Match the month
Play a card that shares a month with one on the field to capture both.
Play Hanafuda Koi-Koi online — free, no signup
Thousands of players · no signup · 11 languages · Android app (iOS coming soon)
What is Hanafuda Koi-Koi?
Hanafuda are traditional Japanese flower cards: a 48-card deck with one suit for each month of the year. The most widely played game with that deck is Koi-Koi — a two-player matching game where you capture cards that share a month, build scoring combinations called yaku, and choose whether to bank your points or call “Koi-Koi” to keep going for a higher score.
Hanafuda Legends lets you play Koi-Koi online free in your browser with no signup and no download. Join ranked matchmaking against players worldwide, practise against the computer at several difficulty levels, or open a private room and share a link with a friend. The experience is available in eleven languages, with an Android app live and iOS coming soon.
New to the rules? Start with Learn to Play for turn flow and scoring, then read individual yaku pages such as Animals (Tane), Five Brights, and Ino-Shika-Cho so you know which combinations to chase at the table.
How Koi-Koi works
Collect yaku
Sets like 猪鹿蝶 (boar, deer, butterfly) score points when you capture them.
Stop, or call Koi-Koi
Bank your points now, or risk continuing for a bigger score.
Ways to play
Ranked
Elo rating, monthly seasons, badges.
vs Computer
Four difficulty levels, plus Hana-arashi survival mode. Works offline in the apps.
Private room
Share a link or an invite code — no account needed for your friend.
The 48 cards
Hanafuda date to 18th-century Japan; Koi-Koi is the most played game with the 48-card deck.
Ranks and seasons
Bronze
Silver
Gold
Platinum
Diamond
Master
Decks
Hanafuda Legends
The default deck, drawn for the game.
Louie Mantia
Wikipedia illustrations by Louie Mantia, used with permission.
Suryong
A super-deformed Hanafuda deck by Suryong.
Frequently asked questions
Press "Play now" for online matchmaking with players worldwide, or "Private room" to create a game and share the link or room code with a friend. Both work in your browser with no download.
Learn more →Yes. Hanafuda Legends is free to play in your browser or on Android — ranked seasons, Daily Challenge, vs computer, and private rooms. Every deck can be earned by playing — no purchases. No signup or subscription required. An iOS app is coming soon.
Learn more →Koi-Koi is a traditional Japanese card game played with Hanafuda (flower cards). Two players match cards by month, capture sets called yaku, and choose to bank points or risk calling "Koi-Koi" for higher scores.
How does Koi-Koi compare to Korea's Go-Stop?
Learn more →Play a card from your hand to match one on the table (same month), or add it to the table. Then draw a card and match or add it. When you form a yaku, you can stop to keep your points or call "Koi-Koi" to continue for more.
Learn more →Click "Private Room", create a room, and choose how many rounds. Share the room code or link with your friend. They join with the code — no account required.
Learn more →Yaku are scoring combinations of captured cards, such as "Five Brights", "Moon Viewing", or "Poetry Ribbons". Each yaku has a point value; the game explains them as you play.
Learn more →