2D Boy's World of Goo (PC, Wii) is being pirated at the rate of "about 90%," according to co-creator Ron Carmel.

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.

Nintendo has issued details on today's update to the Wii Shop Channel, which adds two original WiiWare games and two retro re-releases to the Wii's online store.

WiiWare
• Art Style: CUBELLO (Nintendo) / 600 Wii Points ($6)
• World of Goo (2D Boy) / 1500 Wii Points ($15)
Virtual Console
• Secret of Mana (Square, Super NES) / 800 Wii Points ($8)
• Street Fighter II: Special Champion Edition (Capcom, Genesis) / 800 Wii Points ($8)

Today's release of Street Fighter II: Special Champion Edition marks the fourth version of Street Fighter II to hit Virtual Console. In addition to WiiWare, World of Goo will officially hit PC today, though developer 2D Boy actually released the PC version of the award-winning physics-based puzzer late last week.

All four titles will be available for download beginning today at noon EDT, 9 AM PDT. Read on for the official Nintendo-supplied details on each game... Read more

2D Boy's Independent Games Festival 2008 winner World of Goo will bring its physics-based puzzle solving hijinks to Wii as a downloadable WiiWare release on October 13, Nintendo has revealed.

The announcement came as part of a Nintendo press event today, though PR director Marc Franklin did not disclose a specific price point.

While at the podium, Franklin also announced that Frontier's downlodable wind-blowing Wii platformer game LostWinds has been among WiiWare's best-selling games since the service launched back in May.