The most challenging thing so far is maintaining the environment (yesterday, I messed it up a bit, and the mortality rate from heart attacks jumped from ~3-5% to 28.7%), supporting high religiosity along with science, and not setting taxes too high. Initially, I wanted to keep them no higher than 30%, but then they went above 40%, and I had to sacrifice something... Now, I'm fluctuating around 36%.
The most challenging thing so far is maintaining the environment (yesterday, I messed it up a bit, and the mortality rate from heart attacks jumped from ~3-5% to 28.7%), supporting high religiosity along with science, and not setting taxes too high. Initially, I wanted to keep them no higher than 30%, but then they went above 40%, and I had to sacrifice something... Now, I'm fluctuating around 36%.