Funny to come across you here! I've played lots of SimAirport since something like 2017 I think, somewhere around the initial version available on Steam. Thanks a lot for providing countless of fun hours managing an airport :)
I still firmly believe that making games -- especially under an "old-school" business model (ie no loot-boxes, no microTX, etc) -- has to rank extremely high on the "work gratification" scale.
I'm obviously super small -- but it's AWESOME to know >80k people have played SimAirport for >20 hours and ~20k have played >100hrs (!!) -- so damn rewarding!