In its purest form, bingo involves a dealer calling out numbers as players check whether they have the winning combination. Players cross out numbers on cards and shout 'Bingo!' when they get the full combination. In casinos, it is played with cards which are discarded as the dealer calls out until a winner is found.
South Korea is well known for the K-pop and Korean culture revolution that is currently sweeping the world. A highly networked country, with some of the fastest internet speeds in the world, Korea is a place where online gaming is easy thanks to advanced mobile phone networks and a tech-savvy population.