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Android Apps > Strategy > RiichiCity × KAKEGURUI2 Collab
RiichiCity × KAKEGURUI2 Collab icon

RiichiCity × KAKEGURUI2 Collab

by Formirai Co., Ltd. · Strategy · Free
On Google Play since January 2022 · Data updated 2026-11-01

RiichiCity × KAKEGURUI2 Collab is made and published by Formirai Co., Ltd. AppBrain is an independent app data site and isn't affiliated with Formirai Co., Ltd. The app name, icon, screenshots and description belong to Formirai Co., Ltd. and are shown as published on Google Play.

AppBrain's verdict

Well rated
Rating on Google Play
4.46
18,962 ratings
Installs
850 thousand
Last updated
October 8, 2026
Ads
No ads
Size
1.97 GB

RiichiCity × KAKEGURUI2 Collab has 850 thousand installs. Users rate it well: 4.5 stars from 18,962 ratings. Its best ranking is #54 in Top Free, Strategy in Japan.

Official page on Google Play

User feedback

Ratings and reviews on Google Play

Comments on RiichiCity × KAKEGURUI2 Collab for Android

★★★★★ David van voskuilen · Aug 24, 2026
I love riichi mahjong, and this game is a bit more forgiving on the gacha than some other apps
★★★★★ Grant Archie · Sep 10, 2026
Top-notch mahjong implementation with great characters as a gacha side dish, but respects you if you just wish to play the game
★★★★★ Enrique Velez · Jun 25, 2026
Server quality is great, clean interface, very nice art, voice actors are all good. Definitely has the best learning mode of all Mahjong platforms I've used. Very generous with cosmetics too. Only thing some people may not enjoy is how sexualized the characters often are though I enjoy it not everyone is me, so I'm sure some find that unappealing. A nice idea might be a toggle for such more sexualized art so that people uncomfortable with it can still enjoy the platform.
★☆☆☆☆ QuantumSoda · Mar 18, 2026
Honestly I came for the Collab and I did learn mahjong, but this game doesn't let you earn any premium currency for free. You have to buy it first, and then if you want more you gamble for it, ie you bet it into a pot, and you only earn more if you win, but if you lose welp you get nothing and have to buy more currency with real money again. Honestly just terrible, especially for a Collab. Honestly I would not recommend it, unless you solely like very fast-paced mahjong.
★☆☆☆☆ sabreeyah mujahideen · Aug 9, 2026
No danganronpa, I should have buyed the real game, but I'm going to save these $16. Not recommend for people who think this games going to be danganronpa (edit:I'm check again if I see Junko or Celeste)
★☆☆☆☆ Beyond Birthday · Jun 30, 2026
Feels like rigged to make sure you losing or never really win the game. Opponents somehow able to get riichi within 4-6 turns is crazy while you always getting 5 Hanten or 6. If you somehow getting good tiles, the opponent WILL somehow get a sumo and ron you within 2 or 3 turns. Its repeated, I can even see. My Rank even dropped so hard that I can't even comprehend it anymore. Don't talk about gacha in this game. Also, the bots are very annoying (22 decoration, orange gal, no frame) All the time.

Google Play Rating history and histogram

15K
1.5K
930
0
1.7K

Store listing

By Formirai Co., Ltd., from Google Play

“[Riichi City × KAKEGURUI2 Collab Begins 10/22]”

RiichiCity × KAKEGURUI2 Collab Screenshot 1 of 8
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RiichiCity × KAKEGURUI2 Collab Screenshot 8 of 8
Screenshots by Formirai Co., Ltd., from the Google Play listing
Description by Formirai Co., Ltd. Written by the developer, not by AppBrain. Click to read.
[Riichi City × KAKEGURUI2 Collab Event Begins 10/22!]

[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!

Recent changes:
Version: 2.2.8
Update details:
• New Gacha: Blue Dreams
• 1 new character: Saionji Rukia
• UI optimizations
• Text adjustments
Official page on Google Play Also on the App Store

Safety and technology

Found in the app by AppBrain
Ads
No ads
Price
Free
Libraries
57
App size
1.97 GB
Needs Android
6.0+
Content rating
High

Technologies used by RiichiCity × KAKEGURUI2 Collab

31 permissions · 57 libraries
Subscribe to see full permission and library details

Releases

Updates seen on Google Play
Version
2.2.8.1
Launched
January 2022
  • Oct 8, 2026UpdateVersion 2.2.8.3
  • Jul 27, 2026UpdateVersion 2.2.8.1
  • Jul 6, 2026UpdateVersion 2.2.8
  • May 13, 2026UpdateVersion 2.2.8
  • Mar 30, 2026UpdateVersion 2.2.4.3
Show all changes Show fewer

Alternatives

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Also available on the App Store

RiichiCity × KAKEGURUI2 Collab icon RiichiCity × KAKEGURUI2 Collab
LANCELOT TECH LTD
4.6
Free
612 ratings

Installs

Tracked by AppBrain
Last 30 days
12 thousand
Per day
400
30-day average
Play install range
500+ thousand
Launched
January 2022

Installs over time

RiichiCity × KAKEGURUI2 Collab has been installed 850 thousand times. Over the past 30 days, it averaged 400 installs per day.

Rankings

Google Play top charts
Highest rank
#54
Chart
Top Free
Strategy
Country
Japan

Google Play Rankings for RiichiCity × KAKEGURUI2 Collab

Top rankings

Rank Country Category List
54 Japan Strategy Top Free
59 Japan Strategy Top Grossing
115 South Korea Strategy Top Free
63 South Korea Strategy Top Grossing
Show all market rankings

Ranking history in Japan

About the app and developer

About RiichiCity × KAKEGURUI2 Collab

RiichiCity × KAKEGURUI2 Collab is a strategy app developed by Formirai Co., Ltd.

Install Statistics

RiichiCity × KAKEGURUI2 Collab has been installed 850 thousand times. In the last 30 days, the app was installed 12 thousand times. It is ranked in the top 100 strategy apps.

User Ratings

RiichiCity × KAKEGURUI2 Collab is rated 4.46 out of 5 stars. The rating is based on 19 thousand ratings.

App Information

RiichiCity × KAKEGURUI2 Collab is freely available from Google Play. The app size is 1.97 GB. The latest version available is 2.2.8.1. The last update was on October 8, 2026.

Technical Requirements

RiichiCity × KAKEGURUI2 Collab requires Android 6.0+ or higher. The app has a content rating of High Maturity. The app has been available on Google Play since January 2022.

App Performance Report

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Developer information for Formirai Co., Ltd.

Formirai Co., Ltd.

developer@mahjong-jp.com

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Frequently asked questions about RiichiCity × KAKEGURUI2 Collab

Is RiichiCity × KAKEGURUI2 Collab free?

Yes. RiichiCity × KAKEGURUI2 Collab is free on Google Play.

Is RiichiCity × KAKEGURUI2 Collab still available?

Yes. RiichiCity × KAKEGURUI2 Collab is on Google Play, and the last update we saw was on October 8, 2026.

Does RiichiCity × KAKEGURUI2 Collab contain ads?

No. Google Play does not list RiichiCity × KAKEGURUI2 Collab as containing ads.

What Android version does RiichiCity × KAKEGURUI2 Collab require?

RiichiCity × KAKEGURUI2 Collab runs on Android 6.0 and higher.

How large is RiichiCity × KAKEGURUI2 Collab?

RiichiCity × KAKEGURUI2 Collab is 1.97 GB.

Is RiichiCity × KAKEGURUI2 Collab suitable for children?

Google Play gives RiichiCity × KAKEGURUI2 Collab a high maturity rating. It is meant for adults.

How many times has RiichiCity × KAKEGURUI2 Collab been installed?

Google Play lists 500,000+ installs for RiichiCity × KAKEGURUI2 Collab.

How do people rate RiichiCity × KAKEGURUI2 Collab?

RiichiCity × KAKEGURUI2 Collab scores 4.46 out of 5 stars, from 18,962 ratings on Google Play.

Who made RiichiCity × KAKEGURUI2 Collab?

RiichiCity × KAKEGURUI2 Collab was developed by Formirai Co., Ltd. It is listed in the strategy category on Google Play.

What are the best alternatives to RiichiCity × KAKEGURUI2 Collab?

People looking at RiichiCity × KAKEGURUI2 Collab also look at these strategy apps: Riichi Dojo: Japanese Mahjong, Mahjong School: Learn Riichi, Kemono Mahjong, Red Mahjong GC, Amatsuki Mahjong.

Share RiichiCity × KAKEGURUI2 Collab

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