The Castle Dungeon is an idle game that takes place in a dungeon where there are numerous monsters and your task during the game play will be to kill the monsters by continuously clicking on them. Killing the monsters will yield coins that you ought to collect. Let the collected coins can be used to upgrade your skills and hire units that will assist you in your fight against the monsters. This is such an engaging game that you can go on playing for many hours without getting bored. It truly is a fantastic online game.