A list of social casinos in the USA includes Big Fish Casino, DoubleDown Casino, Slotomania, Zynga Poker, and Jackpot Party Casino. These social casinos offer a variety of games such as slots, poker, roulette, and blackjack. Players can enjoy these games for free with virtual currency or opt for in-app purchases for additional features. Social casinos provide a fun and interactive gaming experience without real money gambling. They often have social features like chat rooms, leaderboards, and virtual gifts to enhance the social aspect of gameplay.