Galaxy Gladiators: Similar romance series

Catteni

by Anne McCaffrey

3.96 · 124 ratings

sci-fi · space-travel · space-opera · female-author · first-contact · adult · violent-conflict · futuristic · aliens · fiction · action-adventure · audiobook · dystopia · space · invasion · romance · other-world · colonization · female-mc · survival

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House of Kaimar

by Miranda Bridges

4.13 · 112 ratings

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

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Theirs Not to Reason Why

by Jean Johnson

4.07 · 88 ratings

invasion · time-travel · book · paranormal · space · futuristic · war · female-mc · aliens · action-adventure · fiction · soldiers · sci-fi · space-travel · space-opera · first-contact · military · magic · adult · violent-conflict

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Captured by Aliens

by A.G. Wilde

4.03 · 77 ratings

paranormal · action-adventure · aliens · fiction · female-mc · adult · first-contact · sci-fi · book · steamy · romance · dark · kidnapping · alpha-mc · galactic-empire · humor · poc-mc · slow-burn · violent-conflict · invasion

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The Alliance

by S.E. Smith

4.12 · 120 ratings

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

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Riv’s Sanctuary

by A.G. Wilde

4.12 · 44 ratings

dark · sci-fi · adult · futuristic · poc-mc · female-mc · fiction · aliens · action-adventure · humor · paranormal · alpha-mc · space · romance · kidnapping · book · first-contact · violent-conflict · galactic-empire · audiobook

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Raider Warlords of the Vandar

by Tana Stone

4.30 · 142 ratings

book · adult · sci-fi · aliens · fiction · galactic-empire · romance · steamy · first-contact · female-mc · action-adventure · space · invasion · violent-conflict · humor · paranormal · new-adult · alpha-mc · audiobook · fighter

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Sarazen Saga

by Isabel Wroth

4.15 · 52 ratings

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

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The Darvel Exploratory Systems

by S.J. Sanders

4.09 · 52 ratings

paranormal · romance · book · adult · sci-fi · aliens · fiction · monsters · urban-fantasy · steamy · futuristic · alpha-mc · myths · audiobook · space · invasion · violent-conflict · new-adult · space-travel · female-mc

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Shamans & Shifters Space Opera

by Jenny Schwartz

4.33 · 46 ratings

romance · shapeshifters · book · paranormal · space · aliens · fiction · action-adventure · sci-fi · space-travel · space-opera · first-contact · adult · futuristic · outlaws · space-fleet · magic · fae · colonization · galactic-empire

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Outer Limits Quadrant

by Alexis B. Osborne

4.02 · 27 ratings

sci-fi · adult · military · monsters · action-adventure · fiction · aliens · paranormal · book · steamy · romance · space-travel · soldiers · dark · violent-conflict · first-contact · slow-burn · exploration · galactic-empire · genetic-engineering

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Star

by Susan Grant

3.97 · 69 ratings

paranormal · romance · adult · sci-fi · aliens · fiction · futuristic · book · action-adventure · galactic-empire · steamy · space-opera · female-mc · space · invasion · first-contact · violent-conflict · royalty · contemporary · anthologies

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The Ravager Chronicles

by Sara Page

3.86 · 42 ratings

sci-fi · adult · polyamory · aliens · fiction · paranormal · book · reverse-harem · steamy · romance · space-opera · action-adventure · poc-mc · space · military · fated-mates · royalty · space-travel · dark · demons

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Chosen by the Karal

by Harmony Raines

3.90 · 50 ratings

space-travel · sci-fi · adult · violent-conflict · first-contact · aliens · exploration · fiction · galactic-empire · paranormal · genetic-engineering · book · invasion · romance · colonization · futuristic · dystopia · contemporary · steamy · space

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Warriors of Karal

by Harmony Raines

4.18 · 38 ratings

action-adventure · paranormal · sci-fi · galactic-empire · space-travel · first-contact · contemporary · adult · violent-conflict · invasion · romance · steamy · book · colonization · aliens · exploration · fiction · warriors · dystopia · genetic-engineering

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Vostra Crime Lords

by Luna Voss

4.07 · 30 ratings

adult · steamy · paranormal · sci-fi · aliens · fiction · omegaverse · book · organized-crime · violent-conflict · galactic-empire · action-adventure · female-mc · supernatural · crime · gothic · fated-mates · invasion · space · romance

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Eok Warriors

by Mary Auclair

4.20 · 36 ratings

action-adventure · fiction · sci-fi · adult · romance · book · aliens · first-contact · paranormal · alpha-mc · female-mc · violent-conflict · invasion · steamy · suspense · futuristic · outlaws · new-adult · vampires · space

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