2DBoy is offering a “Name Your Price” anniversary sale on World of Goo for download, compatible for PC, Mac, and Linux. The minimum price is $0.01. Coupon expires October 19, 2009.

World of Goo is a physics based puzzle / construction game. The millions of Goo Balls who live in the beautiful World of Goo don’t know that they are in a game, or that they are extremely delicious.