Real money wagering was possible in these cash-based versions, which increased the level of competition and excitement. Rummy's history underwent a sea change when cash games reonline slots real money usaplaced casual play, drawing in a larger player base and creating a new culture around the game. As the 20th century went on, cash rummy games gained popularity in social settings like clubs and private parties. As rummy tables started to show up in casinos all over the world, the expansion of gambling establishments also aided in the game's expansion.