Maxim Colonies
by Lesli Richardson
3.93 · 15 ratings
fiction · sci-fi · first-contact · violent-conflict · adult · invasion · futuristic · steamy · book · romance · lgbtq · mlm · aliens · cheating · medical · mystery · non-binary-mc · paranormal · prison · military
Maxim Colonies: Similar series
Catteni
by Anne McCaffrey
3.96 · 124 ratings
adult · invasion · romance · violent-conflict · female-author · first-contact · space-opera · space-travel · sci-fi · aliens · fiction · action-adventure · futuristic · dystopia · space · audiobook · colonization · other-world · female-mc · survival
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Galactic Gladiators: House of Rone
by Anna Hackett
4.39 · 100 ratings
action-adventure · aliens · fiction · steamy · romance · adult · cyborgs · audiobook · sci-fi · paranormal · book · invasion · violent-conflict · first-contact · space · supernatural · military · warriors · alpha-mc · female-mc
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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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Metahuman Files
by Hailey Turner
4.33 · 147 ratings
book · romance · action-adventure · fiction · adult · military · mlm · paranormal · lgbtq · violent-conflict · urban-fantasy · dystopia · war · steamy · suspense · audiobook · crime · futuristic · sci-fi · supernatural
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Galactic Conspiracies
by Rob Colton
4.00 · 41 ratings
futuristic · alpha-mc · space · paranormal · mlm · book · steamy · romance · adult · military · sci-fi · action-adventure · aliens · fiction · lgbtq · abuse · violent-conflict · insta-love · children · family
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In the Company of Shadows
by Ais
4.34 · 117 ratings
sci-fi · adult · lgbtq · fiction · dystopia · romance · mlm · dark · assassins · military · violent-conflict · futuristic · war · action-adventure · political-intrigue · post-apocalyptic · steamy · book · new-adult · crime
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Claimings
by Lyn Gala
4.17 · 63 ratings
aliens · fiction · age-gap · lgbtq · adult · sci-fi · mlm · romance · steamy · book · audiobook · paranormal · action-adventure · slow-burn · military · violent-conflict · space · friends-to-lovers · futuristic · female-author
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Gaven
by J.C. Owens
3.83 · 46 ratings
supernatural · mlm · romance · book · paranormal · action-adventure · fiction · fantasy · lgbtq · adult · historical · magic · angst · vampires · royalty · steamy · shapeshifters · alpha-mc · enemies-to-lovers · age-gap
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Sci-Regency
by J.L. Langley
3.90 · 88 ratings
futuristic · lgbtq · industrial-era · fiction · sci-fi · historical · adult · romance · book · mlm · war · action-adventure · military · violent-conflict · regency · aliens · steamy · royalty · paranormal · age-gap
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Dark Space
by Lisa Henry
4.02 · 42 ratings
book · military · adult · violent-conflict · sci-fi · space-opera · aliens · fiction · action-adventure · futuristic · lgbtq · war · dystopia · space · angst · mlm · romance · dark · mystery · audiobook
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Valos of Sonhadra
by Regine Abel
3.98 · 126 ratings
romance · paranormal · aliens · fiction · sci-fi · adult · reverse-harem · book · steamy · polyamory · shapeshifters · space · first-contact · invasion · violent-conflict · abuse · genetic-engineering · futuristic · colonization · humor
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The Blue Solace
by C.W. Gray
4.25 · 66 ratings
sci-fi · mlm · book · romance · paranormal · aliens · action-adventure · fiction · lgbtq · futuristic · adult · shapeshifters · omegaverse · military · children · audiobook · humor · family · abuse · steamy
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Chaos Station
by Jenn Burke
4.16 · 45 ratings
romance · book · steamy · mlm · suspense · billionaire · space · futuristic · lgbtq · war · aliens · fiction · action-adventure · sci-fi · space-opera · military · adult · violent-conflict · friends-to-lovers · second-chances
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Outer Limits Quadrant
by Alexis B. Osborne
4.02 · 27 ratings
paranormal · romance · steamy · book · military · adult · sci-fi · action-adventure · aliens · fiction · monsters · space · genetic-engineering · galactic-empire · invasion · first-contact · violent-conflict · soldiers · dark · space-travel
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Saving Caeorleia
by Alicia Nordwell
3.96 · 26 ratings
military · adult · dark · sci-fi · aliens · fiction · action-adventure · futuristic · lgbtq · dystopia · mlm · abuse · romance · book · steamy · violent-conflict · space-opera · war · family · space
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Galactic Alliance
by K.C. Burn
3.73 · 26 ratings
fiction · paranormal · space · invasion · romance · steamy · book · mlm · sci-fi · violent-conflict · adult · lgbtq · aliens · mystery · audiobook · futuristic · action-adventure · exploration · politics · betrayal
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An Uncommon Whore
by Belinda McBride
3.79 · 34 ratings
futuristic · aliens · fiction · sci-fi · adult · romance · steamy · book · mlm · lgbtq · action-adventure · slavery · abuse · suspense · war · family · dark · space-opera · military · violent-conflict
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The Valespian Pact
by Lexi Ander
4.09 · 33 ratings
lgbtq · aliens · fiction · sci-fi · adult · romance · book · mlm · action-adventure · polyamory · royalty · paranormal · family · war · mystery · space-opera · military · violent-conflict · steamy · shapeshifters
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Cadi Warriors
by Stephanie West
4.11 · 45 ratings
alpha-mc · invasion · steamy · book · first-contact · adult · violent-conflict · sci-fi · aliens · fiction · romance · military · new-adult · action-adventure · paranormal · female-mc · futuristic · humor · war · supernatural
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Clan Beginnings
by Tracy St. John
4.18 · 44 ratings
book · lgbtq · mlm · fiction · sci-fi · adult · romance · steamy · aliens · paranormal · space · action-adventure · futuristic · military · alpha-mc · polyamory · violent-conflict · age-gap · shapeshifters · war
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Planet of Desire
by Robin Lovett
3.60 · 25 ratings
steamy · book · romance · paranormal · space · fated-mates · aliens · fiction · action-adventure · sci-fi · adult · military · invasion · forced-proximity · violent-conflict · first-contact · enemies-to-lovers · war · lgbtq · captivity
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Alien Slave Masters
by Samantha Cayto
3.76 · 36 ratings
enemies-to-lovers · dystopia · space · book · steamy · captivity · romance · mlm · abuse · dark · sci-fi · adult · lgbtq · sexual-assault · futuristic · aliens · fiction · slavery · military · action-adventure
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Unexpected
by Layla Stone
4.06 · 18 ratings
romance · book · paranormal · futuristic · aliens · fiction · sci-fi · adult · invasion · colonization · action-adventure · space-opera · first-contact · violent-conflict · kidnapping · steamy · abuse · galactic-empire · genetic-engineering · poc-mc
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Quads of Alpha S
by Kelex
3.56 · 16 ratings
steamy · adult · paranormal · sci-fi · mlm · aliens · fiction · romance · lgbtq · book · polyamory · military · bdsm · bodyguard · space · vampires · action-adventure · age-gap · futuristic · sexual-assault
All books in this series ❯