Obsidian Rim
by Maggie Lynch
4.00 · 6 ratings
action-adventure · fiction · book · adult · sci-fi · space-opera · colonization · romance · supernatural · humor · mystery · aliens · slow-burn · futuristic · post-apocalyptic · steampunk · industrial-era · royalty · military · first-contact
Obsidian Rim: 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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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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The Adventures of a Xeno-Archaeologist
by Jenny Schwartz
4.33 · 84 ratings
adult · first-contact · military · space-opera · sci-fi · action-adventure · aliens · fiction · futuristic · space · ai · supernatural · exploration · super-powered · cyberpunk · galactic-empire · book · romance · space-fleet · space-travel
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Destiny's Crucible
by Olan Thorensen
4.18 · 101 ratings
time-travel · audiobook · action-adventure · aliens · portal-travel · fiction · war · violent-conflict · military · historical-fiction · epic · book · adult · paranormal · sci-fi · colonization · ai · alternate-history · grim-dark · historical
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Aurora Rising
by G.S. Jennsen
4.13 · 66 ratings
sci-fi · space-travel · space-opera · first-contact · military · fiction · action-adventure · galactic-empire · cyberpunk · colonization · space-fleet · violent-conflict · aliens · exploration · ai · space · romance · book · soldiers · adult
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Interstellar Sheriff
by Jenny Schwartz
4.39 · 35 ratings
space-opera · sci-fi · adult · historical · industrial-era · crime · action-adventure · fiction · aliens · female-mc · galactic-empire · space · book · western · space-travel · violent-conflict · futuristic · humor · ai · invasion
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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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The Outback Stars
by Sandra McDonald
3.46 · 24 ratings
book · romance · action-adventure · fiction · colonization · space-opera · soldiers · sci-fi · space · violent-conflict · space-fleet · military · myths · war · aliens · exploration · paranormal · adult · time-travel · invasion
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Aurora Renegades
by G.S. Jennsen
4.46 · 28 ratings
action-adventure · aliens · exploration · fiction · military · first-contact · violent-conflict · space-fleet · adult · soldiers · sci-fi · space-travel · space-opera · colonization · invasion · book · audiobook · space · cyberpunk · utopia
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Amaranthe
by G.S. Jennsen
4.32 · 122 ratings
cyberpunk · colonization · space-opera · sci-fi · violent-conflict · first-contact · military · aliens · fiction · galactic-empire · invasion · space-travel · space-fleet · exploration · action-adventure · space · adult · soldiers · book · genetic-engineering
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Asterion Noir
by G.S. Jennsen
4.39 · 18 ratings
cyberpunk · genetic-engineering · space · audiobook · galactic-empire · politics · suspense · colonization · book · technothriller · invasion · romance · space-fleet · adult · violent-conflict · first-contact · horror · military · space-travel · space-opera
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Project: Adapt
by Jade Waltz
4.14 · 29 ratings
adult · romance · polyamory · space-opera · sci-fi · fiction · aliens · royalty · reverse-harem · book · fated-mates · genetic-engineering · paranormal · action-adventure · poc-mc · female-mc · colonization · first-contact · assassins · epic
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Venora Mates
by Octavia Kore
3.95 · 21 ratings
fiction · adult · book · paranormal · action-adventure · humor · aliens · monsters · lgbtq · violent-conflict · polyamory · horror · dark · sci-fi · colonization · supernatural · reverse-harem · invasion · romance · genetic-engineering
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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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Fated Mates of the Titan Empire
by Tammy Walsh
4.15 · 27 ratings
first-contact · adult · genetic-engineering · violent-conflict · paranormal · galactic-empire · sci-fi · space-travel · space-opera · colonization · aliens · fiction · humor · invasion · romance · book · military · action-adventure · steamy · monsters
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Worldship Files
by Erik Schubach
4.45 · 22 ratings
action-adventure · fiction · romance · book · lgbtq · adult · sci-fi · wlw · colonization · fae · law-enforcement · paranormal · audiobook · space · magic · space-opera · female-mc · urban-fantasy · humor · mystery
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Kelderan Runic Warriors
by Jessie Donovan
4.21 · 24 ratings
colonization · aliens · fiction · book · adult · paranormal · sci-fi · action-adventure · humor · space-opera · romance · military · soldiers · audiobook · warriors · exploration · space-travel · futuristic · steamy · space-fleet
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The Chronicles of Nuala
by Katharine Eliska Kimbriel
4.00 · 8 ratings
colonization · galactic-empire · space-opera · sci-fi · adult · genetic-engineering · space · book · romance · fiction · action-adventure · political-intrigue · survival · hard-sci-fi · dystopia · female-author · audiobook · fish-out-of-water · high-fantasy · mystery
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Under Violet Suns
by Rose Mackie
4.25 · 8 ratings
book · romance · fantasy · action-adventure · aliens · fiction · sci-fi · paranormal · colonization · space-opera · space · adult · invasion · warriors · young-adult · violent-conflict · first-contact
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The Sector Fleet
by Nicola Claire
4.00 · 9 ratings
book · military · adult · cyberpunk · space · space-fleet · sci-fi · galactic-empire · space-opera · ai · space-travel · colonization · exploration · fiction · action-adventure · post-apocalyptic · futuristic · romance · female-author · friends-to-lovers
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Sol
by Erin Kellison
3.89 · 9 ratings
romance · aliens · fiction · sci-fi · adult · steamy · paranormal · book · futuristic · anthologies · action-adventure · colonization · space-opera · royalty
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Flyght
by S.J. Pajonas
4.15 · 13 ratings
space-opera · adult · book · action-adventure · fiction · colonization · reverse-harem · romance · sci-fi · polyamory · space · box-set · audiobook · dystopia · steamy · super-powered
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Outer Settlement Agency
by Lyn Brittan
3.67 · 9 ratings
military · adult · sci-fi · aliens · action-adventure · fiction · romance · book · humor · paranormal · space-fleet · dystopia · galactic-empire · soldiers · space-opera · colonization · poc-mc · black-mc · billionaire · steamy
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Antonello Brothers
by Kayelle Allen
4.20 · 5 ratings
book · adult · fiction · dystopia · romance · sci-fi · space-opera · genetic-engineering · paranormal · galactic-empire · colonization · mlm · military · first-contact · dark · action-adventure · humor · lgbtq · royalty · steamy
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