A city is hidden at the centre of the dial. Each arrow points from it towards a city you can see.
Each day has five hidden cities to find. You have 5 lives for the whole day, and every wrong guess costs one.
Stuck? Show more cities, or measure how far one of them is from the hidden city. You have 5 of each for the day. You can also skip a city, which costs no lives but scores nothing.
Endless mode keeps going, with 5 lives and the same hints for the whole run.
Directions are as they appear on a flat map, so north is straight up.