Onca365 is one of the gambling games using playing cards and is very popular in the United States, Canada, the United Kingdom, Australia, Macau, and Korea. It is a game where you choose either a banker or a player and compete with a high score of 9 or less. It is popular because it looks like the simplest game in a casino, and in fact, the rules themselves are close to sip-and-dip. In a broad sense, it is a card game with 50:50 odds, but draws are variable, and the odds themselves are subtly adjusted to slightly favor the casino.