Rummy is indeed commonly played with a standard deck of 52 cards. Here’s how the game typically works:

1. Setup: The game is usually played with 2 to 6 players. Each player is dealt a specific number of cards from the shuffled deck, usually 10 cards for 2 players, 7 cards for 3-4 players, and 6 cards for 5-6 players. The remaining cards are placed facedown to form the draw pile, and the top card is turned face-up to start the discard pile.
2. Objective: The goal of Rummy is to form sets and sequences of cards in your hand. A set consists of three or four cards of the same rank but different suits (e.g., 3♠, 3♦, 3♥), while a sequence consists of three or more consecutive cards of the same suit (e.g., 4♠, 5♠, 6♠). Jokers may be used as wild cards to substitute for any other card in a set or sequence.
3. Gameplay: On their turn, players have the option to either draw a card from the draw pile or take the top card from the discard pile. After drawing a card, the player must discard one card from their hand face-up onto the discard pile. The turn then passes to the next player in clockwise order.
4. Forming Sets and Sequences: Throughout the game, players aim to form valid sets and sequences in their hand. They may also rearrange cards in their hand as they draw new ones to optimize their sets and sequences.
5. Going Out: Once a player has formed valid sets and sequences in their hand, they may choose to “go out” by discarding their final card onto the discard pile. The player must then declare that they are going out, and the hand ends. The remaining players tally up the points in their hands based on the cards they are holding.
6. Scoring: In Rummy, cards are assigned point values, with numbered cards (2-10) worth their face value, face cards (J, Q, K) worth 10 points each, and Aces worth either 1 or 11 points. The objective is to minimize the number of points left in your hand when someone goes out.
7. Winning: The player with the lowest total points in their hand at the end of the game is declared the winner.