To the new players:
The biggest pitfall for most people so far seems to be production capacity. Each building/unit has a PC requirement to be built. You must have at least that much PC in the city you are building said building/unit in on the turn you build it. PC does not bank or transfer between cities. PC can be gained through mines, quarries, and some civics. It is typically an expensive investment, but having more PC than is required for a building/unit results in a 5% discount per surplus PC (max of 50%) (there is a PC discount calculator in your stats - scroll to the top-left).
Second most common pitfall is the cost of workforces. Most buildings need a workforce to produce food/gold/PC. The workforces get more expensive as you purchase more. Itsucks is a balancing mechanism, get used to it.
The biggest pitfall for most people so far seems to be production capacity. Each building/unit has a PC requirement to be built. You must have at least that much PC in the city you are building said building/unit in on the turn you build it. PC does not bank or transfer between cities. PC can be gained through mines, quarries, and some civics. It is typically an expensive investment, but having more PC than is required for a building/unit results in a 5% discount per surplus PC (max of 50%) (there is a PC discount calculator in your stats - scroll to the top-left).
Second most common pitfall is the cost of workforces. Most buildings need a workforce to produce food/gold/PC. The workforces get more expensive as you purchase more. It