Alien Invasion

Blast wave after wave of descending aliens, dodge their fire, and hold the line before they reach your cannon in this classic arcade shooter.

Alien Invasion drops you behind a lone cannon at the bottom of the screen while rows of pixel aliens march side to side, dropping lower each pass. Your job is simple: shoot them before they land. But the moment you think you've got it dialed, a stray alien breaks formation, dives straight at you, and you're frantically jabbing the mouse to snap off one last shot. The tension builds as the swarm thins out—fewer targets actually makes them harder to hit because they speed up and jitter unpredictably. The controls are barebones in the best way. Mouse or tap to fire, and that's it. No upgrade trees, no health bars—just your reflexes against an endless descent. I found myself restarting over and over, convinced I could squeeze one more wave out of a run. The minimal art and pulsing sound effects (yes, this version keeps the retro beeps) give it that authentic cabinet feel without needing quarters. The difficulty curve starts gentle but turns merciless around wave five, when the aliens start firing back in clusters. What keeps me coming back is the pure arcade loop. Each wave clears with a satisfying chime, then the next formation drops lower, tighter, faster. There's no save system, no mercy. If you die, you start from wave one. That might sound punishing, but it's exactly why a quick session can turn into an hour. For anyone who grew up pumping tokens into a stand-up machine, this feels like coming home.

Mouse or tap to play.

Aim for the columns on the edges first; the aliens bunch up there and you'll rack up points faster. Don't chase the diving aliens with your cursor—let them come to your crosshair and fire short bursts. Keep your cannon moving laterally between shots; static targets get clipped by return fire. Prioritize the bottom row of aliens: they fire more often and the closer they land, the less time you have. Save your quick taps for the final alien in a wave—it speeds up and zigzags, so patience beats panic.

Q: Is Alien Invasion free to play? A: Yes, Alien Invasion is completely free in your browser with no hidden fees or paywalls. Q: Can I play Alien Invasion on mobile or tablet? A: Absolutely. The game responds to touch, so you can tap the screen to fire on any mobile device. Q: Do I need to download or install anything to play? A: No downloads needed. Alien Invasion runs directly in your browser as an HTML5 game. Q: What are the controls in Alien Invasion? A: Move your mouse or finger to aim and click or tap to shoot. It's that simple. Q: Can I save my progress and continue a run later? A: No, Alien Invasion is a classic arcade loop. Each run starts from wave one after a game over. Q: Is there a pause or mute option in the game? A: The game has minimal options. You can usually mute the sound by clicking the speaker icon, but pause may not be available.