Event Mines are short-term mines with special themes, they usually run just for 5 days or sometimes longer. You complete objectives in the themed mine to win rewards. In each Event Mine you can win badges which are displayed in the Event Badges island on your world map. You can earn a Participation Badge, Bronze Badge, Silver Badge, Gold Badge or Elite Badge.
 
To see the latest Event Mine, you must have the latest version of the game and you must have unlocked the 5th mine shaft in the Coal Mine.
 
Please note: you do not take your themed Event Mine cash with you when the event ends.