Aliens are extraterrestrial life that does not originate from Earth. The sentient beings can range from simple bacteria-life organisms to complex species and individuals. Aliens are used in a variety of genres, most notably Science-Fiction.

The Darkest Star (Origin, #1)
Saga, Vol. 9
Willa's Beast (Icehome, #3)
The Bones Beneath My Skin
Rejoice, A Knife to the Heart
Alpha Breeds (Alpha Horde, #1)
York (The Vorge Crew, #3)
Embrace the Passion (Pets in Space Anthologies, #3)
Tribe Protector (Chosen, #3)
Expeditions, Estimation, and Other Dangerous Pastimes (Claimings, #4)
Ascension: 1 (Interstellar Brides: Ascension Saga #1)
Unleashed: Valos of Sonhadra
Vrehx (Conquered World, #1)
Beth and the Barbarian (Alien Abduction, #2)
Skyward (Skyward, #1)
An Absolutely Remarkable Thing
The Darkest Star (Origin, #1)
Binti (Binti, #1)
House of Royale (Secret Keepers #4)
Blind Fall (Stolen by an Alien, #5)
Sleeping Giants (Themis Files, #1)
House of Darken (Secret Keepers, #1)
We Are Legion - We Are Bob (Bobiverse, #1)
Only Human (Themis Files, #3)
Argan (Dragons of Preor, #10)
House of Leights (Secret Keepers, #3)
All These Worlds (Bobiverse, #3)
Fortunately, the Milk
A Closed and Common Orbit (Wayfarers, #2)
Obsidian (Lux, #1)
Onyx (Lux, #2)
The 5th Wave (The 5th Wave, #1)
The Host (The Host, #1)
Opal (Lux, #3)
Origin (Lux, #4)
I Am Number Four (Lorien Legacies, #1)
Opposition (Lux, #5)
The Infinite Sea (The 5th Wave, #2)
Alienated (Alienated, #1)
Shadows (Lux, #0.5)
Ender's Game (Ender's Saga, #1)
The Power of Six (Lorien Legacies, #2)
The Rise of Nine (Lorien Legacies, #3)

Related Genres

Shaun David Hutchinson
We're not words, Henry, we're people. Words are how others define us, but we can define ourselves any way we choose.
Shaun David Hutchinson, We Are the Ants

Adam Rex
I'm sorry, but -I'm sorry!' I yelped and skipped backward as Gorg advanced on me. 'You were given bad information. Probably some human's fault.' I AM PRINCIPAL ANGER COORDINATOR ASSOCIATE-OF-THE-MONTH GORG FOUR-GORG! HUMANS WILL GIVE ME BAD INFORMATION AT THEIR PERIL!' He didn't look like a principal. He looked like something Hercules ought to be wrestling on the side of a vase.
Adam Rex, The True Meaning of Smekday

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The Old Ones
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