Mahjong Duels Koo

Mahjong Duels Koo

Mahjong game for 2 players

19 ratings
4 reviews
Free
In-App PurchasesWith Ads

Details

  • Released
  • Updated
  • November 17, 2023
  • January 30, 2026
Mahjong Duels Koo screenshot #1 for iPhone
Mahjong Duels Koo screenshot #2 for iPhone
Mahjong Duels Koo screenshot #3 for iPhone
Mahjong Duels Koo screenshot #4 for iPhone
Mahjong Duels Koo screenshot #5 for iPhone
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About

Experience a unique 2-player Mahjong game with original rules and strategic "Shikigami" skills. Enjoy fast-paced matches, easy high-scoring hands, and online battles with players worldwide. Compete for the top monthly ranking with gorgeous in-game production.

Original rule set for unique Mahjong strategy
Fast-paced games with short-term settlement
Easy to achieve high-scoring hands
Strategic "Shikigami" skill element
Online multiplayer battles
Monthly ranking system
Gorgeous game production
Show original description

What's New in Mahjong Duels Koo

1.0.9

January 30, 2026

- fix a minor bug

3

In-App Purchases

$5.99

Coin2

These coins are used in the shop.

User reviews

単純に面白くない。

じゃんけんの方が楽しいです。

欠陥だらけなアプリ

作った人はプログラミングも麻雀も知らない人なの?

・点数めちゃくちゃ
・ポンできる牌と出来ない牌が存在する
・リーチかけたのにかからない
不具合だらけでもう滅茶苦茶
麻雀以前にアプリとして成り立ってない

無駄なのでインストールしない方がいい

普通の麻雀との違いを感じる。四暗刻怖すぎ…

実際、簡単に満貫以上が出てくる。そのため、点が普通の麻雀よりインフレしている。
また、役満が普通の麻雀より出やすいし、持ち点の関係上、役満を食らったら死んだとさえ感じる。特に四暗刻が出やすい。四暗刻の恐ろしさが普通の麻雀より大きい。ただ、そう言うスリルこそ、このアプリが提供してくれるのではないか。
あと、式神のスキルによって、この麻雀は普通の麻雀とは別物になったように感じる。
また、リーチしたときやリーチされたときにBGMが変わるのはすごい。緊張感が生まれる。

やる価値なし

デバッグが全くされてないと感じるくらい不具合が多い
やるだけ時間の無駄
リリースするなら最低限の動作確認はするべき

Developer apps

FAQ

What makes Mahjong Duels Koo different from traditional Mahjong?

Mahjong Duels Koo features an original rule set that uses only Pin and Honor tiles, simplifying hand formation and speeding up gameplay. It also introduces a unique "Shikigami" skill to enhance strategic depth.

Can I play Mahjong Duels Koo offline?

The provided description focuses on online multiplayer battles and does not mention offline play capabilities. It is designed for competitive play against other users.

How does the "Shikigami" skill work in Mahjong Duels Koo?

The "Shikigami" skill is an original element that further enhances the strategic nature of the two-player game. It expands tactics and reading of the game through various phases and Shikigami formations.

Is Mahjong Duels Koo suitable for beginners?

Yes, the original rules make it easier to form winning hands and shorten game times, making it more accessible and less stressful for new players compared to traditional Mahjong.

Does Mahjong Duels Koo have ads?

Yes, Mahjong Duels Koo contains advertisements, as indicated by the 'hasAds' flag.

What devices does Mahjong Duels Koo support?

Mahjong Duels Koo is supported on iPhone, iPad, and iPod devices, as listed in the application data.

How often is Mahjong Duels Koo updated?

The app was last updated on January 30, 2026, with version 1.0.9. Further update frequency information is not available in the provided data.

What is the age rating for Mahjong Duels Koo?

Mahjong Duels Koo has an age rating of 4+, making it suitable for a wide range of players.