Metroidvania map

I was looking for some examples or tutorials on how to make classic metroidvania mini map (rooms represented as blocks etc). NOT actual level but just the map, I found one tutorial on YT in spanish I believe. Does anyone know how I can create such a thing or where I can find information?

Hi Twoflower,
Silver-Streak provided an example project you can download and learn from.

hope it helps!

Thanks but as far as I understand its just minimap in right corner. Is it possible to zoom in and check entire discovered space?