NPD Group so izdali seznam dvajsetih najbolje prodajanih PC iger v ZDA za mesec avgust 2006:

1. World of Warcraft (Blizzard)
2. The Sims 2 (Electronic Arts)
3. The Sims 2 Family Fun Stuff (Electronic Arts)
4. Civilization IV: Warlords (2K Games)
5. The Sims 2 Open for Business (Electronic Arts)
6. Civilization IV (2K Games)
7. Paws and Claws Pet Vet (ValuSoft)
8. Guild Wars Factions (NCsoft)
9. Cars (THQ)
10. Age of Empires III (Microsoft)
11. Elder Scrolls IV: Oblivion (Bethesda Softworks/2K Games)
12. The Sims 2 Nightlife (Electronic Arts)
13. Half-Life 2: Episode One (Electronic Arts)
14. Warcraft III Battle Chest (Blizzard)
15. Zoo Tycoon 2 (Microsoft)
16. Rollercoaster Tycoon 3 (Atari)
18. SimCity 4 Deluxe (Electronic Arts)
19. The Sims Complete Collection (Electronic Arts)
20. Zoo Tycoon: Complete Collection (Microsoft)