Board Thread:General Discussion/@comment-24325678-20150507042716/@comment-26380049-20150508134520

Not to go off topic but... I know another good way to generate randomised maps but you need the program Paint.NET.

Okay so first off, with the default black and white colors, go to Effects > Render > Clouds. You can mess with the render settings a little bit, but they really aren't that important. Once you've got that, go to Adjustments > Posterize, and set everything to it's lowest level. You should have only 2 colors left. Then you can just use the recolor tool to make the black and white to blue or green.

Here is an example map with this technique: