This article is a stub. In fact, even the preserved copy is a kind of stub. I'm glad to have any copy at all, though!
Z2 is a successor to ZZT developed by Carlos DaSilva, initially called ZZT2 but renamed upon Tim Sweeney's request. The final release, 0.61 Beta, was released in October 1996.
It is notable for being a tile-based, not text-based, attempt at a ZZT successor which nonetheless shares a clear design lineage.