KansasFest, the venerable Apple II gathering running for a quarter of a century, hosts a recurring contest called "HackFest." The winner this year was none other than Margaret Anderson, the author of four Eamons (Peg's Place, The Beginner's Forest, Treasure Island, and The Pirate's Cave), who submitted an "Eamon mapper" as her entry. While the site is not presently hosting a disk image of her winning entry, it appears that disk images of entries are posted from time to time at http://www.kansasfest.org/hackfest/.
Margaret Anderson also wrote an article "Mapping the Unknown: An Adventure in Eamon" about her entry in the September 2013 issue of Juiced.GS. I don't have a subscription to Juiced.GS, so I'm unable to describe the contents of the article. But I'd love to hear a synopsis in the comments (or see a disk image of Ms. Anderson's entry!).