I was actually looking for one of these but could not find one, although I'm about 95% sure there was one printed in a magazine "back in the day" so to speak, so I just quickly whipped one up.
It simply (as the title indicates) lists the room names. To use, load the game code (don't forget to issue a CLEAR first!) then load and run this.
jswlistrooms.tap 187bytes 95 downloads