There is certainly a viable Linux market for Valve games with their Orange Box being ranked number 9 on the top 25 voted applications for CodeWeavers -- it's just behind Microsoft Office 2007 and Outlook 2003 and ahead of the other software programs like Quicken 2008 and QuickBooks. Valve's Orange Box collection is made up of Half-Life 2, Half-Life 2: Episode One, Half-Life 2: Episode Two, Portal, and Team Fortress 2. Once the Source Engine is running on Linux, we would expect that the Orange Box will be available on Linux.
