Small Universe
by Christopher M. Daniels
3.57 · 7 ratings
book · action-adventure · adult · fiction · humor · comedy · exploration · first-contact · sci-fi · box-set · space-travel · male-author · super-powered
Small Universe: Similar series
Bobiverse
by Dennis E. Taylor
4.36 · 224 ratings
space-opera · sci-fi · fiction · space · audiobook · book · space-travel · comedy · exploration · action-adventure · humor · aliens · dystopia · ai · post-apocalyptic · male-author · violent-conflict · hard-sci-fi · transhumanism · adult
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Space Odyssey
by Arthur C. Clarke
3.89 · 179 ratings
sci-fi · fiction · book · first-contact · adult · space-opera · space-travel · 20th-century · action-adventure · aliens · exploration · hard-sci-fi · audiobook · space · literary · ai · classics · historical · futuristic · mystery
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Children of Time
by Adrian Tchaikovsky
4.18 · 100 ratings
book · audiobook · space · ai · action-adventure · aliens · fiction · hard-sci-fi · first-contact · violent-conflict · adult · sci-fi · space-travel · space-opera · invasion · post-apocalyptic · contemporary · 21st-century · genetic-engineering · survival
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The Long Earth
by Terry Pratchett
3.76 · 152 ratings
young-adult · multiverse · book · space · audiobook · fiction · alternate-universe · action-adventure · alternate-history · male-author · space-opera · sci-fi · dystopia · ai · aliens · humor · futuristic · violent-conflict · military · comedy
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The Lost Fleet
by Jack Campbell
4.08 · 372 ratings
violent-conflict · book · audiobook · space · war · fiction · aliens · action-adventure · sci-fi · space-opera · space-travel · military · space-fleet · male-author · adult · politics · futuristic · exploration · nautical · first-contact
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Red Dwarf
by Grant Naylor
4.06 · 126 ratings
space · audiobook · adult · comedy · satire · sci-fi · humor · fiction · book · action-adventure · contemporary · male-author · 20th-century · space-opera · aliens · robots · genetic-engineering · cyberpunk · time-travel · invasion
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Zones of Thought
by Vernor Vinge
4.11 · 108 ratings
fiction · sci-fi · adult · book · space · hard-sci-fi · exploration · aliens · space-opera · space-travel · first-contact · violent-conflict · invasion · audiobook · action-adventure · singularity · war · epic · 20th-century · male-author
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Phule's Company
by Robert Lynn Asprin
3.84 · 124 ratings
comedy · space-travel · space-opera · soldiers · sci-fi · violent-conflict · military · war · humor · fiction · exploration · space · audiobook · book · adult · space-fleet · first-contact · aliens · invasion · colonization
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Junkyard Pirate
by Jamie McFarlane
4.43 · 101 ratings
space-opera · sci-fi · violent-conflict · space · adult · military · first-contact · book · invasion · aliens · fiction · colonization · soldiers · audiobook · action-adventure · space-travel · humor · exploration · outlaws · galactic-empire
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Old Man's War
by John Scalzi
4.02 · 552 ratings
sci-fi · space-opera · fiction · space · audiobook · book · military · violent-conflict · adult · aliens · war · colonization · space-travel · action-adventure · humor · soldiers · exploration · genetic-engineering · galactic-empire · politics
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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 Human Division
by John Scalzi
4.07 · 243 ratings
adult · violent-conflict · military · space-opera · space-travel · sci-fi · fiction · aliens · space · soldiers · humor · action-adventure · exploration · war · genetic-engineering · audiobook · galactic-empire · colonization · book · first-contact
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Indian Hill
by Mark Tufo
4.49 · 102 ratings
sci-fi · first-contact · adult · violent-conflict · aliens · fiction · post-apocalyptic · invasion · book · soldiers · military · space-travel · space-fleet · exploration · action-adventure · zombies · audiobook · space · colonization · space-opera
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Alien Hunters
by Daniel Arenson
3.87 · 32 ratings
colonization · action-adventure · super-powered · aliens · invasion · exploration · fiction · book · military · violent-conflict · space · space-fleet · adult · sci-fi · space-travel · space-opera · humor · galactic-empire · mlm · supernatural
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Battle Harem
by Isaac Hooke
4.00 · 28 ratings
violent-conflict · space · cyberpunk · adult · space-fleet · military · first-contact · space-travel · space-opera · soldiers · sci-fi · action-adventure · aliens · exploration · colonization · fiction · harem · book · invasion · humor
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Fire Planet Warriors
by Calista Skye
4.03 · 36 ratings
aliens · exploration · fiction · paranormal · invasion · romance · book · sci-fi · space-travel · first-contact · violent-conflict · adult · poc-mc · action-adventure · steamy · soldiers · military · humor · survival · warriors
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Janitors of the Post-Apocalypse
by Jim C. Hines
4.11 · 27 ratings
dystopia · post-apocalyptic · book · military · adult · violent-conflict · sci-fi · humor · fiction · apocalyptic · audiobook · genetic-engineering · space · zombies · ai · first-contact · horror · male-author · satire · comedy
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Space Gypsy Chronicles
by Eve Langlais
3.76 · 30 ratings
romance · book · paranormal · audiobook · futuristic · aliens · exploration · fiction · humor · action-adventure · sci-fi · space-opera · space-travel · first-contact · adult · steamy · galactic-empire · cyberpunk · space · genetic-engineering
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Stray Cat Strut
by RavensDagger
4.41 · 27 ratings
audiobook · book · sci-fi · adult · aliens · fiction · humor · dystopia · cyberpunk · survival · litrpg · steamy · invasion · progression-fantasy · urban-fantasy · romantic-love · violent-conflict · wlw · lgbtq · apocalyptic
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Warlords Of Atera
by Celia Kyle
3.85 · 20 ratings
book · romance · adult · sci-fi · aliens · fiction · forced-proximity · audiobook · steamy · invasion · violent-conflict · space-fleet · military · first-contact · space-travel · new-adult · action-adventure · humor · exploration · fated-mates
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Mates of the Kilgari
by Celia Kyle
4.05 · 37 ratings
book · first-contact · military · adult · space-fleet · soldiers · sci-fi · space-travel · aliens · exploration · fiction · action-adventure · genetic-engineering · galactic-empire · humor · audiobook · romance · paranormal · futuristic · violent-conflict
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Star Warrior
by C.F. Harris
3.88 · 16 ratings
aliens · fiction · humor · action-adventure · sci-fi · book · adult · romance · military · exploration · soldiers · invasion · space-fleet · violent-conflict · first-contact · galactic-empire · space-travel · new-adult · futuristic · paranormal
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Carrie Hatchett, Space Adventurer
by J.J. Green
3.75 · 16 ratings
action-adventure · humor · fiction · violent-conflict · sci-fi · space · aliens · exploration · first-contact · space-travel · comedy · anthologies · invasion · military · space-fleet · adult · galactic-empire · lgbtq · colonization · young-adult
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Star Crusades Mercenaries
by Michael G. Thomas
3.92 · 12 ratings
galactic-empire · space-travel · space-opera · soldiers · space-fleet · adult · violent-conflict · space · sci-fi · first-contact · military · book · invasion · aliens · action-adventure · exploration · fiction · super-powered
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