I have figured out a method to do this with, but it's pretty tedious to do. Looking it up online will bring up results of map viewers, but I want to play the game, not cheat my way through. Looking around for a solution for how to erase this fog blocking the map, one will find very scarce resources explaining how to do it. When looking at a map of a Terrarian world, a lot if not most of the map is covered in black as a 'fog', as it were. Hello, everyone! I have a very specific question, so bear with me here.