The game made up 68 per cent of all Xbox 360 titles sold, pushing the format to its highest ever software sales week.
And it wasn’t only games that benefitted – Xbox 360 hardware also enjoyed a major spike. Sales more than doubled from the previous week, leaving Xbox 360 shifting more units than Wii for the first time in 26 weeks.
Halo 3 is now the second fastest-selling game ever after Grand Theft Auto: San Andreas, and was purchased by one-in-three Xbox 360 owners in its first week. Predecessor Halo 2 was bought by one-in-six Xbox owners back in 2004.
The game lived up to Microsoft’s billing of ‘The Biggest Entertainment Launch of All Time’ in the US last Tuesday, taking $170 million on its first day on sale in the giant territory.