On October 9, 2026, Sunsoft reported that “Shanghai Puzzle,” the game site it operates, was inaccessible due to a system failure.
It is possible that the recent spate of ransomware attacks has spread to the gaming industry as well.
Sunsoft holds the licensing rights to the mahjong tile puzzle game “Shanghai,” and some of the services it operates bear the “Shanghai” name. The gaming site “Shanghai Puzzle” is one such service. According to Sunsoft’s announcement, a malfunction has occurred in the external infrastructure environment used by the service, rendering it inaccessible.
Recently, there has been a surge in ransomware attacks targeting companies around the world. There have been a series of incidents, including system failures at local governments and data breaches at companies, and it is possible that these issues have now spread to the gaming industry as well.
Sunsoft’s announcement refers to the issue only as a “malfunction,” so it is unclear whether an attack occurred, but further details are awaited.
A link to the monthly subscription service “Shanghai Puzzle” is posted on Sunsoft’s official “Shanghai” website, but as of this writing, the site remains inaccessible.
