オンライン麻雀 Maru-Jan

In-app purchases
4.4
2.25K reviews
Content rating
Teen
500K+
Downloads
Content rating
Teen
Simulated Gambling
Digital Purchases
Learn more
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About this game

■Free trial points are being presented
All new users who download the app and register will receive free trial points.

■Popular online mahjong with 1.7 million members
The Google Play app version of Maru-Jan, which attracts around 8,000 people every day from beginners to advanced users, is now in operation.
If you want to enjoy mahjong online, try Maru-Jan, which has minimal wait times.

To make the game more comfortable, the discarded tiles on smartphones and tablets have been made approximately 1.3 times larger, and the hand tiles on smartphones have been approximately 1.26 times larger.

■Challenge to “real” mahjong
(1) The texture of the mahjong tiles is just like the real thing.
Every detail is hand-finished, including transparency, light reflection, and light transmission.

(2) Reproduce the arrangement of tiles
You can enjoy the realistic feeling of hitting tiles, such as the discarded tiles shifting slightly.

(3) Adopts not only automatic tiles but also “manual tiles”
It is also possible to manually arrange the tiles in your hand. You can play by paying attention to the arrangement of the tiles.

(4) Research on fully automatic desks
A fully automatic table simulation is performed to reproduce the tile bias.
Due to the program that uses two sets of tiles on the server and mixes them, the distribution of tiles from the previous game and the one before the previous game will slightly affect the next game.

(5)Sound is recorded from the real thing
Enjoy "realistic sounds" including the sounds of tiles and dots hitting each other, and the sound of the table operating.

(6) Keep the production simple
There are no flashy performances, so you can concentrate on the game.

(7) Serious competition unique to paid games
You have to pay for the place, but if you come in first place it's free, so you can enjoy a tense game.

Please enjoy the "realism" that Maru-Jan is particular about.

■Mahjong AI “KIRIN”
AI analyzes the tiles, converts them into various numerical values, and suggests the optimal tiles to play.
For AI learning, we only use data from top-class mahjong players, the top 0.008% of Maru-Jan's 1.7 million members, with an average finishing order of 2.30 or less.

■Customize to your liking
We have prepared multiple table mats and voices for use in games.
Enjoy the game with your favorite customization.

■Web tileset function
You can look back at the game and do research without starting the app.

■Specify the sound so you can rest assured that your tiles will not be revealed
For the first time in a mahjong app, we have introduced a function to specify 1 cry, 2 sounds, and red-only sounds.
By making full use of the squeak designation, the button will be displayed only for the tiles you want to squeak, allowing you to play without revealing the tiles in your hand.

■“Set table” where you can play games with your friends
We have introduced a set table where you can invite people who want to play and play together.
When playing a game at a set table, the results for all participants are saved, so you can enjoy it like holding a mahjong tournament from the comfort of your home.

■Various events held every day
There are many events at Maru-Jan. From events held every day of the week to large-scale events held several times a year, we also hold events from time to time.
Maru-Jan's various events, which are free to participate in, are always popular with many customers, from beginners to experts. Event information will be announced within the app from time to time.
Updated on
Mar 19, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
This app may share these data types with third parties
Location, Personal info and 3 others
This app may collect these data types
Location, Personal info and 4 others
Data isn’t encrypted
You can request that data be deleted

Ratings and reviews

4.7
1.65K reviews
Adam
June 17, 2023
It's my cozy little mahjong theme park! No matter what skill level you are, this app will help you improve. So many more ways to enjoy playing riichi mahjong than just mindlessly grinding a last place avoidance ladder. There's always something going on! It would be perfect if there were an English version of the app and website, especially the parts of the site about improving your ability, but you can enjoy all of the features with a little bit of memorization and machine translation.
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ikemen1223
July 11, 2026
麻雀ゲーに見せかけた課金ゲーです。 無課金でも勝てばポイントが貰えるので、課金しなくても遊べますが、それではもちろん企業も儲からないので、無課金のユーザーには驚くくらい有効牌が入りません。 東風戦で、ずっとツモ切り、ひとメンツも完成せずなんてこともありましたw お前がヘタなんだろ?と感じるかもしれませんが、それでも驚くことに捨て牌を見たところで、ムダヅモなしでした。 また一打目の捨て牌からど真ん中切ってくるような初心者ユーザーが有段者だったりと、どんだけ課金したんだろうと思います。 (半荘で何度か初手ど真ん中やってきたので、初心者でしょうね…) このゲームのアルゴリズムは局が始まった瞬間に勝つプレイヤーが決まってる仕組みなのかな。 売りの賞金のある大会も決勝にしっかりプロの方が残るのを見ると運ゲーというより見えない力が働くゲームだなと感じました。 これだけAIなどが進んでも、なんで麻雀ゲームのアルゴリズムって進化しないんでしょうね? 手積みなり全自動卓で打ってるようなアナログ感ある、麻雀ゲームってあったら教えて欲しいです。
6 people found this review helpful
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SignalTalk Inc.
July 16, 2026
ご利用いただきありがとうございます。 牌操作がないことを証明する機能を公開しており、ご自身で確認が出来る仕組みでございますのでお試しください。 この度は貴重なご意見をいただき誠にありがとうございます。 その他ご不明な点は公式サイト内のフォームよりご連絡をお願いします。
yusuke takano
August 22, 2025
手積みまたは自動卓の感覚で楽しめます。仕組まれたプログラムのような作為を感じません。
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SignalTalk Inc.
August 28, 2025
ご利用いただきありがとうございます。 この度はご評価いただき誠にありがとうございます。

What’s new

・日本麻雀王座杯を公開しました。
・順位卓を導入し、ショートロイヤル卓を終了しました。
・セット卓を無料化しました。
・音量調節機能を追加しました。
Content rating
Teen
Simulated Gambling
Digital Purchases
Learn more

App support

About the developer
SIGNALTALK INC.
support@signaltalk.com
5-8-7, KAMATA KAMATAK1 BLDG. 8F. OTA-KU, 東京都 144-0052 Japan
+81 3-6428-6751

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