FarmVille was one of the most addicted games ever made. It was a huge success and it received multiple awards. Its sequel FarmVille 2: Country Escape is a great update to the original one with better graphics and features and ability to play the game offline.
As you move ahead in the game, it becomes difficult to maintain the farm and it also takes a while to update the farm. With the use of keys, you can make the updates faster. However the number of keys are limited so you have use them wisely. But there is a cheat available which will get you unlimited keys. Follow the guide below.