The Department of Homeworld Security: Similar romance series

House of Kaimar

by Miranda Bridges

4.13 · 112 ratings

action-adventure · aliens · female-mc · fiction · dark · sci-fi · violent-conflict · adult · first-contact · book · kidnapping · romance · paranormal · contemporary · steamy · invasion · alpha-mc · fated-mates · insta-love · royalty

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Aldebarian Alliance

by Dianne Duvall

4.37 · 89 ratings

romance · book · vampires · paranormal · audiobook · alpha-mc · female-mc · action-adventure · aliens · fiction · sci-fi · adult · space · humor · military · first-contact · steamy · urban-fantasy · suspense · contemporary

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Cosmos' Gateway

by S.E. Smith

4.17 · 138 ratings

audiobook · contemporary · alpha-mc · romance · sci-fi · aliens · fiction · paranormal · invasion · book · first-contact · military · space-fleet · adult · violent-conflict · soldiers · action-adventure · futuristic · steamy · alternate-history

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The Alliance

by S.E. Smith

4.12 · 120 ratings

aliens · fiction · romance · book · sci-fi · adult · paranormal · audiobook · post-apocalyptic · military · futuristic · action-adventure · dystopia · first-contact · violent-conflict · contemporary · invasion · space · steamy · space-travel

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Katherine "Kitty" Katt

by Gini Koch

4.17 · 227 ratings

urban-fantasy · fiction · adult · paranormal · sci-fi · romance · book · aliens · action-adventure · humor · violent-conflict · invasion · contemporary · first-contact · super-powered · mystery · suspense · military · female-mc · alpha-mc

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Mail-Order Brides of Crakair

by Ava Ross

4.19 · 82 ratings

action-adventure · humor · romance · book · sci-fi · adult · fiction · aliens · galactic-empire · audiobook · invasion · colonization · violent-conflict · dystopia · steamy · insta-love · first-contact · paranormal · new-adult · soldiers

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Interstellar Brides: The Colony

by Grace Goodwin

4.26 · 108 ratings

fiction · paranormal · cyborgs · romance · book · steamy · sci-fi · adult · shapeshifters · vampires · aliens · action-adventure · audiobook · genetic-engineering · insta-love · military · futuristic · violent-conflict · war · contemporary

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Sarazen Saga

by Isabel Wroth

4.15 · 52 ratings

sci-fi · adult · fated-mates · aliens · fiction · paranormal · book · shapeshifters · romance · violent-conflict · first-contact · alpha-mc · contemporary · invasion · space · steamy · space-opera · insta-love · children · monsters

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The Ujal

by Erin Tate

4.04 · 92 ratings

romance · shapeshifters · steamy · paranormal · aliens · fiction · adult · book · sci-fi · space-travel · invasion · galactic-empire · exploration · humor · mermaids · first-contact · violent-conflict · colonization · insta-love · supernatural

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Inferno Force of the Drexian Warriors

by Tana Stone

4.42 · 61 ratings

fiction · aliens · adult · sci-fi · book · romance · humor · action-adventure · female-mc · violent-conflict · first-contact · invasion · paranormal · steamy · forced-proximity · workplace · poc-mc · galactic-empire · enemies-to-lovers · suspense

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The Pet Project

by Amanda Milo

3.92 · 26 ratings

invasion · romance · book · steamy · first-contact · slavery · adult · violent-conflict · dark · sci-fi · aliens · fiction · alpha-mc · paranormal · colonization · captivity · humor · futuristic · forced-proximity · dystopia

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Urf Oomons

by Bebe Harper

3.90 · 43 ratings

aliens · fiction · adult · sci-fi · book · monsters · violent-conflict · first-contact · romance · invasion · paranormal · humor · steamy · slow-burn · insta-love · dark · captivity · myths · poc-mc · mythical-creatures

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Starfighter Training Academy

by Grace Goodwin

4.22 · 41 ratings

fiction · action-adventure · sci-fi · military · adult · romance · book · paranormal · audiobook · genetic-engineering · war · aliens · first-contact · space-fleet · violent-conflict · invasion · steamy · colonization · space · suspense

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Darverius, House of DaR

by Jennifer Julie Miller

4.32 · 69 ratings

invasion · alpha-mc · aliens · fiction · adult · violent-conflict · book · first-contact · sci-fi · female-mc · romance · futuristic · steamy · paranormal · action-adventure · humor · fated-mates · kind-mc · vampires · kidnapping

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Her Illusian Warrior

by Annalise Alexis

4.30 · 20 ratings

alpha-mc · adult · violent-conflict · first-contact · sci-fi · suspense · aliens · fiction · female-mc · steamy · book · invasion · romance · death · fighter · revenge · genetic-engineering · politics · space-opera · paranormal

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Motor City Alien Mail Order Brides

by Ellis Leigh

3.87 · 23 ratings

humor · aliens · fiction · book · invasion · violent-conflict · adult · first-contact · paranormal · romance · sci-fi · contemporary · steamy · arranged-marriage · box-set

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Fated Star Mates

by Kyla Quinn

3.93 · 28 ratings

genetic-engineering · adult · violent-conflict · first-contact · galactic-empire · sci-fi · humor · aliens · fiction · book · invasion · romance · paranormal · barbarians · alpha-mc · futuristic · female-mc · steamy · space · 21st-century

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Tail and Claw

by Nancey Cummings

4.06 · 28 ratings

book · adult · romance · aliens · fiction · contemporary · audiobook · invasion · violent-conflict · first-contact · sci-fi · action-adventure · paranormal · colonization · humor · arranged-marriage · supernatural · steamy · fantasy · dystopia

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Alien Quarantine Rescue

by Robin Lovett

3.62 · 21 ratings

steamy · book · post-apocalyptic · romance · alpha-mc · humor · aliens · fiction · apocalyptic · futuristic · fated-mates · adult · first-contact · sci-fi · invasion · space · dystopia · paranormal · womens-fiction · violent-conflict

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Intergalactic Alliance

by Bella Blair

4.33 · 55 ratings

book · romance · invasion · aliens · fiction · sci-fi · adult · violent-conflict · first-contact · galactic-empire · enemies-to-lovers · action-adventure · steamy · colonization · fated-mates · insta-love · paranormal · alpha-mc · shapeshifters · mermaids

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Alpha Alien

by Flora Dare

3.37 · 19 ratings

fiction · romance · steamy · sci-fi · adult · aliens · paranormal · contemporary · inter-galactic · book · space · humor · galactic-empire · exploration · genetic-engineering · invasion · colonization · soldiers · space-travel · first-contact

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The Intergalactic Guide to Humans

by Skye MacKinnon

3.86 · 14 ratings

invasion · book · aliens · fiction · humor · sci-fi · first-contact · adult · violent-conflict · steamy · poc-mc · audiobook · romance · reverse-harem · contemporary · polyamory · futuristic · paranormal · multi-pov · space

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Genmate Dilemma

by Cara Bristol

4.50 · 6 ratings

life-death · space-travel · sci-fi · adult · violent-conflict · first-contact · secrets · fated-mates · aliens · fiction · action-adventure · psychics · enemies-to-lovers · paranormal · suspense · genetic-engineering · contemporary · shapeshifters · book · steamy

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