Two suggestions - I need a financial spreadsheet to show what the daily costs/income is in order to decide when to upgrade; I also need a "select all / select 10" button for choosing the army. You have one for buying, why not for the army screen?
Great game, everything about it was awesome. My only small niggle was when there was an order next to a plant, and I tried to click the plant, I kept clicking the order. Ho-hum, minor. This was a stellar game!! Do more please :)
Started off 5 star, then the race to 40,000 got a bit boring so 4 star, then too slow to unlock challenges so 3 star, then the level grinding to distance grind to get challenges became 2 star. GREAT potential, but the nuances are completely out of whack.