It's always been possible to run most Windows games on Linux. You just have to pay a monthly subscription fee to TransGaming Technologies for Cedega. You could also, with a lot of work, run that hottest of Windows games, World of Warcraft (WoW), on Ubuntu with WINE. Now, however, CodeWeavers is working on making it possible for CrossOver Office users to easily install and run WoW on a multitude of Linux distributions.
In a recent note to CodeWeavers supporters, Jessica Nunn, the CodeWeavers support ombudsman, wrote, "Recent improvements in Wine have allowed CrossOver to run WoW (World of Warcraft). As a result, we at CodeWeavers have been 'testing' that particular application. Extensively. Perhaps too extensively."