Players aim for the deepest levels of the dungeon while freely building their own deck.
It is a roguelike style game (if you die, you start from the beginning), and you can enjoy a different adventure every time with 342 different cards in total.
Even if you die, you can get gold coins to strengthen your deck.
Various sub-events await you depending on the cards. Many challenging boss monsters are also available.
For detailed game contents, please read the manual.