As Blizzard pulls Warcraft 1 and 2 from GOG.com, we have to ask, why aren't they on PC Game Pass yet? Why aren't dozens of Xbox's Activision-Blizzard games on Game Pass yet for that matter?
Warcraft 1 and 2 are being removed from the DRM-free GOG.com at the behest of Blizzard, for sadly obvious reasons.
In-game screenshot of the Horde faction building a base in Warcraft 2 Remastered

