Brilliant concept and I love the aesthetic. My only complaint is pedantic and stupid, but as a gopher lover I would be remiss if I didn't mention it. The gopher URLs you're using in-game don't have item types. If you're linking to another menu it would be something like gopher://192.168.1.150/1/all (see the /1 bit). If you were linking to a text resource then it would be /0. See Wikipedia for more types.
See, I said the comment was stupid and pedantic, didn't I?
Anyway, don't ever stop working on this. It's brilliant and I want more!
tomasino
gopher://gopher.black