The NPD group has announced the US sales for StarCraft II: Wings of Liberty for July. The game managed to sell a pant-changing 721,000 units at retail. The game was released on 27th July, so that number was reached in only five days. NPD’s sales don’t measure digital downloads, so the number could’ve been even higher.

Regardless, it is the fastest-selling strategy game of all time. It sold more than 1 million copies in 24 hours and 1.5 million copies in 48 hours worldwide. NPD has said that the game made US PC game sales go up by 103% for July. We didn’t place StarCraft II’s sales in our traditional NPD post as that only covers console games. Our Matt seemed to enjoy it in his review.