Space Guardian
Shooting
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Free Alien Games Online
The Alien tag on GameMonetize brings together over 280 browser games centered on otherworldly lifeforms, interstellar expeditions, and planetary defenses. Rather than following a single rigid gameplay formula, this collection spans multiple distinct genres. Players will find fast-paced arcade shooters, story-driven platforming adventures, strategic base defense battles, and physics-driven casual challenges all united by sci-fi themes.
254playable games
Space Guardian
Shooting
Space Prison Escape 2
Adventure
Space Pumpkin
Shooting
Space Shooter - Alien Galaxy Attack
Arcade
Space Shooter Alien
Action
Space Shooter Boss
Shooting
Space War 3D
Arcade
Space Warrior
Arcade
SpaceShooter
Shooting
Squad Goals: Soccer 3D
Soccer
Squadron Hero : Alien Invasion
Adventure
Squid Game Challenge 3D Survival Master
Arcade
Squid Hit
Hypercasual
Squid impostor Golden Key
Arcade
Stickman Gun Battle Simulator
Fighting
Supermarket Shopping Girls Game
Arcade
Survival On Worm Planet
Hypercasual
Tap Break Game
Boys
The Fire of Fenix 2
Arcade
The Invaders
Shooting
The Running Sheep Game
Hypercasual
The Wall Breaker
Action
The Witcher
Adventure
Tower Defense: Dragon Merge
Hypercasual