CodeWeavers, the company behind the WINE-based CrossOver Office, had introduced CrossOver Games as a gaming-oriented version of their pay-to-use edition of WINE.

When CrossOver Games was introduced it only officially supported a handful of games: EVE Online, Guild Wars, Half-Life, Steam, and World of Warcraft. However, a post on the CodeWeavers blog by Stefan mentions that this software will be seeing a few improvements this month now that CodeWeavers has shipped CrossOver Office 7.0.

Bit more here