Coin Crypt is a roguelike strategy game in which attacks, heals and special abilities come from coins. You fight using coins and die if (when) you run out. Sometimes you unlock new types of coins that show up un your next games. You can also grind to unlock new characters, because every bad game developer knows that grinding is the way to artificially lengthen game length.

It's not an adventure game, there's no deckbuilding and the RPG-tag is especially puzzling here. It's yet another dime a dozen (no pun intended) grindy roguelike with terrible graphics, boring gameplay and a midly amusing gimmick. So if you love those, definitely get this. ಠ_ಠ