Android doesn't support desktop OpenGL either (it supports OpenGL ES), and large parts of the Android install base don't support Vulkan either (anything before

Android doesn't support desktop OpenGL either (it supports OpenGL ES), and large parts of the Android install base don't support Vulkan either (anything before 7.x): https://developer.android.com/about/dashboards https://developer.android.com/about/dashboards I would bet that there are many more commercially-viable games that support Metal than those that support Vulkan. More than anything else, I think what I was responding to was the desktop-centric nature of the post I was replying to. This is not Apple's competitor to Steam or Stadia, it's a different way for Apple to monetize App Store games without IAP. Even with the current worldwide market share of each OSes, there are very few commercial Android-only games and a great deal more iOS-but-not-Android games. That's the market segment this is targeting, and what graphics APIs macOS supports are a footnote to that.