Thanks a lot for playing and for the kind words! Glad you enjoyed the feeling of commanding the army 😄
Wave 17 is already really impressive — nice job! I agree that the difficulty ramps up quite a bit toward the end, and balancing is something I’m still working on.
An upgrade system is actually something I’m planning to add in the next update, so players can grow stronger over time and have more strategic options.
Really appreciate your feedback — it helps a lot!