Dungeon Defenders II

I got this on my first match played, during the tutorial mission of the campaign. This will likely be the first achievement you get, even before the "Die Once" achievement. The thing is, you can't die on the first campaign mission - believe me, I tried. You will get to 1 health and not die. So, you might as well try it on hard difficulty (P.S. It is not hard and you can't die).