What Is Happiness
Happiness in Civilization V is the measure of your civilization’s approval towards you; how happy they are with the way you’re running things. It’s measured three different ways:
- Very Unhappy
Happy civilizations are the goal you’ll want to go after. These are the ones that grow normally as well as enter golden ages faster. Unhappy civilizations hinder growth by 75%, negate production, and negate gold earnings, as well as combat strength. Very unhappy means your cities aren’t growing and you’re at risk to lose them through revolts among the people.
So, yeah, it’s important to keep your people happy.