Sales-tracking and marketing research group NPD has chimed in with the latest PC software sales in the United States, covering the week of August 3 to August 9, 2008.

As can be glimpsed below, the latest figures put Blizzard's ever-successful MMO World of Warcraft back at the top of the charts, with the Diablo Battle Chest continuing its chart presence while the Warcraft 3 Battle Chest pops up for the first time since early July.

All told, Blizzard-developed titles make up half of the week's best-selling software, with regulars from Maxis, Her Interactive and Infinity Ward representing the remainder.

1. World Of Warcraft: Battle Chest / Blizzard / $32 (Average)
2. The Sims 2 Double Deluxe / EA Maxis / $30 (Average)
3. World Of Warcraft / Blizzard / $20 (Average)
4. Nancy Drew: The Phantom Of Venice / Her Interactive / $20 (Average)
5. Spore Creature Creator / EA Maxis / $10 (Average)
6. Diablo Battle Chest / Blizzard / $33 (Average)
7. Warcraft III Battle Chest / Blizzard / $33 (Average)
8. World Of Warcraft: Burning Crusade Expansion Pack / Blizzard / $30 (Average)
9. The Sims 2 IKEA Home Stuff Expansion Pack / EA Maxis / $20 (Average)
10. Call Of Duty 4: Modern Warfare / Infinity Ward / $49 (Average)