I would guess the Xbox Game Development Kit. You could probably use Unreal Engine with this. https://learn.microsoft.com/en-us/gaming/gdk/ https://learn.micros

I would guess the Xbox Game Development Kit. You could probably use Unreal Engine with this. https://learn.microsoft.com/en-us/gaming/gdk/ https://learn.microsoft.com/en-us/gaming/gdk/ https://learn.microsoft.com/en-us/gaming/gdk/_content/gc/get-started-with-pc-dev/get-started-with-unreal-pc/gc-get-started-with-unreal-pc https://learn.microsoft.com/en-us/gaming/gdk/_content/gc/get... Microsoft lately seems to try to have .NET target every platform, but has a different framework for different combinations you want to target.