This is one screen of the overworld.
It is of the first town you come across as you journey back to your castle. Each one of those brown spots is a level. Each screen contains 11 levels. There are 10 screens in total.
In this next image, you will see the King's Castle. See all those little houses? It looks like your disloyal subjects setup camp in your castle after they kicked you out.
Time to get back in there and clear them out!
I will be posting a new feature of Zombie King every Tuesday until the game goes live on October 7th.
If you want to see the back story of how I designed these maps and where I got my inspiration, check out the following imgur gallery. I link to my favorite retro games.
https://imgur.com/gallery/DBw06dq