Note: We have only played the free, downloadable version of this game, but we will be getting it for Christmas, either as a PC disk or downloaded onto our (new) Wii. All three of my kids, ages 8-12, and I were charmed by the little goo balls, who chirp when they get closer to the goal of the pipe opening as you build them into various shapes and structures. As the levels increase in difficulty, adding various obstacles and challenges, being able to change tactics becomes critical, encouraging creativity. If you don't do well on a level, you can simply try again, evidently as often as you like. You can really learn a lot about construction, foundations, cantilevering, weight, etc., without really noticing you're learning (my definition of a good game!). The artwork is a neat combination of cheerful and creepy, and the music is beautiful. Simple to understand, but challenging to master --another sign of a good game. We love the World of Goo!

World of Goo is an amazing game (the music is among the best) This game is a brilliant metaphor for humanity with surprisingly relevant messages about resource, industry, development, and progress. *sheeparcade*

The "Genetic Sorting Machine" where children are told that "some balls are prettier than others" is frightening. The "less fortunate" are piled in a ditch for the "prettier" fortunate to roll across. Ruanda? Germany? How many more places can we think of where this kind of mentality has disgraced humanity? This game is only ok for people who do not know how to read the unbelievably inappropriate messages.

Great game, learning about physics while you creatively build structures to gain points of goo you collect. My child who likes puzzles enjoys this and Max & the Magic Marker. I had a lot of fun playing it too. Would be fine for a 7 year old who likes puzzles, but gets easier and more interesting the older they are. Nothing offensive or questionable about this. And there's no tension over the amount of time to complete them.