August NPD data has shown that the US market grew 9 percent year-on-year last month, the first time monthly growth has dipped below 10 percent in 27 months.
The overall industry took $994.8 million in revenue in August.
Hardware accounted for $384.6 of that figure, a 3 percent year-on-year increase. Wii and DS were still completely dominant over the month, with 360 winning out in its battle with PS3.
"Despite smaller growth this month, the industry is up 32 percent year-to-date and remains on target to achieve annual revenues in the range of $22 to $24 billion," said NPD analyst, Anita Frazier.
Software sales rose 13 percent to $489.1 million in August, with Madden leading the way.
Overall, Wii was the greatest driver of industry revenue last month.
"Across hardware, software and accessories, products for the Wii platform contributed 28 percent of total industry dollar sales for the month of August," Frazier added.
Get all the raw NPD data here.