Thank you very much for playtesting and spending the time giving your feedback. I really appreciate it.
Indeed, I still have a lot of work to do, especially in regards to UX and tutorials. Also, I've recently seen this bug that the attack area is bugged. The current version I have has fixed it and added AI too, so hopefully, in the coming months, I can upload a more properly finished game. Weird that you said the waves didn't work for you. I'll check that again and also make sure I have more tutorials and better level design so the player can learn those aspects of the game.