I worked in the games industry for over 10 years. A platform other than Windows was not an option. Microsoft provide a solid platform with an excellent tool set

I worked in the games industry for over 10 years. A platform other than Windows was not an option. Microsoft provide a solid platform with an excellent tool set. Not only that but all of the main content authoring tools (3DStudio Max, Photoshop) exist in Windows only (I realise PS exists on other platforms, but MAX did not). Games studios operate on extremely tight budgets, often a hand to mouth existence on publisher deliverables. This is their only revenue stream. It simply makes no sense to move a team of 50 people to another OS when everything they need and know already exists in Windows. I've been out of the industry for 5 years now, I still keep in contact with my friends in the industry, and as far as I know things are still the same.