a bit of advice for those having trouble in middle-late games
1. play non european and build ellis island wonder , you will get some 20 extra cultures
2.kill as many enemy commanders,rogues etc they are barbarian like ,return the chiefs to your troop town ,make them commanders and insert into town for xp
3.use generals for extra buildings not xp
4. every new era get new units to control disease and crime , i use 2 new units/city per era for example surgeon and sheriffs and park rangers.
5.spread out ore furnaces to reduce fire risk , max 3 per city
6.build multiple units fast using alt+click on unit , i seen as many as 40 units built in one city/turn
7.get heroic 2 promotions
8. heroes are best used as Great noble for extra GP
9.if your units have less than 101 xp when built , your doing it wrong
1. play non european and build ellis island wonder , you will get some 20 extra cultures
2.kill as many enemy commanders,rogues etc they are barbarian like ,return the chiefs to your troop town ,make them commanders and insert into town for xp
3.use generals for extra buildings not xp
4. every new era get new units to control disease and crime , i use 2 new units/city per era for example surgeon and sheriffs and park rangers.
5.spread out ore furnaces to reduce fire risk , max 3 per city
6.build multiple units fast using alt+click on unit , i seen as many as 40 units built in one city/turn
7.get heroic 2 promotions
8. heroes are best used as Great noble for extra GP
9.if your units have less than 101 xp when built , your doing it wrong