Great game really enjoyed it! I know the endgame needs some work but there's a bug you might not know about: once you have unlocked every perk to the max level you can keep tiering up your restaurant even if you dont meet the income requirements. Keep up the good work!
 "Restaurant Idle"){kind=icon}
 "Idle Evolution"){kind=icon}
 "Idle Mine"){kind=icon}
Yeah, it should have been fixed by now. Thanks for the report!