Nana, which was later reprinted as Trio, is a card game in which players are looking for 3 of a kind.
The deck consists of 36 cards, numbered 1-12 three times. Players receive cards in hand, which they are required to sort from low to high, and the remaining cards are placed face down on the table.
On your turn, choose a single card to reveal, either a card from a player's hand or any face-down card on the table. Then, repeat. If the 2 cards are showing the same number, continue your turn - if they do not, return the cards to where they came from and end your turn.
If you reveal 3 cards showing the same number, take these cards as a set in front of you. If you are the 1st player to collect 3 sets, you win.
A player wins immediately if they collect the set of 7s or two sets that add or subtract to seven, e.g. 4s and 11s.
Nana and Trio contain identical components, but nana is labeled for 2-5 players, while Trio is ment for 3-6 players. Trio has a slight change to the rules, with players using all cards no matter the player number. Additionally, you can play in normal mode (winning with 3 sets or the 7s) or spicy mode (winning with 2 linked sets or the 7s). Trio includes rules for playing in teams with 4 or 6 players.