Here are a few screenshots to give you an idea of what Teragon can do. I may add more to this later.
General Interface, showing the Basic tab. This tab can look different depending on the preset and the "Did you know?" tip will change each time you start Teragon.
8k Map using the World Generator 1 default preset (with a couple things disabled):
All large cities are at the top of the map, so not the best seed for this, but it still gives you an idea of what it might look like.
The same map seen in the 3D Previewer:
8k Map using the World Generator 2 default preset (with a couple things disabled):
The same map seen in the 3D Previewer:
8k Map using the World Generator 3 default preset:
The same map seen in the 3D Previewer:
8k Mega City Map:
The same map seen in the 3D Previewer: