Reward claiming system: Every WHEEL you earn goes to an internal wallet and can be claimed later. To have a sustainable game economy we implemented a tax system where a 70% fee is added when you want to claim your reward, this fee is reduced by 5% per day until it reaches 0%. This means if you want to claim your rewards the first day you'll pay a 70% fee, if you want to claim them the second day the fee is 65% and so until you reach 0% the 15th day.