Keep an eye out over the next week or two for my upcoming series of articles which will feature a step-by-step guide on making a really nice fantasy map in GIMP. Part one will tackle getting your ‘antique paper’ background in place and generating a realistic-looking fractal for your landmasses and oceans.
I’ll also throw in a couple of variations on the style, if you want a slightly different type of map. In the first part of the series I’ll also throw in all the links to resources that you’ll need to create your map.
In the meantime, why not download GIMP and have a play around with it? It’s a great (free) Photoshop alternative that I now prefer to Adobe’s offering.