Yu-Gi-Oh! Online

Players duel using cards, in the same way as in the Yu-Gi-Oh! Trading Card Game. Each player starts with a 40-60 card starter Deck. After that, players need to duel to get more cards. Whenever a single game (1 duel) is played, both players get 1 card from a card pack of their choice. Whenever a match game (2 or 3 duels, first to win twice wins) is played, both players get 3 cards from a card pack of their choice. (Yu-Gi-Oh! wiki)