There are 3 kinds of lotteries: Spend 10 Gold Coins to make a Normal Draw, 1 prize each time, spend 45 Gold Coins to make a Medium Draw, 2 prizes each time, spend 120 Gold Coins to make an Advanced Draw, 3 prizes each time. The higher the lottery's level is, the better the rewards will be. Rewards include plenty of Resource, Troops, Heroes and buff effects. You will have one free lottery chance every day. By donating 2000 Bronze Coins or 1 Gold Coin to the Alliance you can get an extra one.