Sega NET Mahjong MJ is an active live-service title with both mobile and arcade versions, supporting collaborations, tournament streams, and offline events. An offline event is scheduled for September 13, 2026, in Nagoya.
The online mahjong game Sega NET Mahjong MJ continues to operate across mobile and arcade platforms with a steady cadence of events. In June 2026, a collaboration with the Lupin III pachislot machine L Shuyaku wa Zenigata 5 ran a nationwide tournament and a themed gacha for both versions. The game then held its 13th Anniversary Tournament live stream on July 16, featuring four M-League players and commentary from a pair of regular hosts, with a support campaign offering autographed tumblers.
Most recently, Sega announced an offline event for September 13, 2026, at Chunichi Hall in Nagoya. The free event will let 42 lottery-selected participants play against six professional mahjong players using the mobile version of the game. The event marks a rare physical gathering for the title, connecting the developer directly with its player base. Across these three stories, the game shows ongoing community engagement through varied formats-digital collaboration, competitive streaming, and in-person competition.
Synthesized by Yomimono from the cited Yomimono stories below, each itself sourced, then editorially reviewed. Every fact links the story it came from.
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Sega Corporation will host the 'Sega NET Mahjong MJ Official Offline Event in Nagoya' on September 13, 2026, at Chunichi Hall. The free event allows users to play against professional mahjong players using MJ Mobile. Attendance is limited to 42 participants selected by lottery from applications submitted by August 2. Guests include six professional players.
Sega will live stream the 13th Anniversary Tournament for SegaNET Mahjong MJ on July 16, 2026, featuring four M-League players: Genta Takeuchi, Yu Suzuki, Akina Mizuhara, and Takanori Nagai. Commentary comes from Maki Asami and Koshin Asakura. A support campaign offering autographed tumblers runs until the stream begins.
Sega has started a collaboration event between its online mahjong game Sega Net Mahjong MJ and the Lupin III pachislot machine L Shuyaku wa Zenigata 5. The event, running from June 1 to June 21, 2026, includes a nationwide tournament and a gacha with themed items for both the app and arcade versions.