IIRC ridgelines appear where continents intersect, and ranges appear with some different logic, but I'm not sure.

What's the difference between ridgelines and ranges?

I enjoy the ruggedness of the maps, however I've had issues with city placement. For example, played with oceans and all 8 civs started on a tiny strip of land with many other unexplored continents. I've also had the opposite issue - with less or no water, civs are spaced ridiculously far apart.

It should work with More Luxuries, since it uses the default luxury generation functions, but I haven't tried it.

Does it work with More Luxuries?

This map is awesome! I have been playing it all day and I can't stop!

(addendum: all the screenshots are made with Thin Ridgelines settings)

Carthage is pretty good, especially if you create a world with little water like the vanilla Highlands would have. Incas too, as well as any other civ that benefits from mountains. Maps with more water (such as those in the first two screenshots) or little mountains (eg. using Scattered and Thin settings for mountain generation) are more balanced.

Personally I prefer the Large Seas setting (middle picture) with Thin Ranges or something similar for mountains. Ridgelines can also be fun since it tends to divide the maps into smaller subsections separated by mountain ranges which have small 1- or 2-tile passes between them that you can use as defensive chokepoints.

No, Carthage not OP.

carthage OP :p