You need to survive in a limited world on islands full of troubles and you need to protect yourself from these troubles while earning money that you can use to buy hats. Also, the islands move and they will disappear when they reach 40 along the X coordinate. Also, the coordinates can be turned off by pressing the G button and turned back on by pressing F. The coordinates will help us understand where we are and we don't need to go further than 40 and -40 along the X and Y coordinates