Underground Castle is a strategy game that simulates management and adventure. In the game, players need to build their own cities, recruit heroes, organize expeditions, go deep into the huge underground cities to take risks and plunder, build the strongest weapons, and leave your name in the most sinister maze!

First of all, if you want to get a palace card, enter the crescent county scene and click the old pier, and then click the option to enter the pier in the pop-up dialog box. After entering the copy of the old pier, it will fight with BOSS Ezra. In this way, after successfully defeating BOSS Aisla, you can get the palace card.