance · Fated Mates · Monster Romance · Adult
April 29, 2025
Abducted by the Ruthless Royal: Planet Sanos
Taken by the Alien Triton King
Fantasy · Science Fiction · Alien Romance · Fated Mates · Post-Apocalyptic
June 4, 2025
Alien Wolf Tales #3
Alien Charming
Science Fiction · Alien Romance · Fairy Tale Retellings · Adult · Retellings
April 24, 2025
Undying Mercenaries #24
Demon World
Science Fiction · Hard Science Fiction · Space Opera
August 17, 2025
Starship of the Ancients #1
Stranded
Science Fiction · Space Opera
February 7, 2025
Rise of a Legend #1
Trial by Fire
Science Fiction · Romance
January 27, 2025
Cosmic Mates #6
Double Bind
Science Fiction · Romance
March 31, 2025
Above the Black #2
Among Serpents
Fantasy · Science Fiction · Dystopia · Young Adult
January 7, 2025
Alien Wolf Tales #2
Alien Huntsman
Science Fiction · Alien Romance · Fairy Tale Retellings · Monster Romance · Adult
March 20, 2025
Backyard Starship #26
Wolves Among the Stars
Science Fiction · Space Opera
March 23, 2025
Wolfhounds #6
End Game
Science Fiction
August 17, 2025
Monster Mercenary Mates #4
Entangled by the Alien Mercenary
Science Fiction · Alien Romance · Monster Romance · Adult · Romance
March 11, 2025
Backyard Starship #25
Fist of Orion
Science Fiction · Space Opera
January 15, 2025
Serpents of Serant #7
The Naga Princess's Soldier Mate
Science Fiction · Alien Romance · Monster Romance · Naga · Adult
January 14, 2025
Adventures of a Jump Space Accountant #8
A Free Trader
Science Fiction · Space Opera
December 21, 2025
The Maze Cutter #3
The Infinite Glade
Science Fiction · Dystopia · Young Adult
September 9, 2025
P.X #1
No Man’s Space
Science Fiction · Space Opera
October 29, 2025
Hilo #11
The Great Space Iguana
Science Fiction · Middle Grade · Graphic Novels · Adventure · Comics
February 11, 2025
Expeditionary Force #18
Gateway
Science Fiction
April 15, 2025
The Sun Eater #7
Shadows Upon Time
Science Fiction · Space Opera
November 18, 2025
Silver Elite #1
Silver Elite
Fantasy · Science Fiction · Dystopia · Romantasy
May 6, 2025
Shroud
Horror · Science Fiction
February 27, 2025
Madders of Time #1
Hive
Science Fiction · Dystopia · Post-Apocalyptic · Romance
May 6, 2025
Whiteout
Science Fiction · Dystopia · Post-Apocalyptic · Adult · Mystery
February 25, 2025
Cyborgs on Mars
The Lone Cyborg
Science Fiction · Cyborg Romance · Adult · Romance · Western
September 25, 2025
Epic of Atlantis #1
Echoes of Time
Science Fiction · Hard Science Fiction
November 1, 2025
Galaxy Alien Mail Order Brides #8
Solar Bound
Science Fiction · Alien Romance · Romance
September 30, 2025
Galaxy Alien Mail Order Brides #7
Eclipse Bound
Science Fiction · Alien Romance · Paranormal Romance · Adult · Romance
September 16, 2025
Dragon Brides #11
Rook
Fantasy · Science Fiction · Alien Romance · Dragons · Fated Mates
September 1, 2025
Vaxxlian Alien Mail Order Brides #10
Warrin
Science Fiction · Alien Romance · Romance
November 13, 2025
Vaxxlian Alien Mail Order Brides #9
Balarr
Science Fiction · Alien Romance · Paranormal Romance · Adult · Novella
October 20, 2025
Alien Abduction #26
Zinnia and the Zombie
Science Fiction · Alien Romance · Adult · Romance
September 4, 2025
The River Blade
Science Fiction
June 24, 2025
Alien Abduction #24
Xara and the Xenobeast
Science Fiction · Alien Romance · Adult · Romance
July 3, 2025
Galaxy Gladiators Alien Abduction Romance Series #22
Aries
Science Fiction · Alien Romance · Slow Burn Romance · Adult · Romance
July 27, 2025
Dogs of War #3
Bee Speaker
Science Fiction · Post-Apocalyptic
June 3, 2025