UK games retail sold 1m fewer games during November than it did during the same period in 2009, according to GfK Chart-Track data.
Just shy of 9m games were sold at retail last month, while a little under 10m units were shifted during the same period in 2009.
But retailers were still able to generate more in revenues compared to last year.
Consumers spent 263m on games last month, which is an increase from the 261m spent the year before.
Of course the biggest sales driver of November was Call of Duty: Black Ops, which has put Activision at the top of the publishing pile for the first time this year.
Ubisoft was the second most successful company
last month, with continued strong sales of Assassin's Creed: Brotherhood and Just Dance 2.
The November Top Ten in full
1. Call of Duty: Black Ops (Activision)
2. Assassin's Creed: Brotherhood (Ubisoft)
3. FIFA 11 (EA)
4. Gran Turismo 5 (Sony)
5. Just Dance 2 (Ubisoft)
6. Football Manager 2011 (Sega)
7. Wii Party (Nintendo)
8. Need for Speed: Hot Pursuit (EA)
9. Professor Layton and the Lost Future (Nintendo)
10. Fallout: New Vegas (Bethesda)