The service was open to third-party developers, but they had to meet certain Technical Certification Requirements (TCRs), which included (but were not limited to): game ratings, total number of Gamerscore points, content, game profiles, and Live connectivity. Games for Windows – Live games also had to meet standard Games for Windows (games that do not have Live support) TCRs. The same developer support infrastructure is available as on Xbox 360. Assistance for developers is provided through Microsoft XNA Developer Connection.[2]
Localization
As of February 10, 2015[3][4] Games for Windows – Live is available in 42 countries/territories.[5]