Look a freebie! Big version of the Isothingy world map for Traveller.. I needed one for something I’m doing, couldn’t find one big enough or high rez so here it is.. feel free to use though a name check would be nice. !
If you use in PS, add as a layer > set to multiply, add layer underneath… the lines will act as an overlay.
Couple of the test versions…
This is a rough ‘Mithril’ like version… strange grey area is ice