This is one of the best online games available today.The game might seem a bit different and difficult to understand at tge beginning but once you start playing you cant resist yourself even for a second.The best part is that the games keeps on updating with new troops and defences within specific times which keeps interest of the players.The players have to upgrade their attack and defence.The game progresses by attacking other players in the game and making our defence stronger.Try it once but be careful you might get addicted.