Instead of building DEBs, use – a GUI app that manages Wine prefixes and creates desktop launchers for you.
Heavy 3D applications or games packed inside a .deb using Method 2 may perform poorly without a pre-configured graphical environment. For large-scale Windows gaming executables, consider using dedicated frontends like Lutris or Bottles instead of packaging them into a standalone .deb .
From the directory containing myapp-wine , run: