Candy Crush is one of the most popular games at this moment. A lot of people are addicted to it and spent hours per day trying to get to the next level.
In case you do not know Candy Crush: it is a very simple game: you need to move confectionery on a grid to sort it. Then the candy disappears, but is replaced by other candy. Each level has a different grid and a different challenge. There is a connection with Facebook, so your friends can see how you are progressing and it is also possible to help each other via this social media platform.
Candy Crush is a lucrative business for the makers of the game, because the app yields around 500,000 euros per day with in-app purchases, which means that the popular game generates 180 million Euros on an annual basis! The game itself is by the way free to download.