While browsing around the Internet, I looked up "favorite Commodore 64 game" and found that a lot of people really liked M.U.L.E.
I heard of the game, of course, but I don't recall ever playing it when I was younger. I booted it up and found out quickly I have no idea how to play. I looked up instructions and found this page. I think tomorrow I will dive in and learn how to play. It seems interesting.