It's a defense-upgrade game! During post-apocalyptic earth, the best way to be on top is to show brute strength and power, not to mention a good-looking tower which makes everybody so envious they want it for themselves.
Gear up, upgrade your tower and defend it like you’ve never done before and prepare for a serious beatdown. There will be hordes of wastelanders who will want to take wot is urs. Wot better way to show them hospitality than to blast them into oblivion.