Software sales eclipsed hardware sales in both dollar amounts and year-over-year change. The 62% year-over-year increase in software sales brought in $1.31 billion for the month, led by 1.57 million units of Infinity Ward's shooter Call of Duty 4: Modern Warfare (PC, PS3, X360) for Xbox 360.
Nintendo's Mario Galaxy (Wii) and Ubisoft Montreal's Assassin's Creed (PC, PS3, X360) on Xbox 360, both released later in the month, brought in second and third place in sales with 1.12 million units and 980,000 units sold, respectively. Notably absent from the top-10 best-sellers, listed below, is Harmonix's Rock Band (PS2, PS3, X360), which sold a combined 382,000 units across both PS3 and Xbox 360.
- Call of Duty 4: Modern Warfare (X360, Infinity Ward, Activision) 1.57 million
- Super Mario Galaxy (Wii, Nintendo) 1.12 million
- Assassin's Creed (X360, Ubisoft Montreal, Ubisoft) 980,000
- Guitar Hero III: Legends Of Rock Bundle (PS2, Budcat, Activision) 967,000
- Wii Play with remote (Wii, Nintendo) 564,000
- Mass Effect (X360, BioWare, Microsoft) 473,000
- Call of Duty 4: Modern Warfare (PS3, Infinity Ward, Activision) 444,000
- Guitar Hero III: Legends Of Rock Bundle (Wii, Vicarious Visions, Activision) 426,000
- Halo 3 (X360, Bungie, Microsoft) 387,000
- Assassin's Creed (PS3, Ubisoft Montreal, Ubisoft) 377,000