Bugs vs Tanks! is a great way to spend an hour or so over the course of a few days. It can be as casual or as challenging as you wish to make it, and you’ll have a lot of fun figuring out the play-style that suits you.
If you’ve ever wanted to lay siege to an ant hill in a microscopic pink tank, then BUGS vs TANKS! is your game. It’s by no means perfect, but it’s a hundred times more enjoyable than that tank museum that I visited last summer.