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Aliens

Featuring extraterrestrial beings, these games often explore themes of space travel, alien invasions, or interstellar diplomacy. Encounter mysterious life forms, defend against alien threats, or uncover the secrets of the cosmos in these otherworldly adventures.

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New & popular free prototypetagged Aliens (713 results)

Explore prototype games tagged Aliens on itch.io. Featuring extraterrestrial beings, these games often explore themes of space travel, alien invasions, or interstellar di · Upload your prototype games to itch.io to have them show up here.

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You have become the last member of the resistance against the alien invasion.
Shooter
You're a delivery driver, but in space!
Action
Play in browser
Alien Invasion of a Medieval Kingdom
Platformer
Adventure
Oh my cow ! Les aliens veulent instruire nos vaches. Crévindiou j'les laisserai pas faire !
Survival
Explore unique generated planets from the perspective of a space probe.
Ayuda a Gomigu! a reunir de nuevo un mundo fragmentado por extraterrestres
Outlast the cosmic chaos in Alien Survivors – where every second shapes your destiny!
Survival
Play in browser
Sci-Fi Horror Environment - Explore & discover why the Mars research station was abandoned
Adventure
Daniel eat CLOSI City
Platformer
Save the World
Shooter
IT'S TIME TO COMBAT SUPERNESS
Fighting
Play in browser
Pilot spider mechs to fight aliens in a post-apocalyptic world. #GameCreatorJam2024
Shooter
The aliens have mutated all the farm animals. Horseus must now defeat the aliens to save the stable.
Role Playing
Play in browser
Pachinko tribute to Old Games
Puzzle
Play in browser
Protect, feed and keep Blob happy.
Survival
Play in browser
Action
Play in browser
Para salvar gatinhos indefesos de aliens que invadiram a TERRA, LukeOld23 avançará mesmo estando debilitado!!!!
Platformer
Feed the Void or get eaten yourself
Action
Play in browser
Fly around and get jiggy
Action
Shooter
Play in browser
A puzzle game where you play an alien whose spacecraft can only abduct cows if they are isolated from other animals.
Puzzle
Play in browser
KICK HEISHEKEN ASS
Action
Play in browser
Execute the protocol
Strategy
Evil beep boop :D
Shooter
Play in browser
Shhhhh... it's a secret
Puzzle
Fantasy, Military, Sci-Fi Tower Defense game.
Strategy
Race against time to reach the water and gather diamonds!
Survival
Play as a friendly robot assembling ice creams for excited customers!
Play in browser
Land, Drill, Kill Bugs, Escape
Play in browser
Romance the hottest lifeforms in the universe... aliens, and help them escape from Area 51
Action
Post-terraforming, humans vanish. Forge activates a Computerized Human Interface Program, unprepared for the search.
Play in browser
A forging and fighting game build for Godot Wild Jam 68.
Survival
Play in browser
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