Mahjong Soul is active with its Corporate Tournament 2026 final scheduled for August 30, and its Japanese domestic version recently launched on Steam with data transfer support for existing players.
Mahjong Soul, the free-to-play online mahjong game developed by Catfood Studio and published by Yostar, has reached Japanese PC players on Steam. The domestic version went live on July 20, 2026, ending a seven-year gap during which the global Steam version was inaccessible from Japan. Players who used the browser, iOS, Android, or Windows versions can transfer their play data by logging in with the same method, though DMM version accounts cannot be transferred. The Steam version matches the specifications of the Windows version, according to a 2024 comparison chart from the official overseas X account. The Japanese Steam store page appeared on May 21.
The game's competitive scene continues with the Mahjong Soul Corporate Tournament 2026. The final is set for Sunday, August 30, and will be live-streamed on the official Mahjong Soul YouTube channel from 2:00 PM to 7:00 PM. Eight companies compete: four advanced from a qualifying round involving 104 companies, and four were given special invitation seeds. The tournament has drawn fierce elite battles since 2020.
Mahjong Soul offers ranked matches, friend matches, and tournament modes. It has hosted collaborations with series such as Code Geass, Akagi, Fate/kaleid liner Prisma Illya, and Sword Art Online.
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Yostar will hold the final tournament of the Mahjong Soul Corporate Tournament 2026 on Sunday, August 30, and live-stream it on the official Mahjong Soul YouTube channel. Eight companies compete: four from a 104-company qualifying round and four special invitation seeds. The stream runs from 2:00 PM to 7:00 PM.
Yostar released the Japanese domestic version of Mahjong Soul on Steam on July 20, 2026. The free-to-play online mahjong game, developed by Catfood Studio, is now available on the platform after its global Steam version was previously inaccessible from Japan. Players who have been using the browser, iOS, Android, or Windows versions can transfer their play data to the Steam version by logging in with the same method. However, account data from the DMM version cannot be transferred. The Steam version is said to have the same specifications as the Windows version, according to a 2024 comparison chart from the official overseas X account. The Japanese Steam store page first appeared on May 21, and the release came seven years after the game's initial domestic launch in April 2019. The game features ranked matches, friend matches, and tournament modes, and has hosted collaborations with series such as Code Geass, Akagi, Fate/kaleid liner Prisma Illya, and Sword Art Online.