Rummy is not an alien name to anyone who plays card games. Rummy games originated in the late 19th and matured in early 20th century in Mexico by the name Conquian. Although there are several sayings about the exact origin of rummy game but what is important is that today Rummy is played all over the world and people in different countries have come up with rummy variations and now are playing rummy game per their convenience.
This page briefly explains different types of rummy games, rummy rules and variations:
Indian Rummy is a refined version of the original rummy and is usually 2 deck of cards and the printed joker from the deck of cards is also used in a typical rummy game. This way there are 2 jokers in the game; one which is randomly selected before every game and second is the printed joker.
13 cards rummy is the most popular form of rummy game played in India. As the name suggests this rummy game is played with 13 cards and played with a single joker (selected randomly). 13 cards rummy is usually played with a single deck of cards and the printed joker from the deck of cards is not used in 13 cards rummy.
Gin Rummy is one of the most popular forms of rummy and is played in mainly in European countries. The Gin Rummy game is generally played by two players, each receiving ten cards. In India, Gin rummy is not played as Gin rummy but played as a rummy variation.
Kalooki is also spelled as Kaluki or Kalookie and these names are used by different people for different types of rummy games. Kalooki is a popular game in North American and European countries specially Jamaica and Greece where they spell it as Kaluki.
Oklahoma rummy is a variation to Gin rummy and is played between 2-4 players and is played with a standard deck of 52 cards.
As the name suggests, Oklahoma rummy is a variation to Gin rummy and is played between 2-4 players and is played with a standard deck of 52 cards. 500 rummy game is also called 500 rum or Pinochle Rummy.