While the NPD Group doesn’t "officially" provide monthly videogame sales numbers any more, Gamasutra have managed to compile figures for certain September titles through other channels. Luckily, they’re four of the more interesting games that were released during the month:
#1. Halo: Reach (Xbox 360) – 3,300,000
#3. Dead Rising 2 (PS3, Xbox 360) – 370,000
#6. Kingdom Hearts: Birth by Sleep (PSP) – 225,000
#9. Metroid: Other M (Wii) – 173,000
No surprise as far as Halo: Reach is concerned. For reference, Halo 3 also sold 3.3 million units when it released back in September 2007. Dead Rising 2 did okay, too, but it’s hard to say just how well, without knowing what sort of expectations Capcom had for it.
Birth by Sleep is a runaway success, considering that it boasts the best debut of any PSP game in a year. The last PSP game to even chart in the NPD top-ten was Dissidia: Final Fantasy, which debuted at #7 with 130,000 units in August 2009, but even that doesn’t come close to Birth by Sleep’s numbers.
The real point of concern here is Metroid: Other M, which:
a. Sold rather miserably for a core game that was heavily advertised
b. Debuted lower than Metroid Prime 3: Corruption, which did 218,000 units in its first month back in August 2007.