Candy Crush

In the game ,players complete levels by swapping colored pieces of candy on a game board to make a match of three or more of the same color, eliminating those candies from the board and replacing hem with new ones, which could potentially create further matches. Matches of four or more candies create unique candies that act as power ups with large board clearing abilities.

Candy crush saga considers one of the first and the most successful use's of a medium model. While the game can be played completely without spending money .players can buy special action to help clear more difficult board,from which king makes its revenue _at its peak the company was reportedly earning almost million per day.