Objective: Achieve a hand value as close to 21 without exceeding it. Card Values: Number cards are worth their face value, face cards are worth 10, and Aces can be 1 or 11. Gameplay: Players are dealt two cards and can choose to "hit" (take another card) or "stand" (keep their current hand). Players can also "double down" (double their bet and receive one more card) or "split" (split a pair into two hands). The dealer plays according to house rules, typically hitting until reaching 17 or higher.