World of Goo

This is brilliant game. It's so much fun. It's quite like Lemmings, for those of you who enjoyed puzzle games when they were actually fun. I particularly enjoyed Chapter 4 which has a theme of "Information Superhighway". Blocked sockets, packet routing. Hooo!
The physics engine is unbelievable. Your goo towers bend and sway in the breeze, gravity sucks, and goo flys in gentle arcs. There is even one level where you have to orbit goo around a central mass.
The backing sound track is atmospheric and a delight, and there's a humour through the whole game that will keep you smiling. Rock on 2D Boy!
Here's a trailer !