TBH, I would not recommend starting a new project in Blitz3D unless you wanting to support ancient versions of Windows, in which case you can use Blitz3DxWin95 to produce Windows95 compatible apps. Blitz3D is 20-ish years old by now and the development environment and underlying technology are very outdated.
I would personally recommend Raylib your favoruite language if you enjoy programming everything by hand, or Godot if you're into GUIs.