Minecraft has a limit, so does this game. If you go too far I'm sure it'll break the game or cause it to crash. Also among the bugs I've seen, there's one if you go to the opposite side of the entrance in the cemetery, the fountains will stop working properly if you go far enough and if you go past the evil house and continue forward very far (Around level 210), monsters will stop spawning. Also regardless of where you go, the ground will start to vibrate after a threshold, I wish the dev would have just placed a wall to prevent players from going too far.