Hellooo! Thank you very much for your feedback!
Well I will not add more content now in the game, it's been a long project and I decided to end it and work on new bigger ones.
As for the walls, are you building close to the giant cliffs? They spawn on their bottom. I'll try to find an elegant way to solve the spawning behind the walls issue in the future definitely as soon as I have time for this UwU