Heroes of Might and Magic: Olden Era's strategy of building on the series' peak—the 1999 classic HoMM 3—has paid off. In a single day it broke even, shifting 250,000 copies. And in less than a month it managed to climb up to 1 million.
That's a heck of an achievement for the new game in a series that largely seemed to have been forgotten by owner Ubisoft—HoMM 5 came out in 2006, and since then it's been left alone.