Most Popular Science Fiction Books of 2025
Discover popular Science Fiction books published in 2025, with reader ratings and new favorites to explore.
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Books in this list
The Gemini Conflict: Super Short Super Hero Romances #9
In and Out
Science Fiction · Fated Mates · Paranormal Romance · Superheroes · Adult
December 15, 2025
The Gemini Conflict: Super Short Super Hero Romances #10
Super Charged
Science Fiction · Fated Mates · Paranormal Romance · Superheroes · Adult
December 29, 2025
The Merge
Science Fiction · Dystopia
November 11, 2025
Hole in the Sky
Science Fiction
October 7, 2025
The Monster’s Daughter
Science Fiction · Monster Romance · Romance
November 13, 2025
The Warlord's Secret Heir
Science Fiction · Romance
November 20, 2025
Claimed by the Alien Don
Science Fiction · Alien Romance · Adult · Romance
November 13, 2025
Alien Soldier's Heir
Science Fiction · Alien Romance · Romance
November 20, 2025
Bone Spur Baby Daddy
Science Fiction · Alien Romance · Romance
November 27, 2025
Marked by the Reaper Prince
Science Fiction · Monster Romance · Romance
December 11, 2025
War Daddy's Secret Baby
Science Fiction · Alien Romance · Romance
December 11, 2025
Alien Soldier’s Secret Heir
Science Fiction · Alien Romance · Romance
December 26, 2025
Alien Warrior’s Got Rizz
Science Fiction · Alien Romance · Forced Proximity · Romance
December 26, 2025
The Will'ven't Bin
Horror · Science Fiction · War & Military · Alternate History · Historical Fiction
October 15, 2025
Lightbreakers
Science Fiction
November 4, 2025
Xaal Regency Alien Romance #1
The Dreamer and the Deep Space Warrior
Science Fiction · Alien Romance · Romance
September 30, 2025
Sci-Fi Holiday Specials
Spy You Next Year
Science Fiction · Alien Romance · Fated Mates · Adult · New Year's Fiction
December 27, 2025
Spaceship Mechanic #1
Boltguns and Duct Tape
Science Fiction · Space Opera
September 11, 2025
Wanderers #2
The Girl Who Fought Back
Science Fiction
December 4, 2025
Wanderers #1
The Girl Who Dropped In
Science Fiction
August 18, 2025
You Weren't Meant to Be Human
Horror · Science Fiction
September 9, 2025
Local Heavens
Science Fiction · Retellings
October 14, 2025
Saltcrop
Science Fiction · Dystopia
September 30, 2025
Manaforged Robotics #1
Planetfall
Fantasy · Science Fiction · Steampunk
December 16, 2025
Holiday Heartmates #1
Unwrapped by the Alien
Science Fiction · Alien Romance · Fated Mates · HEA Ending · Adult
November 23, 2025
Cosmic Connections Cruise #2
Adrift!
Science Fiction · Alien Romance · Romance
October 10, 2025
Cosmic Connections Cruise #3
Collision!
Science Fiction · Alien Romance · Romance
November 1, 2025
Owned by the Alien Starlords Series
Claimed by the Starfire Alien Dragon
Science Fiction · Alien Romance · Dragons · Fated Mates · Shapeshifters
November 4, 2025
Claimed by the Alien Dragon Heir
Science Fiction · Alien Romance · Dragons · Fated Mates · Shapeshifters
November 4, 2025
Owned by the Alien Starlords Series
Claimed and Devoured by the Alien Dragon Mate
Science Fiction · Alien Romance · Dragons · Fated Mates · Shapeshifters
November 4, 2025
Spirit Mates of the Laediriian Exiles #3
Tempted by the Alien Warrior
Science Fiction · Alien Romance · Romance
June 24, 2025
Galactic Dating Service #1
Mated By Mandate
Science Fiction · Alien Romance · Fated Mates · Slow Burn Romance · Adult
August 11, 2025
Anywhere But Here #1
Take Me Away, Alien Reaper
Science Fiction · Alien Romance · Adult · Romance
October 17, 2025
Galactic Mail-Order Brides
The Alien Farmer Needs a Wife
Science Fiction · Alien Romance · Adult · Romance
September 29, 2025
A Guardian and a Thief
Science Fiction · Dystopia · Adult
October 14, 2025
Outlaw Planet
Science Fiction · Adventure
November 18, 2025