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“SEGA NET Mahjong MJ” celebration 11th anniversary! The official off-event will be held on August 18th (Sunday)!
SEGA Co., Ltd. has announced that the network competitive mahjong game “MJ” will celebrate the 11th anniversary of the service of the app version “MJ” (hereinafter referred to as “MJ App”) on July 25, 2024 (Thursday). On Sunday, August 18, 2024, “SEGA NET Mahjong MJ” Official Off-Event 2024 ~Let’s play MJ against professionals in real life!~ will be held, where users can play against professional mahjong players directly on the MJ app! We have decided.
Starting today, July 1st (Monday), we will begin accepting
applications for participation in the off-event.
■“SEGA NET Mahjong MJ” Official Off-Event 2024 ~Let’s play MJ against professionals in real life!~ will be held on August 18th (Sunday)!
[Image:×506.jpg] Official off-event application form
To commemorate the 11th anniversary of the Sega NET mahjong “MJ” app, we will be holding an official off-event where users can play directly against professional mahjong players on the “MJ app”.
This time, the third off-event, will be held at Sega Osaki Head Office for the first time, and the number of participants will be 96 people, three times the size of the previous event.
Participants in this event will be invited by lottery from those who apply using the special form. Please apply by all means!
[Event overview]
◆Event name
“SEGA NET Mahjong MJ” Official Off-Event 2024 ~ Let’s play MJ against professionals in real life! ~
◆Event schedule
Sunday, August 18, 2023 13:00-18:30 (scheduled) *Doors open 12:00 ◆Venue
SEGA Co., Ltd. Osaki Head Office
(Sumitomo Fudosan Osaki Garden Tower, 1-1-1 Nishi-Shinagawa, Shinagawa-ku, Tokyo)
◆Number of people expected to be recruited
96 people
◆Participation fee
◆How to apply
Apply by filling out the necessary information on the event
application form by 23:59 on Wednesday, July 10th.
◆Winner announcement
Only the winners will be notified of the winning results by email around July 19th (Friday). Only those who reply to the winning notification email indicating their intention to participate will be able to participate.
◆Event performers
daigo dai professional
Aiko Hinata Pro
Maki Asami Pro
Momo Matsushima Pro
Naoya Kono Pro
Yukari Nozoe Pro
Kanako Maruyama Pro
Momoko Miura Pro
◆Event details
Part 1: Battle against Dongfeng using “MJ”
Of the 8 games in total, you can play against professional mahjong players twice, and enjoy playing against MJ users on 6 occasions. Part 2: Exhibition match between 4 professional mahjong players (spectating) Players: Daigo Daigo Professional / Aiko Hinata Professional / Maki Asami Professional / Kanoko Maruyama Professional
Live commentary: Momo Matsushima Pro
Commentary: Professional Naoya Kono
Part 3: User representative selection by 2 professional mahjong players and 2 users (spectating)
Players: Yukari Nozoe / Momoko Miura / 2 user representatives Live commentary: Momo Matsushima Pro
Commentary: Professional Naoya Kono
*On the day of the event, you will need to bring a mobile device such as a smartphone on which you are playing “MJ”.
*Terminals will not be available at the venue on the day of the event. *Transportation/accommodation expenses to the site will be at your own expense. *For Part 1, you can sit at the table with the professional guest twice. There will be 6 games where there are no professionals at the same table. Enjoy interacting with other MJ users
*When applying, please fill in the number of professionals you would like to sit at the same table with, up to your 4th choice. Please note that we may not be able to accommodate your request if there are too many professionals available.
*Photos and videos taken at this event may be published on websites and magazines operated by the organizer, or through various news media. Please apply only if you understand this in advance.
*Event contents are subject to change.
*For details, please check the official off-event application form. The “SEGA NET Mahjong MJ” official X account ( posts information about 11th anniversary events and campaigns using the hashtag #MJ11th anniversary.
“SEGA NET Mahjong MJ” Official X Account: -What is Sega NET Mahjong “MJ”?-
The movement of tiles and hands is realistically reproduced, providing an overwhelming sense of realism that is unrivaled.
The pinnacle of arcade mahjong, popular for its exciting gameplay, can now be played on your smartphone or PC.

Name: SEGA NET Mahjong MJ
Compatible OS: iOS/Android/Windows PC
App Store URL:
Google Play URL: Distribution start date: iOS: July 25, 2013, Android: February 27, 2014, PC: November 19, 2013
Price: Basic free (item charges apply)
Genre: Table game
Manufacturer: SEGA
Copyright notice: (C)SEGA
Official site:
“MJ Series” portal site
“MJ App” official website
“MJ App” Official X
“MJAC” official website
■Company names and product names listed are registered trademarks or trademarks of each company.
More details about this release: