The ultimate Japanese Riichi Mahjong game, brought to you by SEGA!
The unparalleled, visceral experience of mahjong made available on smartphone.
■Free play
Play full-feature Japanese Riichi Mahjong against real opponents without making in-app purchases.
■Now Available in English!
Fully localized, including in-game text and commentary.
■Play online with people around the world!
Have a game of Japanese Riichi Mahjong anywhere at any time with people around the world.
■User-friendly interface
Intuitive controls allow anyone to jump right into the excitement.
Help features tell you how many tiles are needed to Tenpai, what to discard to be ready, what tiles will complete the hand, and what tiles are safe against other players.
■Live commentary!
Real-time commentary simulates the excitement of a live mahjong telecast.
■What is Riichi Mahjong?
Mahjong is a popular tabletop game in Japan.
The game is played with 4 people and 136 tiles (34 different types of tiles).
Players compete to create winning combinations of 14 tiles to be the first to take points from other players.
This will be repeated multiple times and the player with the most points at the end of the match will win.
■SEGA NET MAHJONG MJ is for people who:
-Are interested in Japanese Riichi Mahjong.
-Want to practice playing Japanese Riichi Mahjong by them selves.
-Want to try Japanese Riichi Mahjong. (Auto-play function included)
-Love games made by SEGA!
-Are looking for a new SEGA game to play!
-Are looking for a new free mobile game.
-Enjoy playing competitively online.
-Enjoy table games.
-Have played mahjong before.
*Play never results in cash exchanges.
*MJ is recommended for adult players who are already fans of Japanese Riichi Mahjong or who wish to learn to play the game for the first time.
This application uses CRIWARE (TM) by CRI Middleware Co., Ltd.

Ratings and Reviews

4.4 out of 5
7 Ratings

7 Ratings

DNA128k ,

Great Game, Hoping for Updates!

This is a fantastic Riichi game, one of the best and one of Japan's most popular. I greatly admire SEGA for localizing this, and the English audio is fantastic.

All that said, the localized version available here is lacking many, many features that the Japanese version has. I'm not anticipating any licensed content making the trip overseas, but the gacha features for avatar customization, among other cosmetic niceties would be very welcome additions. As it stands, this is the second best Riichi game available in English, which is a shame because I greatly prefer the faster pace and arcade feel of SEGA NET MJ. American Riichi fans are very fortunate to have this localized at all — keep up the good work and you will keep us coming back. I would be happy to spend money on this app if it were a little more feature rich.

SmaMan ,

Great that it’s in English! But it’s not all here yet...

If you’re looking for a Riichi Mahjong app, this one’s excellent. It’s very fun to play, especially if you’re still fairly new to the game. (Not if you’ve never played before, however.)

That said, there are a LOT of things missing from this localization. We can only hope they bring over the great tutorial and training modes, private matches, 3-player games, full “South” games, customization, events... the list goes on.

Still, what’s here is great fun! It’s just rather barebones at the moment.

MegaMeow ,

Almost there

Sega Net Mahjong MJ is a popular Riichi mahjong app from Japan that’s finally made its way overseas. The game play is fun and exciting, it has helpful hints for beginners, and the commentary is both funny and informative.

The biggest complaint I have is that the EN app is currently incomplete. We are missing leagues, events, tournaments, three player (“Sanma”), bingo cards, avatar customization and more. With any luck Sega will update the app and we’ll have the same features as Japan.

App Privacy

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  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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