hey i got here from the youtube video about exploring non eudlicidian geometry . im slightly familiar with hyperrogue and can see that its sortof included here. i cant figure out how to get to anything like the type of map in the video though.
If you mean "Portals to non-Euclidean Geometries":
* "rogueviz demos" in the menu
* portal collection
* press Enter a few times until you get to "inter-geometric portals", or alternatively, press '9' and select it from the menu
* click "run this visualization" (note: may take some time to compile the shader)
Does this help?