The free games that have been included with the various versions of Windows over the years occupy a unique position in the video game landscape. No one would include them on a list of the best or most influential games of all time, and it’s unlikely any of them have ever acted as a “system seller” to influence someone’s choice of OS. Yet over the past decade, games like Microsoft’s Solitaire, Minesweeper, and Mahjong may be the most widely played video games on any platform (though the Angry Birds games have probably come close to beating them). Read the full story at ARS Technica.