Make some achievements or locked features for us to have a goal.
Force the game to continue while on background.
Hide the bought upgrades.
Make an upgrade to sell stuff automatically.
And make some possible action to increase production while not idling.
still bad. You should rework constantly loosing ships. Otherwise people get frustrated trying to achieve something and loosing it after with no chance to fight or to recover. 1 star.
Found a bug. Money you spend in the shop is added to money "earned" at the current area.
So if you spent like 200.000 and earned like 30.000 it will be -170.000
Thanks for the feedback! Keep it coming, we are working on an update with unlock able levels...and hats!!