Koi-Koi - こいこい

Contains ads
5+
Downloads
Content rating
Teen
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About this game

Play Koi-Koi - こいこい, a traditional Japanese hanafuda card game played with classic Hanafuda cards, featuring turn-based gameplay, yaku-based scoring, and strategic risk decisions through the Koi-Koi system.

Koi-Koi is a classic Japanese hanafuda card game that introduces players to how to play Koi-Koi through structured card matching and yaku formation and forming recognized combinations known as yaku. Each match follows a structured turn-based hanafuda card game flow based on traditional Koi-Koi rules where players draw, match, and collect cards from the table to build scoring combinations. The game focuses on observation, memory, and calculated decision making rather than chance or fast reactions.

Played with a 48-card Hanafuda deck, this is a month-based card game divided into twelve months, Koi-Koi emphasizes pattern recognition and strategic timing. PPlayers aim to form hanafuda yaku combinations such as Brights, Animals, Ribbons, and Plains while deciding whether to Stop and secure current points or declare Koi-Koi to continue the round and attempt to increase the final score. Continuing the round introduces risk, as the opponent may complete a yaku first

Koi-Koi - こいこい presents a clean and accessible digital adaptation of a Japanese hanafuda game with traditional card flow. The interface is designed to clearly display collected cards, current yaku progress, and scoring status, allowing players to focus on gameplay flow and decision making. Animations and visual effects are subtle and supportive, ensuring that the classic Hanafuda card artwork remains the center of attention

This Japanese card game experience supports both offline play against AI opponents and online play with other players. Offline mode allows players to learn hanafuda rules, understand yaku structures, and practice strategic choices at their own pace. Online mode offers real-time matches with turn-based card interaction and synchronized gameplay flow

Koi-Koi uses a straightforward scoring structure based on yaku count, multipliers, and table settings. All points and chips are virtual and used solely within the game environment. There is no real-money gambling, no cash rewards, and no monetary value associated with gameplay outcomes

HOW TO PLAY KOI-KOI
- The game is played by two players.
- Each turn consists of playing a card and drawing a card.
- Matching cards of the same month are collected through hanafuda card matching mechanics.
- Collected cards are grouped into yaku.
- When a yaku is completed, players may choose Stop or Koi-Koi.
- The round ends when a player stops or the deck is exhausted.

GAME FEATURES
- Authentic Koi-Koi rules based on traditional Hanafuda gameplay
- Classic Japanese card game structure with yaku-based scoring
- Offline mode with AI opponents
- Online mode with real-time turn-based matches
- Clean visual presentation inspired by traditional Hanafuda art

WHY PLAY KOI-KOI - こいこい
- Experience a traditional Japanese card game in digital form
- Enjoy strategic decision making through the Koi-Koi system
- Learn and recognize classic Hanafuda yaku combinations
- Suitable for both casual play and focused sessions

Koi-Koi - こいこい focuses on authenticity as a traditional hanafuda card game with structured rule and respectful adaptation of a classic Japanese card game. The game avoids unnecessary complexity while preserving the original structure, rhythm, and decision-making depth of Koi-Koi.

SAFE & COMPLIANT
- This game is for entertainment purposes only.
- No real money gambling or cash prizes.
- All chips and points are virtual and have no real-world value.

PLAY & ENJOY
Step into the world of Koi-Koi - こいこい and explore the elegance of traditional Hanafuda card gameplay. Collect cards, form yaku, decide when to Stop or Koi-Koi, and enjoy a classic Japanese card game experience designed for modern platforms.
Updated on
Jan 23, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
Device or other IDs
Data is encrypted in transit
Data can’t be deleted

What’s new

[v1.0.1] Koi-Koi - こいこい
- Fix minor bugs
- Remove ads at endgame