Decktet is not a game per se, but rather a six-suited deck of 45 cards that can be used to play dozens of different games. The Decktet is a game system released under an open license. See here for a ranked list of games that are played with Decktet cards: https://boardgamegeek.com/geeklist/32735/decktet-games-ordered-by-rating Magnate, Adaman , and Emu Ranchers are among the most popular of these games: https://boardgamegeek.com/boardgame/41090/magnate https://boardgamegeek.com/boardgame/88147/adaman https://boardgamegeek.com/boardgame/39704/emu-ranchers The core of the Decktet is the 36-card basic deck. Each suit has 10 cards, a thing accomplished by most of the cards being double-suited. Most of the cards also have a name and illustration. There are also 9 extended deck cards. Like Jokers in a traditional deck of cards, they are used in some games but not in others.