I really enjoy this game! Okay. It's now March 11, 2022. There is a problem. I just changed my rating to 2 stars instead of the original 5 stars because I tried to purchase some units and the game stated there was an error and payment didn't go thru. Said to try again. The purchases never showed up in the game. I tried again and again to the tune of $81.00!!! Little did I know it was actually going through to my bank account!! I have asked for refund. Stay tuned for update.