World of Goo / PC, Mac, Linux – name your price

Developer 2D Boy is celebrating the first birthday of their terribly charming World of Goo (90 at Metacritic) by letting you name your own price for it.

Wikipedia describes it like so:

The game is built around the idea of creating large structures using balls of goo. … The game is divided into five chapters, each containing several levels. Each level has its own graphic and musical theme, giving it unique atmosphere … There is also a bonus meta-game called World of Goo Corporation, where the objective is to build the highest tower using goo balls which the player collected through the course of the game. Players from all over the world can compete, as the height of the tower and number of goo balls used are being constantly uploaded to the 2D Boy server.

The main objective of the game is to get a requisite number of goo balls to a pipe representing the exit. In order to do so, the player must use the goo balls to construct bridges, towers, and other structures to overcome gravity and various terrain difficulties such as chasms, hills, spikes, or cliffs. There are several types of goo balls in the game, each of which has unique properties.

You can see the gameplay here:

In their 9.0 review, GameSpot said “Innovative, addictive, and delightfully weird, World of Goo is a superb puzzle game.”

2D Boy recommends giving “The Gift of Goo!” — Buy the game as normal, and, when they send you the confirmation email, you can customize a download page with a recipient’s name.

The sale ends October 19th.