The New Releases page lists all files hosted in the Museum of ZZT's file archives sorted by release date. This is essentially a full list of all files hosted in chronological order of release excluding unpublished worlds (which may be found on the Upload Queue page).
For many files these dates may not be completely accurate. In instances where the release date cannot be determined with reasonable accuracy, "Unknown" is used instead.
If you use ZZTAE to edit your ZZT games, it will leave a little bit of signature code. This utility removes that bit of signature code so that it looks like it's been created in the regular ZZT editor. Obviously, its biggest practical use is getting around ZZTAE bans on 24HOZ competitions, but that would be very very naughty of you...
This is an incomplete ZZT clone. It has apparently been developed further - see https://web.archive.org/web/20041011090009/http://www.planetzztpp.com/index.html and https://sourceforge.net/projects/zztpp/