please make pause on tab switch optional. difficult to multitask when it pauses on tab switch
fun game its like a learn to fly sequel. Although I have a few suggestions, allow looking at the upgrade tree at any time, and the other is the tic tac toe opponent does not ever make mistakes so its impossible to beat it please lower the difficulty
good diabloish game. needs a save feature, other than that my suggestion is new game plus by diabloish difficulties like normal, nightmare and hell