The Best Alien Romance Books. Series/Erotic/Romance/Sci-Fi
Women have always been fascinated by romance novels and one of the most popular subgenre is planetary romance, which involve a passionate love story with a fascinating alien in some exotic planet.
One of the precursor of this kind of science fantasy literature is A Princess of Mars, written in 1917 by Edgar Rice Burroughs. The protagonist was a Confederate Captain, John Carter, who find himself on the Red Planet and get involved in the political conflict and fall in love with the beautiful Dejah Thoris, Princess of Helium.
Here our selection of the best alien romance books to read in 2026, but be careful, someone must have read too many alien romance books, for example, this English woman who said she was kidnapped by a group of aliens and fell in love with one of them.
1. Ensnared: An Alien Romance Trilogy
By Tiffany Roberts
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Ensnared by Tiffany Roberts is one of the most original entries in the alien romance genre. The story follows a human woman stranded on a hostile alien world, where survival depends on forming an unlikely bond with a non-human creature.
What makes this trilogy stand out is its slow-burn relationship and detailed worldbuilding. The alien love interest is truly alien—not just a human with blue skin—which adds tension, curiosity, and a sense of discovery to the romance.
2. Alien Zookeeper’s Abduction: A Sci-Fi Alien Abduction Romance
By Zara Zenia and Juno Wells
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Alien Zookeeper’s Abduction by Zara Zenia and Juno Wells leans into the more playful and unconventional side of the genre. The premise is as wild as it sounds: a human woman is abducted and ends up in an intergalactic zoo.
Despite its humorous setup, the story delivers a surprisingly engaging romance, blending absurd situations with genuine emotional connection. It’s a great pick if you’re looking for something light, quirky, and a bit different from the usual alien romance tropes.
3. Ice Planet Barbarians
By Ruby Dixon
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“Ice Planet Barbarians” is a science fiction romance novel series written by Ruby Dixon. The series is set on a distant planet where a group of alien barbarians known as the Beruk have captured and enslaved a group of human women. The story follows the romance between one of the human women, a woman named Georgie, and her captor, a Beruk warrior named Zerk.
The series is known for its unique alien setting, action-packed plot, and steamy romance between the human and alien characters. It explores themes of captivity, power dynamics, and finding love in unexpected places. The books in the series are written in a fast-paced and action-oriented style, with plenty of steamy scenes that will appeal to fans of romance and science fiction alike.
It was part of a collection of books, each one featuring a different couple and story that all take place in the same world.
4. Assigned a Mate: Interstellar Brides
By Grace Goodwin
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Assigned a Mate by Grace Goodwin is one of the most popular entries in the “fated mates” subgenre. In this universe, human women are matched with powerful alien warriors through an interstellar program designed to ensure compatibility.
The story mixes action, high-stakes situations, and intense romance, with a strong focus on chemistry between characters. It’s fast-paced, addictive, and perfect if you enjoy dominant alien heroes and structured worldbuilding.
5. Royal Alien Mate: Savage Martians
by Sue Mercury
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Royal Alien Mate by Sue Mercury combines royal intrigue with alien romance. The story follows a human woman who finds herself entangled with a powerful alien ruler, navigating court politics, danger, and a growing attraction.
This book stands out for its mix of romance and power dynamics, with a setting that feels more like a sci-fi fairytale. If you enjoy stories about alien kings, destiny, and forbidden attraction, this is a solid choice.
6. Her Alien Prince: A Sci-Fi Alien Romance
by Presley Hall
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Her Alien Prince by Presley Hall is another strong entry in the fated mates category. The novel follows a human woman who becomes the destined partner of an alien prince, thrust into a world of political alliances and interstellar conflict.
The romance is central, but the story also builds a larger universe with multiple factions and stakes. It’s a good balance between emotional connection and sci-fi adventure.
7. Alien Commander’s Mate: Fated Mates of the Xilan Warriors
by Ava Ross
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Alien Commander’s Mate by Ava Ross delivers exactly what fans of the genre expect: a strong alien warrior, a human woman out of her element, and a bond that neither of them can ignore.
The appeal here is the dynamic between strength and vulnerability, with a protective yet conflicted alien hero. It’s a classic setup executed well, with enough tension and chemistry to keep readers hooked.
8. Viper: Naga Brides
by Naomi Lucas
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Viper by Naomi Lucas pushes the boundaries of alien romance even further. Featuring naga-like alien beings, this book is definitely on the more unconventional side of the genre.
It’s not for everyone, but if you’re looking for something truly different—with non-humanoid aliens and intense relationships—this series offers a unique and memorable experience.
9. Overlord: Galactic Kings
by Anna Hackett
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Overlord by Anna Hackett blends sci-fi action with romance in a more structured, military-style universe. The story follows a powerful alien ruler and the human woman who challenges him.
With strong pacing, action sequences, and a focus on leadership and power, this book is ideal if you want more plot alongside the romance.
10. Arrival: A Sci-fi Alien Invasion Romance
by A.G. Wilde
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Arrival by A. G. Wilde takes a slightly darker approach, set during an alien invasion of Earth. Amid chaos and uncertainty, a connection forms between human and alien characters.
This adds tension and urgency to the romance, making it feel more grounded despite the sci-fi setting. It’s a great pick if you enjoy post-apocalyptic vibes mixed with emotional storytelling.
11. Choosing Theo: Clecanian Series
by Victoria Aveline
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Choosing Theo by Victoria Aveline is widely considered one of the best-written books in the genre. The story follows a human woman transported to an alien planet where women choose their mates.
What sets this book apart is its focus on consent, emotional development, and character depth. The romance feels more balanced and realistic, making it a standout for readers looking for something beyond pure escapism.
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