Riichi City - Japanese Mahjong
Riichi City - Japanese Mahjong Summary
Riichi City - Japanese Mahjong is a with in-app purchases Android app in the Strategy category, developed by Formirai Co., Ltd.. First released 3 years ago(Jan 2022), the app has accumulated 704.5K+ total installs and 16.1K ratings with a 4.34★ (good) average rating.
Recent activity: 3.4K installs this week (22.3K over 4 weeks) showing exceptional growth , and 100 new ratings this week (644 over 4 weeks) with healthy momentum. View trends →
Data tracking: SDKs and third-party integrations were last analyzed on Dec 1, 2025. The app's network data flows (API traffic to/from the app and its SDKs) were last crawled on Nov 8, 2025.
Store info: Last updated on Google Play on Nov 13, 2025 (version 227).
Riichi City - Japanese Mahjong was last scanned for SDKs 2025-12-01. Below is the overview of third party companies detected in the app. The full list of raw SDKs, app permissions and unknown SDKs is available here.
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Google
Facebook
Unity
Twitter X
JetBrains
Kotlin
Line
Square
Firebase4.34★
Ratings: 16.1K
Screenshots
App Description
[Riichi City × The Quintessential Quintuplets Specials 2 Collab Begins 12/12]
[Riichi City × The Quintessential Quintuplets Specials 2 Collab Event Begins December 12th!]
[Please note that all in-game currencies, items, and characters are considered virtual property. They hold no monetary value and cannot be exchanged for cash or any other tangible equivalent.]
RiichiCity is one of the anime-style free mahjong games! Many adorable, charming girls are eagerly awaiting your arrival! Come and embark on a delightful mahjong journey with these lovely mahjong girls together! Battle alongside these lovely ACG characters in-app and against real mahjong players to dominate Riichi City!
With various mahjong match modes available, both beginners and masters can savor the excitement of the real mahjong games! The user-friendly design ensures that even beginners can easily immerse themselves in the fun of playing mahjong online! Ignite your mahjong soul now! Conquer the challenges to be No.1!
[RiichiCity Features]
◆Free to Play and Fair Environment
Enjoy different modes and features without any cost! Indulge in the real Riichi mahjong games with your friends anywhere, anytime! Experience truly random tiles, without any additional adjustments! Chii! Pon! Kan! Pinfu! Chinitsu! Kokushi Musou! Explore a wide range of yaku combinations that you love in a fair and secure gaming environment!
◆Real-Life Design Elements
The real-life design elements in the modern Riichi City, such as mahjong houses, cafés, convenience stores and more, bring the realness of playing live Japanese mahjong games to the app! Experience the fierce competition in the fast-paced Japanese mahjong matches!
◆ACG Characters with Unique Playing Styles & Personalities
Meet and bond with the ACG characters in-app, each featuring their own playing styles and personalities, ranging from aggressive to defensive and skilled at reading discards... You name it! Grow with them and take your Japanese mahjong skills to the next level!
◆Fully Voiced by Famous Japanese CVs
Renowned Japanese voice actors and actresses bring the ACG characters in Riichi City to life with their exceptional voice acting talent! Lead them as their captain, start competing against others in the mahjong tournaments, and enjoy your game with these mahjong stars!
CVs: Ogura Yui, Namikawa Daisuke, Ishikawa Yui, Arai Satomi, Suguta Hina, Morishima Shuuta, Hasegawa Reina...
◆Beginner-Friendly Functions
Riichi City has a lot to offer, including tutorials, game log, spectator mode, hints for the winning tiles, tips for drawing and discarding tiles, auto hints, point calculation, and much more! All of these features are designed to help beginners ease into the Riichi mahjong world!