World of Goo, a physics based puzzle game developed by 2D Boy, will make its North American PC debut today, October 13, 2008 via Steam, Valve announced. In World of Goo, you may drag and drop living, squirming, talking, globs of goo to build structures, bridges, cannonballs, zeppelins, and giant tongues. The Steam PC edition of World of Goo will feature eight Achievements enabled by Steamworks, a complete suite of publishing and development tools available free of charge.