While the headline game, Mü, is the main attraction, this deck of custom cards comes with rules for several games:
Mü is regarded by many as one of the best offerings in the trick-taking genre. Players reveal cards to declare their bids: the highest bidder becomes the Chief and the second highest bidder is the Vice. Both the Vice and Chief choose a trump (either number or suit), and then players try to capture tricks to score the most points. The Chief chooses a partner and tries to cover the bid to score bonus points, while the Vice and remaining players seek to stop the Chief from reaching his goal.
The deck consists of 60 cards in 5 different colored suits. Each suit contains cards numbered from 0 to 9, with two of each the 1 and 7 cards. Cards also have 0, 1, or 2 triangles printed on them to show the point value of that card.
Mü and Lots More includes a a tweaked version of Mü and a different set of games.
2020 DiceTree Korean edition (titled The Last Panther + 6 games) includes Calcory and another new climbing card game 기드라(Ghydra) by Changhyun Baek.