Nice little game that takes almost hours to play. I understand its a game that you leave idle.
I only realised how to save once pressing esc after the first run.
I only noticed one bug. And that was with the hospital. It allowed me to upgrade more doctors but you only get 2?
That's the only bug I found so far. But yeah I left this game running in the background overnight twice and saved up all those resources to keep building up.