Though the world it's set in take a little getting used to, this game is fascinating, totally engaging and challenging.

The World of Goo is all about the millions of Goo Balls who are curious to explore the world they live in, via the pipe systems.

Build structures out of the little Goo Balls to reach the next pipe system.

Build up, out, over, under and float above the world's surroundings.

Be sure to have enough Goo Balls to enter the pipes when you reach the other side.

Wake other Goo Balls along the way and discover other Goos with amazing properties.

Beautifully illustrated, the strange world of goo balls will keep you enthralled. An out-of-this-world physics puzzle, ideal for keeping a sharp (and open) mind!