Cube Tower is a free online game on shtoss.com. You can play Cube Tower in your browser absolutely free. The united alien armies invaded the Earth. They do not want to negotiate. Their major task is complete enslavement. Using unknown technologies that nobody has ever saw before, they invade new countries with the speed of light. In your hands there are united military forces of the whole planet, as well as the latest military developments - the deadly turrets and bombs.