I have just managed to play my game to completion with a score of 100/100. Thank goodness for that. It's still pretty rough around the edges, but I can fix that later. Now I can start on the graphics.
Unfortunately, the very last move resulted in some sort of Adventuron internal error that has me baffled. The error is "DEBUGEXCEPTION: Class $S323: (InternalError): too much recursion". This came as a complete surprise, as the final chunk of code just checks the score. If you've got the full score, it does a print statement followed by a win_game statement. There's nothing fancy and I'm not doing any recursion anywhere. I'm using Beta 65n. Has anyone else struck anything like this?