Sony's gaming division posted an operating loss of $45 million (£28 million) for the most recent financial quarter, showing a 14.5% decrease in sales for the PS3, PS2, PSP and individual games, reports CVG.
PS3 and PS2 combined sales were at 2.8 million units for the last quarter, down from 3.2 million the year before, while the PSP and Vita sold a combined 1.4 million units, compared to the 1.8 million units the PSP shifted during the same quarter in 2011.
Sony once again failed to specify individual PlayStation Vita sales, having omitted the same information from its earlier annual financial report.
Video game sales were also down, falling by seven million across home consoles and one million across handhelds.
Sony's overall loss as a company for the quarter stands at £200 million. The firm has since revised its forecasts, lowering the number of PlayStation units it expects to sell.
Video game sales have been in decline all year, with Nintendo among the companies to post losses.
Sony will hope to transform its fortunes with the release of Wonderbook, LittleBigPlanet and PlayStation All-Stars: Battle Royale later this year.
Watch a trailer for PlayStation All-Stars: Battle Royale below: