Now updated with some bug fixes and an ISLAND generator - see below
This customizer generates vartiations of fortresses and castles, simple to complex, with simple friendly controls.
If you're new to the Customizer concept, start by hitting the "Open in Customizer" button on the right panel. After you play around with the settings and like what you see, click "Create Thing" to have it generated (takes a while) as an STL file you can download and print.
In this code I'm attempting to combine the best of the two previous generators:
Perimiter wall with towers
But instead of 30+ controls, you now have only 9.
This means less specific control, but the ability to explore a large variety quickly.
Play around with the island-random-seed for different formations and sizes, or set it to 0 for no island.
This brilliant addition is courtesy of Torleif whose own generators are mind blowing (seriously, its the real thing). Check it out if you know whats good for you.