I've always wanted to play a mapping game! I really love the idea of this game; it's very original, though quite difficult, even on easy. It might benefit from a tutorial level where the time limit is either infinite, or very long, just so the player can learn the game.
I think it fits the theme really well since you are literally trying to discover where you are on the map. The graphics feel authentic, well-done, and draws you in immediately. The music/sfx fit naturally with the aesthetics.
Really enjoyed playing and would definitely check it out again if you decide to go further with it.