So, I use Dungeon World to replicate D&D adventures all the time. It's the easiest sort of conversion project. That said, sometimes it's fun looking at a piece of pop culture (a movie, TV season, video game) and think "what would that look like for Dungeon World?"
Well, we've been all OMG DIABLO crazy over here at Dungeon World International Headquarters and so we put together a little mini-supplement as an homage to the worst town in the history of towns. We call it Poor Tristram and you can grab it here;
http://dl.dropbox.com/u/3269630/Poor_Tristram.pdf