A fantastic read, and really interesting to see the use of Forth. I remember Forth having a bit of popularity in the 80s. This was such an amazing game, especially in that you felt like the world was huge with the encouragement to just explore.

The other game this reminds me of is a game for the TI99/4a called Tunnels of Doom. It was a cartridge game that also had a floppy or cassette data load. It had a dynamic dungeon creation so every time you played the game you got a new unique experience. That would be an equally challenging one to reverse engineer due to the oddity of the GROM/GPL architecture in the TI99/4a.