Buy Bishoujo Battle Hanafuda Koi-Koi PC

Bishoujo girls from the "Rick G Earth" mobile military turn-based strategy game challenge you to Koi-Koi matches, Japan's renowned flower card game. A beginner-friendly tutorial teaches the rules, so newcomers quickly grasp how to play cards from their hand, match pairs, and score points through Yaku combinations. Decide to stop after forming a Yaku or call "koi koi" to risk more rewards while your opponent aims to steal the lead. Cards display floral and animal motifs from Japanese folklore, paired with combat girls and anthropomorphic weapons in single-player battles across Japan. Collect unique character cards and achievements as you win. Multiplayer pits you against global players to test your casual Koi-Koi skills.


The Bishoujo girls from "Rick G Earth" mobile military turn-based strategy game from Japan are here! And they want to play Koi-Koi, the most famous Japanese flower card game with you.

◆Optimized for Hanafuda Beginners

Even if you have never played with hanafuda (flower cards from Japan), play through the easy-to-follow tutorial and learn the basic rules of Koi-Koi, the most popular hanafuda game in Japan.

Each turn, play a card from your hand and you collect any pairs you create with your card. You earn points by forming a Yaku (point scoring card combination). When you form a Yaku before the opponent, stop or call “koi koi” to continue the round, potentially increasing your winning at the risk of the opponent stealing the point from you by forming a Yaku before you.

◆Beautiful Japanese Design

Cards feature floral and animal designs from the Japanese folklore evoking a sense of “wabi sabi” – traditional Japanese aesthetic.

◆ Bishoujo Girls are here!

Featuring combat girls and anthropomorphic weapons from the "Rick G Earth" universe, battle against the bishoujo girls in single player mode: win battles all across Japan and collect unique character cards and achievements.

◆ Multiplayer support!

For an even greater challenge, hop onto the multiplayer mode to play against players from all over the world. Find out how you rank against the Koi-Koi masters.