When you said we could easily create our own terrain, would we need to download something to do it with or is it included in the editor itself? I know it's easy to blend terrains, but it doesn't really say how we make it, other than creating a ddt file. Is there like a mini version of paint or something?
It's not something included with Dawn of Fantasy, but all you'd need is an imaging software. Photoshop is obviously the preferable choice. But Paint.NET can read dds files and works well - and is free. Gimp, another freeware, can't handle dds files initially but there are plug-ins to fix that problem.