With over 2.8 million copies sold on its first day of availability, Blizzard's second World of Warcraft expansion Wrath of the Lich King easily topped the charts. Older releases, such as BioShock and Assassin's Creed, retook the chart as well due to holiday sales.

Oh, and congratulations to surprise newcomer IGT Slots: Little Green Men.

1. World Of Warcraft: Wrath of the Lich King / Blizzard / $36 (Average)
2. World Of Warcraft: Wrath of the Lich King Collector's Ed. / Blizzard / $50 (Average)
3. Call Of Duty: World At War / Treyarch / $50 (Average)
4. Spore / EA Maxis / $48 (Average)
5. Fallout 3 / Bethesda / $49 (Average)
6. World Of Warcraft: Battle Chest / Blizzard / $34 (Average)
7. The Sims 2 Deluxe / EA Maxis / $19 (Average)
8. Left 4 Dead / Valve / $48 (Average)
9. The Sims 2 Apartment Life Exp. Pack / EA Maxis / $21(Average)
10. Command & Conquer: Red Alert 3 / EA LA / $49 (Average)
11. World Of Warcraft / Blizzard / $18 (Average)
12. The Sims 2 Mansion & Garden Stuff Exp. / EA Maxis / $19 (Average)
13. Nancy Drew: The Haunting of Castle Malloy / Her Interactive / $20 (Avearge)
14. EverQuest II: The Shadow Odyssey / Sony Online Ent. / $40 (Average)(Average)
15. Far Cry 2 / Ubisoft Montreal / $50 (Average)
16. World Of Warcraft: Burning Crusade Expansion Pack / Blizzard / $29 (Average)
17. BioShock / 2K Boston, Australia / $14 (Average)
18. Spore Creepty & Cute Parts Pack / EA Maxis / $19 (Average)
19. IGT Slots: Little Green Men / Masque / $20 (Average)
20. Assassin's Creed / Ubisoft Montreal / $11 (Average)