This article is a stub. No source code makes it a bit harder to un-stub-ify.
Variety, a game released on May 22nd, 2020, contains a fork of ZZT by WiL.
There is a customized VZZT.EXE available for use. […] Run VARIETY.BAT to use it. It is not required; the game is fully backwards compatible and will play just fine with vanilla ZZT; however, it adds a number of enhancements to the experience.