Graeme Gregory’s port of the ADV770 version of Adventure or Colossal Cave now available to download zipped from http://www.dilwyn.me.uk/games/adventures/index.html (Adventure Games page on my site)
Remember that the executable alone is a massive 1.2MB, so it needs a minimum of a Gold Card or an emulator set to 2MB or RAM or more.
Wonder if this takes the title of the largest QL executable so far?