Most Popular Alien Romance Books of 2025

Claimed by the Alien Warlord

Athena Storm

Science Fiction · Alien Romance · Adult · Romance

June 12, 2025

Alien Boss. Human Pet

Athena Storm

Science Fiction · Alien Romance · Adult · Romance

July 17, 2025

The Mercenary’s Hidden Heir

Athena Storm, Cara Stone

Fantasy · Science Fiction · Alien Romance · Fated Mates · Paranormal Romance

July 10, 2025

Barbarians of the Dust #1

Rok's Captive

A.G. Wilde

Science Fiction · Alien Romance · Fated Mates · Romance

May 6, 2025

The Restitution #3

Akur

A.G. Wilde

Science Fiction · Alien Romance · Adult · Romance

February 6, 2025

Cowboy Colony Mail-Order Brides #6

Rescued by the Alien Bull Rider

Ursa Dax

Science Fiction · Alien Romance · Romance · Western

July 30, 2025

Cowboy Colony Mail-Order Brides #5

Married to the Alien Mountain Man

Ursa Dax

Science Fiction · Alien Romance · Romance · Western

April 30, 2025

Nagas of Nirum #5

Naga Healer's Mate

Anne Hale, Celia Kyle

Science Fiction · Alien Romance · Naga · Adult · Romance

July 8, 2025

Nagas of Nirum #4

Naga Warrior's Mate

Anne Hale, Celia Kyle

Science Fiction · Alien Romance · Naga · Adult · Romance

June 15, 2025

Starlight Alien Mail Order Brides #9

Rainse

Skye MacKinnon

Science Fiction · Alien Romance · Mermaid · Adult · Romance

November 20, 2025

Starlight Alien Mail Order Brides #8

Cerban

Skye MacKinnon

Science Fiction · Alien Romance · Mermaid · Adult · Romance

October 16, 2025

Starlight Alien Mail Order Brides #7

Fionn

Skye MacKinnon

Science Fiction · Alien Romance · Mermaid · Adult · Romance

September 4, 2025

Fated Mates of the Sarkarnii Warlords #1

Fated to the Dragon Warlord

Hattie Jacks

Science Fiction · Alien Romance · Dragons · Fated Mates · Instalove Romance

July 10, 2025

Klagan Warriors

New Year With the Klagan

Holly Hanzo

Science Fiction · Alien Romance · New Year's Fiction · Holiday/Seasonal · Romance

January 15, 2025

Klagan Warriors

The Klagan's Christmas Gift

Holly Hanzo

Science Fiction · Alien Romance · Space Opera · Adult · Christmas Fiction

July 25, 2025

Klagan Warriors #4

Maklr

Holly Hanzo

Science Fiction · Alien Romance · Space Opera · Romance

June 18, 2025

Red Planet Fated Mates #9

Risking Her Heart

Miranda Martin

Science Fiction · Alien Romance · Dragons · Fated Mates · Adult

January 11, 2025

Red Planet Fated Mates #10

Surrendering Her Heart

Miranda Martin

Science Fiction · Alien Romance · Dragons · Fated Mates · Adult

March 15, 2025

Abducted by the Ruthless Royal: Planet Sanos

Taken by the Leviathan King

Lara Roth

Science Fiction · Alien Romance · Fated Mates · Monster Romance · Adult

June 4, 2025

Abducted by the Ruthless Royal: Planet Sanos

Taken by the Alien Kraken King

Holly Hanzo

Science Fiction · Alien Romance · Fated Mates · Kraken · Adult

June 4, 2025

Abducted by the Ruthless Royal: Planet Sanos

Taken by the Storm King

Elin Wyn

Fantasy · Science Fiction · Alien Romance · Fated Mates · Romantasy

June 4, 2025

Abducted by the Ruthless Royal: Planet Sanos

Taken by the Alien Merrow King

Mary Ashe

Science Fiction · Alien Romance · Fated Mates · Mermaid · Monster Romance

June 4, 2025

Abducted by the Ruthless Royal: Planet Sanos

Taken by the Alien Siren King (A Scifi Alien Romance)

Chloe Graves

Science Fiction · Alien Romance · Fated Mates · Adult · Siren

June 4, 2025

Wrecked By My Alien Mentor

Athena Storm

Science Fiction · Alien Romance · Adult · Romance

May 29, 2025

Billionaire Alien Boss Daddy

Athena Storm

Science Fiction · Alien Romance · Romance

May 15, 2025

Interdimensional Love #2

Dinner for My Alien Chef

Zoe Verona

Science Fiction · Alien Romance · Adult · Romance

June 6, 2025

The Vrix #1

The Weaver

Tiffany Roberts

Science Fiction · Alien Romance · Romance

April 2, 2025

Abducted by the Ruthless Royal: Planet Sanos

Taken by the Alien Merking

Celia Kyle

Fantasy · Science Fiction · Alien Romance · Mermaid · Romance

June 4, 2025

Claimed by Aliens

Honey Phillips, Demelza Carlton, Kate Rudolph, Skye MacKinnon, Nancey Cummings, Celia Kyle, Tamsin Ley, Elsa Jade, Zoey Indiana, Veronica Scott

Science Fiction · Alien Romance · Fated Mates · Romance

May 4, 2025

Apocalypse #1

Survival Instinct

Cara Bristol

Science Fiction · Alien Romance · Dystopia · Post-Apocalyptic · Romance

May 26, 2025

The Radio Effect - A Sci-Fi Romance Short

Elliot Ason

Science Fiction · Alien Romance · Adult · Short Stories · Romance

May 16, 2025

Krijese Warlords #1

Claimed by the Krijese

Erin Hale

Science Fiction · Alien Romance · Romance

June 20, 2025

Brides of the Bohnari #1

Resisting the Alien Commander

Erin Hale

Science Fiction · Alien Romance · Fated Mates · Romance

April 28, 2025

Galactic Mates

Galactic Temptation

Luna Wren

Science Fiction · Alien Romance · Fated Mates · Adult · Romance

April 18, 2025

Galactic Mates

Galactic Seduction

Luna Wren

Science Fiction · Alien Romance · Fated Mates · Adult · Romance

May 2, 2025

Galactic Mates

Galactic Attraction

Luna Wren

Science Fiction · Alien Romance · Fated Mates · Adult · Romance

May 30, 2025