World of Goo is a physics based puzzle game from game developers 2D Boy. The game revolves around a large number of slimes and their journey up-up-up! Throughout dozens of levels you have to help the slimes overcome all their obstacles by building towers, bridges and swings - out of goo.

The game is available for Windows, Linux and Mac, and currently there is a birthday super sale over at 2D Boy, where you get to set your own price. While you can most certainly buy the game for $0.01, do keep in mind that the developers are not including any kind of DRM, and have gone through the effort of creating a Linux version of their game. So do pick a price that you think is fair.

The sale will end on October 19th, so hurry up and get one of the best games available for Linux!

Click on the image below to go to the World of Goo homepage.