It does it for I think most other people as well. No idea what it's actually connected to but if I left the game and did nothing for a while then that would appear. All other times it seemed random.
Oh and something cool would be when you're exploring you could find dropped maps in the Forrest and it would reveal a random radius around that spot?
Or another idea is that when exploring you have a rare chance of bumping into tribal villages. Like tee pee tents. Then you could raid their village or become friends or something. Something along those lines? I dunno really just something to give you more of an incentive to explore. :D
That kind of stuff would be really cool.
Oh, and another thing. Making food requires ore as well as fish. I don't quite understand why. It would make more sense if it required wood, so that you could actually cook it.
Yet another thing. There isn't any way to save the game.
I have too much to say.
The beeping from square to square is annoying as heck.
If it's possible, water should be less common, but when it is discovered, it is more likely around itself? That would create larger bodies of water.
When you cook, it uses up all of your ore and fish. This bugs me.
The errors keep you from progressing very far in the game.
The mines could be a little more cave-like. They look man-made right now.
The trees could be just a tad larger, in order to make it more realistic for them to be covering stuff up.
When you uncover water, it should show you the entire body of water. That would get rid of most of the trees-on-water problem.