According to the note, it reads that “effective May 31, 2014, GameSpy will cease providing all hosting services for all games still using GameSpy. Thanks for a great ride!” What this means is that there will hundreds of game titles that will be affected by this closure, but since GameSpy announced that it would stop accepting new games last year, hopefully these companies have prepared themselves for an eventual shutdown.
There will be more than a handful of games that will be losing multiplayer support and even CD key authentication. Some notable titles includes Civilization IV, Halo: Combat Evolved for Windows and OS X, Dungeon Defenders on the PlayStation 3, Gotham City Imposters, and Red Dead Redemption.
However it should be noted that most of these titles were published before 2010 so there is the possibility that not many gamers still play those games so perhaps not that many gamers will be affected, hopefully. As it stands Glu Mobile states that there are about 800 developers and publishers who still uses GameSpy’s services, but hopefully they will find an alternative soon.