An unknown number of employees were affected by layoffs at Sony-exclusive independent developer Superbot on Friday. Superbot is the developer behind Sony's fighting game PlayStation All-Stars Battle Royale, which was released simultaneously for the PlayStation 3 and PlayStation Vita in late November. While Sony has not revealed sales figures for the game, it is thought to have not sold well, as it did not appear in the NPD Group's top 10 charts. It debuted at number 38 on the UK charts. The nature of the layoffs was not confirmed either, with Sony merely releasing a statement confirming that "SuperBot Entertainment did make a reduction in their workforce today." A source close to the situation tells Gamasutra that the affected headcount was over twenty. Sony did reiterate that support for the game will continue, starting with a DLC pack in February.