NPD has announced June's retail game sales data revealing another strong month for Rockstar's Red Dead Redemption. The sandbox Western racked up 582,900 units on the Xbox 360 and 380,300 on the PlayStation 3 for a total of 963,200 shipments down from 1.5 million in May, but still enough to make it the best-selling game of 2010, according to the outfit.

Meanwhile, Microsoft's revamped Xbox 360 successfully usurped the Wii's second place position (451,700 versus 422,500 units sold), but Nintendo's DS held the top spot, shipping 510,700 handhelds. Sony moved 304,800 PS3s and 121,000 PSPs. In addition to ousting Wii, Microsoft's 1,600 point card for Xbox Live was the most purchased accessory.

Overall, June proved to be another rough month for the game industry. Despite a 5% uptick in hardware and 6% increase in accessory shipments, overall sales slipped 6% on-year to $1.1 billion. This is expected to improve in the second half of the year, with the arrival of new motion controllers from Microsoft and Sony spurring consumer interest.