A week after The Sims 3 release, it was stated that the game sold more than 1.4 million copies worldwide – making it the fastest selling Sims game of all time.  Now that the NPD data for June was published, Gamasutra received word that the copies sold in the US during the month was estimated at 820,000.  Of course, I believe this is only for retail copies and not digital downloads, but that’s pretty impressive just coming from the US!   Here’s the NPD PC data for the month of June listing the top 20 games:

1. The Sims 3 (EA The Sims Studio, Electronic Arts)
2. The Sims 3 Collector’s Edition (EA The Sims Studio, Electronic Arts)
3. The Sims 2 Double Deluxe (EA The Sims Studio, Electronic Arts)
4. World of Warcraft: Wrath of the Lich King (Blizzard Entertainment)
5. World of Warcraft Battle Chest (Blizzard Entertainment)
6. Spore: Galactic Adventures (Maxis, Electronic Arts)
7. World of Warcraft (Blizzard Entertainment)
8. Spore (Maxis, Electronic Arts)
9. Empire: Total War (The Creative Assembly, Sega)
10. StarCraft Battle Chest (Blizzard Entertainment)
11. World of Warcraft: The Burning Crusade (Blizzard Entertainment)
12. Reel Deal Slots Adventure (Phantom EFX)
13. Civilization IV: Complete Edition (Firaxis Games, 2K Games)
14. WarCraft III Battle Chest (Blizzard Entertainment)
15. SimCity Box (Maxis, Electronic Arts)
16. Diablo Battle Chest (Blizzard Entertainment)
17. The Sims 2: Apartment Life (EA The Sims Studio, Electronic Arts)
18. Prototype (Radical Entertainment, Activision)
19. The Elder Scrolls IV: Oblivion GOTY Edition (Bethesda Game Studios, Bethesda Softworks/2K Games)
20. Ghostbusters: The Video Game (Terminal Reality, Atari)