GooTool 

GooTool is a utility to extend your World of Goo experience, enabling you to install new levels and mods to provide further gameplay, and to view and share your World of Goo accomplishments.

Main Features:

-Profiles - View your profiles, view your tower image and stats, backup and restore your profile, move it between machines, and upload to your tower on this website.

-Addins - Install and uninstall mods and new levels within the game.

-Options - Configure certain aspects of the game that you can't easily do otherwise - for example changing resolution or removing the loading screen video.