What a cool idea. I like the idea that you choose your positioning. Also, the concept of these little guys willing to swim across and single-handedly take on your castle is kind of terrifying. It was a struggle to run on my laptop since I don't have a proper graphics card, but luckily that didn't matter too much for the style of game it is. I was also wondering about rotating the walls, but it looks like you covered that in another comment. I wasn't able to progress very far mainly because I couldn't close off the walls properly, but maybe there's a better strategy