Both Microsoft and Nvidia have reportedly left the PC Gaming Alliance. PCGA president Matt Ployhar contacted Big Download, confirming that two of the founding members of the organization had left, although he would not comment on their reasons.
Ployhar adds that he doesn't believe that their departure will affect the PCGA in any way as the group shifts focus from research and studies to a more proactive position in the gaming industry by assisting developers and publishers make better PC games.
Just yesterday, Ployhar noted that piracy rates with PC games were dropping, although identity theft was a rising concern as a result of games shifting towards a free-to-play model.
Source: Big Download