Fresh on the heels of Fallout 3’s release, Bethesda Softworks is announcing the official editor for Fallout 3 – G.E.C.K. (Garden of Eden Creation Kit) – will be available for free download in December. G.E.C.K. will allow Games for Windows users to create and add their own content to the game. Additionally, Bethesda will offer its first downloadable content – Operation: Anchorage – exclusively for both Xbox 360 and Games for Windows players in January, …