So I was wondering if anyone had a chance to own, read, play, any of the Apocalypse World Engine games. I stumbled on to them not all that long ago, and am curious.

It seems that there is the original Apocalypse World Home Page

A space opera style one Uncharted Worlds Home Page

And of course a Dungeon Crawl one Dungeon World Home Page

I am absolutely certain that there are more options out there. It seems I am quite the Johnny Come Lately to the party. But I was curious what you good folks had to say about the games and whether or not I should plunk down virtual currency to acquire the pdfs?