interesting concept! I wish you had a bit more time in the beginning to read the instructions and get used to the controls. could become quite good with some polishing :)
Thanks for the feedback! I've just uploaded a small update (v0.1.1) that increases the tutorial time and adds a wave countdown. I'll keep updating Builder King on Itch.io with new enemies and mechanics for some more versions, maybe until something I can call "v1.0".