Alien Games

Encounter the unknown with free alien games on Playupi. Battle extraterrestrial invaders, explore alien worlds, or play as the alien yourself, all directly in your browser with no downloads required. Alien games blend science fiction with action, strategy, and adventure for out-of-this-world experiences.

From classic space-invader shooters to modern sci-fi adventures, our alien game collection brings the cosmos to your screen on desktop, tablet, and mobile.

Alien invasion defense

Earth is under attack and you are the last line of defense. Shoot down waves of alien ships, deploy turrets, and protect humanity from extraterrestrial threats in intense tower-defense and shooter games.

Space exploration

Travel to distant planets and discover alien civilizations. Exploration-themed alien games let you pilot spacecraft, land on strange worlds, and uncover the mysteries of the universe at your own pace.

Alien survival horror

Dark corridors, strange sounds, and creatures lurking in the shadows. Survival horror alien games keep you on edge. Conserve your resources, stay quiet, and hope you are not the next victim.

Play as the alien

Flip the script and become the invader. Control alien creatures with unique abilities, abduct humans, infect worlds, and wreak havoc. These games let you experience the fun of being the bad guy from outer space.

Sci-fi shooters

Futuristic weapons, alien enemies, and neon-lit battlefields. Sci-fi shooters combine the alien theme with fast-paced action, giving you an arsenal of high-tech weaponry to deal with intergalactic threats.