US retail sales of new video game hardware, software and accessories fell for the eighth straight month in July as the industry continued to look ahead towards the release of new equipment to cure its woes.
Overall sales fell 20 per cent to $US548.4 million ($A520.58 million), according to research firm NPD Group.
Sales of consoles and portable software - the video games themselves - fell 23 per cent from a year earlier to $US278 million.
Sales of hardware fell 32 per cent to $Us151 million. Accessories sales bucked the trend, rising 8 per cent to $US137 million.
Even with the anticipated launch of Nintendo Co.'s Wii U later in the year, NPD predicted full-year sales will be $US14.5 billion, down from $17 billion last year.
NPD analyst Anita Frazier said the July figures only represent about half of spending on video games.
NPD estimates used game purchases and rentals amounted to $US117 million in July, while spending on downloadable games, add-ons, subscriptions, and tiny transactions in social games came to $US439 million. It plans to give a full report on non-traditional categories in November.
The top-selling games for the month were NCAA Football 13 by Electronic Arts; Lego Batman 2 by Warner Bros. Interactive; and The Amazing Spider-Man by Activision Blizzard.