First-day sales of "Halo 3" reached $170million in the U.S., setting a record for highest gross of a video game within 24 hours of its release. The performance beat the previous record setter—"Halo 2"—which earned $125million within 24 hours of its launch. The game was preordered by more than one million people in North America. Worldwide more than US$300million worth were sold in the first week, helping to more than double the sales of the Xbox 360 when compared with the weekly average before the "Halo 3" launch.