> We already have build tools for infocom against the Z-Machine The TOPS-20 versions of ZILCH (and ZAP) don't seem to be available. The ITS version of ZILCH f

> We already have build tools for infocom against the Z-Machine The TOPS-20 versions of ZILCH (and ZAP) don't seem to be available. The ITS version of ZILCH from MIT has been recovered, but (from what I understand) it is an earlier version, and the TOPS-20 version which Infocom used later isn't publicly available, and that later version had added features. In any case, its copyright status is murky, Microsoft could clean up that murkiness.