Jagex has failed to produce its annual financial report nearly two months after the due date.
The company best known for RuneScape has opened a number of new studios this year, including one in the US.
But not all has been growth and prosperity for the developer as the failure of MMO 8Realms let to a number of layoffs.
Sources told Develop the game saw only ten percent of the users needed to turn a profit.
According to Companies House, the annual filing was due on September 30th.
It is unknown why exactly Jagex have missed this important deadline, but other companies such as Interplay have in the past delayed filing due to issues with third-party accounting firms.
Jagex has not responded to requests for comment as of press time.