About Alien Quarantine — Free Online Browser Game
Survive 20 missions in Alien Quarantine, a sci-fi top-down shooter set aboard a research station overrun by alien life. Clear three escalating waves, dodge enemy fire, and defeat a unique, larger boss at the end of every level. Alien types and visual designs c
Controls & How to Play Alien Quarantine
WASD Arrow Keys Move Mouse Aim Left Click Fire Right Click Throw grenade E Use consoles collect items and activate exits Esc Pause Touchscreen Use the on-screen movement fire grenade and interact controls
Frequently Asked Questions
You can play Alien Quarantine directly in your browser on Lezuss Games with no downloads or sign-ups required. Simply click inside the game screen above to start playing immediately.
WASD Arrow Keys Move Mouse Aim Left Click Fire Right Click Throw grenade E Use consoles collect items and activate exits Esc Pause Touchscreen Use the on-screen movement fire grenade and interact controls
Yes! Alien Quarantine is built with HTML5 and WebGL, making it playable in any modern web browser across Windows PC, Mac, Chromebook, Linux, iPhone/iPad, and Android devices.
Yes. Click the "Fullscreen" or "Theater" button on the bottom right corner of the game bar to expand Alien Quarantine across your entire screen.