Alex Raymond's Flash Gordon: Similar series
Honor Harrington
by David Weber
4.14 · 437 ratings
book · fiction · sci-fi · space-opera · adult · violent-conflict · audiobook · space · war · female-mc · action-adventure · military · nautical · politics · alpha-mc · futuristic · hard-sci-fi · space-travel · aliens · pulp
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Expeditionary Force
by Craig Alanson
4.31 · 430 ratings
fiction · aliens · military · sci-fi · space-opera · book · audiobook · humor · violent-conflict · space · action-adventure · war · ai · adult · pulp · space-fleet · hard-sci-fi · young-adult · post-apocalyptic · invasion
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Saga of the Well World
by Jack L. Chalker
3.97 · 119 ratings
aliens · fiction · action-adventure · space-opera · sci-fi · space · adult · audiobook · book · anthologies · pulp · classics · literary · religious · children-books · young-adult · ai · epic · magic · journey
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Vampire Earth
by E.E. Knight
3.87 · 165 ratings
military · horror · violent-conflict · apocalyptic · action-adventure · fiction · paranormal · dystopia · post-apocalyptic · book · urban-fantasy · vampires · sci-fi · adult · war · audiobook · supernatural · futuristic · pulp · aliens
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Barsoom
by Edgar Rice Burroughs
3.87 · 413 ratings
fiction · classics · literary · action-adventure · sword-planet · sci-fi · audiobook · pulp · single-planet · book · aliens · mars · adult · space-opera · sword-sorcery · box-set · young-adult · 20th-century · space · historical
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Star Justice
by Michael-Scott Earle
4.22 · 106 ratings
book · adult · magic · sci-fi · space-opera · fiction · action-adventure · audiobook · space · paranormal · harem · vampires · shapeshifters · military · violent-conflict · pulp · space-travel · psychics · aliens · futuristic
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Lensman
by E.E. "Doc" Smith
3.89 · 129 ratings
fiction · sci-fi · space-opera · book · space · classics · pulp · literary · aliens · violent-conflict · adult · audiobook · military · action-adventure · 20th-century · historical · box-set · hard-sci-fi · war · mystery
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Tamer: King of Dinosaurs
by Michael-Scott Earle
4.28 · 88 ratings
adult · audiobook · litrpg · polyamory · survival · fantasy · action-adventure · fiction · harem · steamy · book · sci-fi · romance · aliens · pulp · paranormal · dystopia · magic · male-mc · satire
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Demon Princes
by Jack Vance
4.10 · 98 ratings
book · single-planet · fiction · action-adventure · sci-fi · space-opera · adult · space · male-author · crime · revenge · mystery · space-travel · pulp · aliens · box-set · 20th-century · historical · violent-conflict · invasion
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Venus
by Edgar Rice Burroughs
3.68 · 65 ratings
fiction · sci-fi · pulp · action-adventure · single-planet · literary · book · classics · sword-planet · aliens · audiobook · adult · young-adult · 20th-century · space-opera · space · historical · sword-sorcery · box-set · romance
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Slip Runner
by J.N. Chaney
4.38 · 52 ratings
military · space-fleet · adult · violent-conflict · space · soldiers · galactic-empire · sci-fi · colonization · aliens · action-adventure · fiction · invasion · book · audiobook · genetic-engineering · space-opera · pulp · first-contact
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Planet of Adventure
by Jack Vance
3.98 · 66 ratings
fiction · adult · sci-fi · action-adventure · book · space · pulp · sword-planet · audiobook · space-opera · classics · literary · single-planet · aliens · box-set · contemporary · subterranean · anthologies · male-author
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Star Trek: Deep Space Nine: Millenium
by Judith Reeves-Stevens
4.00 · 34 ratings
action-adventure · aliens · fiction · invasion · book · military · genetic-engineering · adult · violent-conflict · sci-fi · space-opera · drama · time-travel · space · pulp · hard-sci-fi · futuristic · audiobook · far-future · box-set
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The Moon Trilogy
by Edgar Rice Burroughs
3.69 · 30 ratings
adult · sci-fi · sword-planet · aliens · action-adventure · fiction · pulp · book · violent-conflict · audiobook · literary · classics · invasion · historical · 20th-century · space-opera · romance · communism · first-contact · military
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The Book of Skaith
by Leigh Brackett
3.73 · 22 ratings
sword-sorcery · action-adventure · sci-fi · space-opera · female-author · anti-hero · adult · book · pulp · single-planet · aliens · fiction · sword-planet · space · 20th-century · mars · historical
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Mucker
by Edgar Rice Burroughs
3.72 · 29 ratings
literary · audiobook · book · classics · historical-fiction · adult · action-adventure · fiction · mystery · pulp · historical · western · sci-fi · fantasy · teens · box-set · humor · suspense · supernatural · scoundrel
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Extinct
by Ike Hamill
3.83 · 29 ratings
sci-fi · adult · horror · book · post-apocalyptic · aliens · fiction · zombies · dystopia · apocalyptic · invasion · male-author · monsters · action-adventure · suspense · paranormal · violent-conflict · survival · season-winter · mystery
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The Galactic Wars
by Tripp Ellis
4.17 · 28 ratings
space-fleet · invasion · violent-conflict · colonization · supernatural · action-adventure · mystery · aliens · exploration · fiction · soldiers · sci-fi · space-travel · galactic-empire · military · space · genetic-engineering · adult · book · anthologies
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Parker Interstellar Travels
by Michael McCloskey
3.97 · 71 ratings
adult · space · space-travel · sci-fi · fiction · action-adventure · book · space-opera · exploration · pulp · female-mc · virtual-reality · cloning · hard-sci-fi · first-contact · cyborgs · aliens · violent-conflict · military · ai
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The Colony
by Michaelbrent Collings
3.87 · 45 ratings
supernatural · pulp · action-adventure · aliens · fiction · invasion · post-apocalyptic · book · monsters · psychological · military · war · first-contact · horror · adult · conspiracies · suspense · zombies · apocalyptic · survival
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Galactic Pirate Brides
by Tamsin Ley
4.16 · 27 ratings
sci-fi · adult · aliens · fiction · action-adventure · paranormal · first-contact · futuristic · female-mc · outlaws · genetic-engineering · book · romance · violent-conflict · suspense · alpha-mc · invasion · military · galactic-empire · steamy
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Arcot, Morey and Wade a.k.a. The Black Star
by John W. Campbell Jr.
3.32 · 19 ratings
fiction · action-adventure · mystery · war · adult · violent-conflict · sci-fi · space-opera · aliens · 20th-century · pulp · invasion · audiobook · space · historical · classics · anthologies · book · suspense · literary
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Eric John Stark
by Leigh Brackett
3.77 · 44 ratings
fiction · sci-fi · adult · sword-planet · action-adventure · book · pulp · space-opera · female-author · sword-sorcery · mars · single-planet · aliens · anti-hero · space · anthologies · literary · audiobook · classics · epic
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Starlight Monsters
by Skye MacKinnon
4.22 · 9 ratings
romance · book · fiction · aliens · sci-fi · adult · fated-mates · captivity · steamy · humor · action-adventure · suspense · historical · alpha-mc · futuristic · dark · insta-love
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