There are no changes to the card deck compared to classic Gin Rummy. If you play multiple rounds, the same teams will remain throughout all the rounds at the same table. The four-player mode at the Gin Rummy Palace will be set up similar to what you see here.
However, each player will have their own turn, so only one player will be playing at a time in clockwise order.
The particular feature here is that you will be able to see all the hand cards of your team. Your teammate will always sit across from you. In Four-Player Gin Rummy, you will compete in teams of two players.
Players and Teams in Four-Player Gin Rummy