Grey Dog Software has announced that World of Mixed Martial Arts (WMMA), the company's first entry in the growing world of mixed martial arts fighting, will be available for digital download exclusively through Grey Dog Software on December 8th, 2007. WWMA will allow players to manage contests between fighters from a variety of backgrounds; the player takes control of a MMA company, and is in charge of just about everything to do with its running, including hiring fighters, match making, marketing, and so on.