World of Goo is a physics based puzzle / construction game. The millions of Goo Balls who live in the beautiful World of Goo don't know that they are in a game, or that they are extremely delicious.
Game feels very original. Puzzles are fun, challenging, and clever. Cool art style. Nice music. The physics work well and are fun to mess with. Every world introduces new gameplay mechanics which keep things interesting throughout the game. No complaints. Definitely one of the best puzzles games I’ve played.