ZZT was (is?) amazingly accessible and versatile. I created many worlds in it, most small, some big. I even tried to emulate the classic 1983 DOS game Digger an

ZZT was (is?) amazingly accessible and versatile. I created many worlds in it, most small, some big. I even tried to emulate the classic 1983 DOS game Digger and got pretty far before running into the limits of what it could do. I won't say I learned programming from it, because that started with GW-Basic, but it definitely expanded my understanding at a crucial time in my development.