Neat concept, kind of like an AFK clicker game with a lot less clicking. The difficulty felt a little unfair in the beginning though.
Thanks for rating my game. And yes the difficulty is quite high here. The initial idea here was to have , as you said, an AFK clicker style of game, but in the end we decided to make a little twist to the game. The game is hard intentionally, it is encouraging the player to pause every time after killing an enemy and to think about their future upgrade. Thanks again for playing and rating my game. Have a great day!