World of Goo (PC)

Pros: Very addictive, looks simple, easy to master the basics, but like all good games, the strategy is what counts.

Cons: Time consuming!

Summary: Generally, I'm not a video game player. However, WOG is an exception. As stated in the CNET review, the game is deceptively simple, but can be very challenging. Often there is more than one way to solve the puzzle of a given level, and there's always the challenge of doing it with less balls, and a shorter amount of time. There is a great on-line community, and the ability to create your own custom levels to post and share, as well as download levels created by others.