A Marketing research group NPD have released a list of the top 20 best-selling PC titles over the month of October.

Check out the list below:

The top 20 PC games of October follow:

1. Fallout 3 by Bethesda Softworks
2. Spore by EA Maxis
3. Nancy Drew: The Haunting of Castle Malloy by Her Interactive
4. Far Cry 2 by Ubisoft Montreal
5. Warhammer Online: Age Of Reckoning by EA Mythic
6. World Of Warcraft: Battle Chest by Blizzard Entertainment
7. The Sims 2 Apartment Life Expansion Pack by EA Maxis
8. Fallout 3 Collectors Ed by Bethesda Softworks
9. The Sims 2 Double Deluxe by EA Maxis
10. Command & Conquer: Red Alert 3 by EA Los Angeles
11. World Of Warcraft by Blizzard Entertainment
12. Civilization IV: Colonization by Firaxis
13. World Of Warcraft: Burning Crusade by Blizzard Entertainment
14. Crysis: Warhead by Crytek
15. Brothers In Arms: Hell’s Highway by Gearbox Software
16. Command & Conquer: Red Alert 3 Premier Ed by EA Los Angeles
17. Dead Space by EA Redwood Shores
18. Spore Creature Creator by Spore Creature Creator
19. Civilization IV by Firaxis
20. The Sims 2 FreeTime Expansion Pack by EA Maxis

Via Shacknews