Interplay's Fallout MMO is under threat due to financial concerns that threaten to bankrupt the company.
In an annual report filed with the US Securities and Exchange Commision, Interplay said cash problems could have an adverse effect on the firm's "ability to continue as a going concern".
"As of December 31, 2010, our cash balance was approximately $3,000 and our working capital deficit totalled approximately $2,877,000," it said.
"If we do not receive sufficient financing or sufficient funds from our operations we may (i) liquidate assets, (ii) seek or be forced into bankruptcy and/or (iii) continue operations, but incur material harm to our business, operations or financial condition.
"These measures could have a material adverse effect on our ability to continue as a going concern."
In order to raise additional funds, Interplay said it could consolidate certain operations or assets, and delay, cancel or further scale back its operations.
Its Fallout MMO is the subject of an ongoing legal dispute with publisher Bethesda.