Sorry. I could have been clearer. I thought Clem was saying that he found the Wumpus code in v5/v6. Now, I see that he was just talking about the crt files. When I said I couldn’t find the source prior to v7, I meant the wumpus source :). On another note, porting the v7 code to MacOS is tricky, lots of minor differences, but I’m giving it a go. Prolly easier to just figure out what it’s supposed to do and do it with modern idioms, but it’s a fun puzzle to try to replicate the same functionality with only minor adjustments. Will