The statement came from Carmel in the form of a user comment on a RockPaperShotgun story about the game's pending European release. 2D Boy cohort Kyle Gabler explained in another comment that the figure was established by looking at the number of unique Internet addresses connecting to the game's leaderboard server.
In the face of staggering piracy, Carmel is keeping his chin up. "We're getting good sales through WiiWare, Steam, and our website. Not going bankrupt just yet!" wrote the upstart developer to Joystiq.
Carmel wrote that a few players had illegally downloaded the game and then decided to make a purchase, but added that those buyers formed a "very small percentage."
2D Boy won the 2008 Independent Games Festival for World of Goo. The physics-based puzzler has quickly risen to popularity among indie game fans on Nintendo's WiiWare service as well as Valve's Steam.