Ultimate Passage: Similar romance series

Awakened Womb

by Hawke Oakley

3.76 · 106 ratings

queer · non-human-hero · explicit-open-door · first-person-pov · fated-mates · breeding · length-short · anal sex · aliens · pregnancy · futuristic · dual-pov · sweet-hero · found-family · audiobook · multicultural · height-difference · new adult · m-m · creative-anatomy

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Confederation of Valor

by Tanya Huff

4.08 · 153 ratings

strong heroine · audiobook · military · futuristic · war · science fiction · aliens · survival · fantasy · paranormal · length-medium · humor · length-long · queer · time travel · mystery · suspense · pirates · m-f

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Metahuman Files

by Hailey Turner

4.18 · 167 ratings

dystopian · fetish · north-america · dual-pov · men in uniform · third-person-pov · anal sex · war · military · mental-trauma · science fiction · queer · m-m · audiobook · paranormal · suspense · futuristic · super rich hero · male-pov · superheroes

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Captured by Aliens

by A.G. Wilde

3.75 · 135 ratings

aliens · explicit-open-door · science fiction · audiobook · non-human-hero · cold hero · humor · independent heroine · fighters · abduction · m-f · survival · human-trafficking · forced proximity · futuristic · length-short · past-abuse · slavery · tortured heroine · death

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Dock Five Universe

by Linnea Sinclair

3.86 · 95 ratings

science fiction · futuristic · audiobook · suspense · length-long · open-door · aliens · found-family · m-f · multicultural · strong heroine · racism · contemporary · competent heroine · angst · tortured hero · first-person-pov · military · pirates · mystery

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Interstellar Brides Program: Rogues

by Grace Goodwin

4.30 · 61 ratings

non-human-hero · fighters · first-person-pov · military · vampires · dual-pov · fated-mates · futuristic · male-pov · aliens · height-difference · shapeshifters · science fiction · m-f · alpha male · audiobook · war · possessive hero · bodyguard-hero · graphic-violence

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Alien Wolf Tales

by Honey Phillips

4.26 · 73 ratings

m-f · paranormal · science fiction · shapeshifters · werewolves · fantasy · aliens · futuristic · sweet heroine · non-human-hero · explicit-open-door · possessive hero · poor heroine · working class heroine · forced proximity · dual-pov · multicultural · grumpy sunshine · third-person-pov · creative-anatomy

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Xian Warriors

by Regine Abel

4.23 · 135 ratings

science fiction · audiobook · m-f · military · non-human-hero · humor · aliens · futuristic · creative-anatomy · multicultural · competent heroine · explicit-open-door · suspense · fated-mates · virgin hero · strong heroine · gifted heroine · war · length-short · length-medium

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Warlords Of Atera

by Celia Kyle

3.89 · 32 ratings

aliens · audiobook · non-human-hero · science fiction · military · fated-mates · length-short · humor · competent heroine · commander · m-f · multicultural · virgin hero · sweet heroine · shy heroine · graphic-violence · explicit-open-door · tortured heroine · death · caretaking

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The Fallen World

by C.R. Jane

3.82 · 37 ratings

new adult · science fiction · poly · possessive hero · futuristic · reverse harem · aliens · non-human-hero · abduction · dystopian · contemporary · alpha male · length-short · forced proximity · usa · nerdy-hero · explicit-open-door · first-person-pov · dub-con · audiobook

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TerraMates

by Lisa Lace

3.97 · 121 ratings

futuristic · military · science fiction · multicultural · audiobook · length-short · suspense · aliens · length-medium · m-f · erotica · length-novella · alpha male · war · possessive hero · anal sex · insta-love · arranged marriage · pirates · non-human-hero

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Levekk Invaders

by Lea Linnett

3.86 · 29 ratings

aliens · science fiction · futuristic · competent heroine · strong heroine · audiobook · multicultural · m-f · height-difference · forbidden love · length-medium · length-short · poor heroine · forced proximity · third-person-pov · paranormal · racism · alpha male · political-intrigue · dual-pov

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Warriors of Sangrin

by Nancey Cummings

4.09 · 71 ratings

science fiction · audiobook · aliens · military · futuristic · length-short · m-f · non-human-hero · superheroes · length-medium · alpha male · open-door · competent heroine · strong heroine · length-novella · erotica · grumpy sunshine · possessive hero · age difference · fighters

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Genetically Modified

by Holly S. Roberts

4.07 · 30 ratings

audiobook · shapeshifters · paranormal · dystopian · aliens · fantasy · m-f · military · length-short · urban fantasy · found-family · demons · suspense · length-medium · strong heroine · science fiction · futuristic · new adult · horror · dark

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Conquered World

by Elin Wyn

4.10 · 99 ratings

aliens · audiobook · m-f · science fiction · length-short · non-human-hero · fantasy · paranormal · multicultural · open-door · military · career professional · futuristic · alpha male · competent heroine · fighters · cold hero · strong heroine · height-difference · graphic-violence

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New Carnegie Androids

by Roxie McClaine

4.03 · 34 ratings

fantasy · futuristic · science fiction · audiobook · military · paranormal · length-short · superheroes · demons · vampires · multicultural · steampunk · length-medium · virgin hero · from hate to love · m-f · mystery · forced proximity · aliens · past-abuse

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Alien Baby Pact

by Aurelia Skye

4.29 · 34 ratings

multicultural · length-novella · audiobook · science fiction · aliens · alpha male · military · futuristic · post-apocalyptic · fated-mates · east-asian-mc · m-f · paranormal · suspense · pregnancy · forced proximity · fantasy · height-difference · new adult

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