Surprising figures put gorgeous adventure game at over a million copies sold worldwide, making it a welcome, though admittedly unexpected success.

During a month that saw the release of blockbuster titles 2 and 2, cutting edge adventure game Heavy Rain managed to squeak out a successful debut. Since the game's February release, more than a million copies have been sold.

GameSpot reports that of developer told German outlet Play3 that he's ecstatic about the game's early sales and expects another 500,000 copies to be sold by year-end.

The first of a series of downloadable episodes for Heavy Rain entitled "The Taxidermist" was released last week, with more promised later this year.

By Tracy Erickson