If you can't think of PC exclusive games on your own I don't know what to tell you... WoW, counterstrike, LoL, starcraft, eve online, tera, etc etc, and basically any game devs want to make that requires more than 6 buttons on a console controller to play, or requires a mouse to properly aim a crosshair. Plus the many thousands of lesser known MMO's, FPS's, MOBAs, etc, etc, etc... And crappy console ports like diablo 3, minecraft, etc should be considered PC exclusives