Slay the Spire node style map

[boreal tusk]

does anyone know either how to make or a video/forum tutorials/advice on how to make a like node generation type map? used in games such as haste, slay the spire, etc. I have a very VERY basic 3d roguelike set up but now I would like to implement/figure out how to make that sort of node map to start the game from and then also progress