D'oh! Well it wouldn't be the first time a problem was "specific to my machine!" Since I discovered it, how about naming the bug after me? To report: the map room works fine in Firefox!
I really like the game and I support artists, but I've never bought a Pico-8 game. Do I need to install the PICO-8 Fantasy Console to play it? Cheers! :)
Glad it worked well in Firefox!
Normally, I add Windows/Linux/Mac executables as downloadables for my PICO-8 games, but I see that for some reason I didn't do this for Dank Tomb. I'll make a note of adding those - once they're up, you can play without PICO-8 just by using the standalone executables. I'll try to put up the executables some time next week, since there is really no reason for them to not be here.
If you want to play the original cartridge file, you do need PICO-8 to load it.
