For now when you go straight, you get a warning that you are going "out of the map" so to say, and that there will be nothing to find ahead. How about instead you made the world round, and when you reach an end of he map, you get to the opposite side? So that the planet would be spheric and not flat? Exiting west would bring you back to east, exiting north would bring you back to south. Vote and UpVote if you agree.