* Prince of Persia Warrior Within: 1.9 million copies sold in one month
* Tom Clancy's Ghost Recon 2: 1.4 million units sold in seven weeks
* The Settlers: Heritage of KingsTM (PC): 220,000 units sold in five weeks in Germany alone
Halo 2 has now sold more than 6.4 million copies worldwide.
The overall Halo franchise, which includes predecessor "Halo: Combat Evolved" for the PC and Xbox, has sold a collective 12.8 million copies in just three years.