Royalty free policy question as an non-game developer!!!

Well it’s actually non-interactable so the 4th bullet point might just make this software exempt from fees. Best to ask Epic about it directly.

I think Unreal Studio is capable of game development, as it’s just Unreal Engine with a bit different defaults, so I don’t think using Unreal Studio automatically exempts you from royalty fees. I believe the same conditions apply to it, as to Unreal Engine in the EULA.