In World of Goo your objective is to construct links of goo balls with available resources to deliver a set number of balls to a pipe while also avoiding hazards. It’s a single-player strategy puzzle game. If you want to find a way to compete against other people, the game offers a level where the main task is to just build up. You get more goo balls to build up with in this level by collecting additional balls through pipes that are not needed to pass the level.
World of Goo features five chapters and 37 levels. The chapters are: The Goo Filled Hills, Little Miss World of Goo, Cog in the Machine, Information Superhighway, and the Epilogue.