Currently, I'm sitting at an airport lounge waiting for my flight.  I've got my laptop out, I've done a bunch of emails and need something to pass the time.  I like some kinda mobile game that is fast, not too fast, is difficult,, but not unbeatable; something that requires some amount of strategy to it. I've always liked those tower defence kinda games, but I hadn't played one in a while, and with the recent launch of Kingdom Rush 6:  Genesis, I was given the opportunity to test it out and, I am enjoying it. I had played some of the earlier Kingdom Rush games when they all came out and somehow it had slipped off my radar (I recall getting a bunch of them through the Humble Bundles in the past). 6 is now out and runs at just under $10 and is definitely worth its price.  This is the kind of game that an ad supported theme would just ruin it, and for the $10 you're going to get hours and hours of use, so rationalizing just pennies for time is a good use. The premi...