It's a classic Old Maid/Black Peter card game fashioned as a death game. The card game was implemented well enough, with it being largely dependant on bluffing and deciphering visual or verbal tells to deduce who has the joker and which card it is. It's very basic, but at least it's not just pure luck. One huge point against it is its English localization. It's simply atrocious and impossible to read. So be prepared to skip pretty much all the dialogue and focus only on the gameplay, with only some contextual clues for the plot taken from the static images from cutscenes. It's pretty bad but playable. At least it's just a 1$ game, just don't expect anything above mediocre in terms of gameplay and be prepared for it to be clunky and of lower quality on the technical side.