And yet, despite Microsoft ending mainstream support for XP and Vista in 2009 and 2012 , Blizzard has continued to support World of Warcraft, StarCraft 2, Diablo 3, Hearthstone, and even Heroes of the Storm under the decrepit operating systems. Personally, we don’t see any wrong with relying on an old Windows system but this is unless you are a fan of games from Blizzard Entertainment.