Old Man's War: Similar series
Warriors of Kaizon
by Luna Hunter
3.72 · 67 ratings
humor · shapeshifters · military · length-novella · aliens · science fiction · futuristic · alpha male · dystopian · non-human-hero · royalty · possessive hero · paranormal · fighters · fantasy · erotica · breeding · virgin heroine · insta-love · explicit-plentiful
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Interstellar Brides: Ascension Saga
by Grace Goodwin
4.30 · 112 ratings
military · science fiction · aliens · multicultural · futuristic · length-novella · non-human-hero · aristocratic heroine · fated-mates · explicit-open-door · possessive hero · strong heroine · mystery · non-human-heroine · suspense · sassy heroine · m-f · praise-kink · spanking · gifted heroine
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Men of Omaron
by Juno Wells
4.01 · 31 ratings
science fiction · futuristic · military · fantasy · length-novella · aliens · length-short · alpha male · m-f · pregnancy · dual-pov · royalty · third-person-pov · explicit-open-door
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Accidental Alien
by Erin Tate
4.01 · 39 ratings
futuristic · humor · military · science fiction · aliens · length-novella · political-intrigue · erotica · length-medium
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Taken by the Panther
by V.M. Black
4.26 · 23 ratings
military · multicultural · fantasy · length-novella · futuristic · shapeshifters · paranormal · science fiction · urban fantasy · witches · curvy heroine · psychics
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Timber Bear Ranch
by Scarlett Grove
4.41 · 22 ratings
psychics · paranormal · fantasy · shapeshifters · military · futuristic · science fiction · length-novella · multicultural · fated-mates · m-f · suspense
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The Dark Future
by K.C. Klein
3.82 · 11 ratings
science fiction · length-novella · futuristic · military · young adult · paranormal · fantasy · length-medium · dystopian · virgin heroine · time travel
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Alien Warrior Brides
by Taylor Neptune
3.73 · 15 ratings
new adult · science fiction · aliens · military · futuristic · humor · multicultural · length-novella · length-short
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The Cyborg Chronicles
by Bethany Shaw
4.00 · 5 ratings
military · futuristic · science fiction · length-novella · miscarriage · friends to lovers · war · tortured heroine · abuse · forbidden love · angst · dystopian · suspense · second chances · alpha male · death · strong heroine
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Queen of the Savages
by Lisa Lace
3.80 · 5 ratings
futuristic · military · multicultural · science fiction · length-novella · aliens · fantasy · urban fantasy
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Invasion Earth
by Immortal Angel
3.67 · 3 ratings
science fiction · length-novella · futuristic · paranormal · humor · military · fantasy · aliens · witches
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Tu'fal Mates
by Brittany White
3.00 · 4 ratings
military · futuristic · science fiction · humor · multicultural · aliens · christian · length-novella · fantasy · paranormal
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