A map of the mediterranean sea and the black sea. Scale is 3km/tile. For loading, use "legacy (large slopes)", or "legacy (small slopes)" (+ sea level = -3) if on a half-height pakset.
mediterranean.map-color.thumbnail.png
To make this map, I used QGIS and the data provided here (https://www.ncei.noaa.gov/products/etopo-global-relief-model). Also GIMP to remove artifacts and make some bits actually water for simutrans.
There are lots of cliffs in mountaineous areas, esp. along shorelines.
And a 3216x1464 version.