Like most other drinking games, Kings has endless variations of rules, and individual drinking groups usually have their own set of card effects. There will be similar rules, but there will most likely always be some that some players have never encountered before. Some games specify that playing a certain card allows that player to make up a new rule which lasts for the remainder of the game. A major variation in the US, UK, Ireland, Australia, New Zealand, South Africa or Canada is that the contents of the King's Cup are drunk by the player who breaks the circle of cards (known as the Ring of Fire in the UK). A popular variation in Australia is the Smoko or Toilet Card replacing Give Two Take Two. In this version, a player needs to possess a Smoko Card to leave the table to smoke or to use the toilet. A player can have multiple copies of the card and they can be traded, typically under conditions such as; the recipient must refill drinks on demand, crawl for the rest of the game, talk in a funny voice, etc. When drinking from bottles of beer, the discard can be placed on top of the beer with two corners of each card hanging off the edge. As this continues, it will begin to resemble a mushroom. Similar to the game
Jenga, if the mushroom collapses, the person who last placed their card or was attempting to do so must drink the entire bottle. If all cards are successfully discarded without the mushroom collapsing, the last person to discard drinks the bottle, and others finish their drinks. In Belgium the game is known as "Circle of Destruction" or "Hardcore Kings". In the beginning a pint is placed in the middle of the circle and everyone has to pour some of their drink in it, from now on this drink is referred to as "Witch's Brew". ==See also==