Mini Troopers! Send your cute little dudes to shoot other cute little dudes. Fun, low-impact web game.
There’s sort of a chain-letter aspect to this one, where you get people to sign up through your account, and thus get points to upgrade or get more little dudes. The main site redirects to a random account. If this post gets any interest, I’ll post my accounts that could use recruits, if that’s ok.