Triple Triad is a card game similiar to dominos that lets party members duel non-player characters (NPC's) with cards they have in their possession. The winner of the game gets to select a card from the playing hand of their opponent.
There are three ways to obtain game cards. Characters can obtain cards by winning a challenge against a NPC, by defeating monsters, or by using the "Card" command during battle. The "Card" command is an ability that can be leared only by a GF and must be Junctioned prior to battle.
The basic rules of the game are simple. The character and the opponent will start with a hand of five cards each. Each card represents a point. The character gains or loses points as they capture or lose cards. After the computer randomly selects who goes first, each player places one card at a time on the 3x3 grid until all nine slots of the grid are filled. The winner of the game is the one who possessses the most points at the end of the game.
Each card has four numbers. Each number represents the strength of a side on the card, and can have a value between 1 and 10. If the player places a card on the grid next to a card that has a smaller number on the side adjacent to the player's card, the weaker card will be captured by the player and converted to their color. At the same time, the player gains a point, while the opponent loses a point (points are based on the number of cards a player currently controls, counting captured cards and cards not yet in play).
There are four types of cards a player can collect
The most common cards are monster cards, followed by boss cards, GF cards, and character cards. The more powerful a card is, the harder it is to find. Later on in the game, an ability can be leared by the GFs that lets the player convert cards in his or her possession into rare items needed for weapon upgrades and magic refinements.