Gala Networks Europe announce that the Babel expansion will go live today for Castle of Heroes, their subscription-free MMOG. Word is: "Chief among the additions to the game is the legendary Tower Of Babel itself: 40 floors filled with monstrous guardians, each more powerful than the last. Players can attempt the Tower once each day and can earn substantial amounts of experience through winning – or forfeit all their spoils in defeat." This update has more details on the changes. Castle of Heroes is a browser-based Flash game that can be played under both Windows and Mac.