http://www.bay12forums.com/smf/index.php?topic=59026.0
It includes the game.
Basically, you generate a world complete with a history, then you locate a site, get your expeditionary dwarves and items together, then go and build a fortress.
It's insanely difficult, the learning curve extends somewhere past God's left nipple... but it's absolutely hilarious. Literally... anything... can happen!
