World of Goo

World of Goo is a puzzle game with a strong emphasis on physics, for WiiWare, Windows, Mac OS X, and Linux (x86 and x86-64) by 2D Boy, an independent game developer consisting of Kyle Gabler and Ron Carmel, both former Electronic Arts employees. It was nominated for the Seumas McNally grand prize, Design Innovation Award and Technical Excellence at the Independent Games Festival. It was released for the Wii's WiiWare service in North America on 13 October 2008. On 11 November 2008, 2D Boy announced that World of Goo would be released as WiiWare in Europe in lieu of a retail release.
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, similar in style to Tim Burton's film designs. 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. The player must exploit combinations of these goo balls in order to complete each level. Extra goos recovered in the pipe are pumped through to the World of Goo Corporation, a sandbox area where the objective is to compete with other players worldwide by building the tallest tower possible. Players can also try to achieve the "Obsessive Completion Distinction (word game parody of Obsessive compulsive disorder (OCD) Flag" for each level by completing the level under more stringent criteria, such as collecting a larger number of Goo balls, finishing under a set amount of time or using as few moves as possible.
Levels and chapters in the game are interspersed with cut scenes.