I watched the discord when you first came up with this mechanic, and I've been interested to give it a go since! Great job :) I agree with everyone in that the concept is really cool, but I think some added touches here and there could make it easier - for example some extra sound component for when you're closer to certain things. Definitely need the rulers, before I turned those on, I definitely felt like a Bat in Hell, not knowing where to go!
Great job :)