On a related note, one of the more interesting lightning talks at YAPC this year was about the Tactical Amulet Extraction Bot, a framework for programmatically playing nethack. Here's a blog about it: http://taeb-blog.sartak.org/

And the code: http://search.cpan.org/~sartak/TAEB-0.03/lib/TAEB.pm

I think it's been discussed here at HN once or twice, as well.