Ben 10 Alien Onslaught is a free Arcade game you can play instantly in your browser, with no download and no registration. How to play: Desktop Move with WASD or Arrow Keys and use mouse for attack direction Mobile Use your thumbs to move and attack direction Follow more instructions inside the game. It renders at 800 by 450 pixels and scales to your window. It joined SaGo Games on October 29, 2026. It is an HTML5 build, so it loads in any modern desktop or mobile browser.
Ben 10: Alien Onslaught is a fast-paced arcade survival game. Aliens are pouring into Bellwood by the hundreds, and the only thing standing between them and the town is a kid with a watch. Survive long enough and the boss shows up: Vilgax in Bellwood, Kevin 11 in the Canyon, and ZsSkayr waiting in the Null Void. Beat them to unlock powerful artifacts, spend your coins in the Plumber Shop on permanent upgrades, and chase 35 achievements. Three arenas, six aliens, fourteen enemy types and three bosses. Easy to pick up, hard to master, and different every single run.