Alien Clicker Invaders is a fast-paced clicker action game where your clicking speed is your only weapon against endless waves of alien enemies. Each wave hits harder than the last, pushing your reflexes and upgrade strategy to the limit as you fight to keep Earth in one piece. No downloads, no installs — just open and start clicking.

The game rewards smart play as much as fast fingers. Between waves you collect power-ups and spend earned currency on upgrades that boost your attack strength, fire rate, and damage output. Boss fights are the real test — massive alien commanders that soak up hits and change attack patterns mid-fight. Managing your power-ups at exactly the right moment is what separates survivors from game-over screens. The 2-player mobile co-op mode lets a friend jump in on their phone, splitting the screen and tackling waves together.

Fans of idle clicker games, alien shooter games, and browser-based action games will find plenty to grind through here. Whether you're looking for a quick session or want to push deep into late-game wave survival, Alien Clicker Invaders delivers replayable challenge without any friction. It's a solid pick for players searching for free 2-player clicker games, mobile-friendly HTML5 action games, or co-op alien defense games to play online with friends.