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.