The engine for ZZT was so quirky with lots of limitations, so it was fascinating to see the ideas that people came up with to make elaborate games like RPGs, survival horror, etc.
People would ship games they called toolboxes, which had unique and interesting objects or unnaturally colored blocks that you could use for your own games.
There was a series called ZZTV that was an anthology of small games, stories, and teenage rants https://museumofzzt.com/article/422/closer-look-zztv-3