Joseph Brower

World of Goo is an awesome game that is simple yet challanging.  It works on Linux/Mac/Windows and for now, you can get it for whatever you feel like paying?  I strongly suggest you through a few dollars their way and not only help developers that create cross platform games, but also have a great time playing it.  Another good thing is that no DRM is used at all.  They are actually trusting their customers, so show some support.  www.worldofgoo.com