Edition note: Independent English rewriting for English-language readers; mechanics and development claims have been checked.

In Civilization V, founding another city and adding population consumes global happiness. When unhappiness exceeds happiness, growth, production, and military effectiveness suffer. Earlier games used corruption to make distant cities lose part of their output. Civilization VI localizes much of the question through Amenities and adds Loyalty. Across the series, war weariness grows even when the war is being won.

The mechanics differ. They occupy one structural family.

Resistance that grows with success

External difficulty comes from stronger rivals, poor terrain, or limited resources. Internal resistance grows from your own achievements. More cities increase demands. A larger population requires more amenities. A wider empire becomes harder to hold. A longer war makes citizens less willing to bear it.

These numbers are “yours” in the possessive language of empire, but they push back against you.

That counterpressure gives strategy its shape. Expansion now has an opportunity cost. A player must decide not only whether another city can be founded, but whether the empire can absorb what the city asks from the rest of the system.

The games do not give each citizen a voice. They create a parameter for the aggregate fact that citizens cannot be treated as output without remainder.

This is not necessarily a moral commitment by the designers. It is a mechanical requirement. Remove every internal cost and the decision space collapses into addition.

The language of wanting

Loyalty in Civilization VI: Rise and Fall is defined as a city’s devotion to its civilization and reflects how much its citizens want to remain part of it.

“Want” is unusual language in an interface dominated by yield, strength, cost, and progress. The number is still something the player will optimize, but its name asks the player to imagine a relation rather than a resource.

The name also has consequences. When Loyalty falls below 75, growth and yields receive a 25 percent penalty. Below 25, yield penalties deepen and population growth falls by 75 percent. At zero, the city revolts and becomes a Free City capable of defending itself.

A city can leave without an enemy army conquering it.

For a period, it belongs to no major civilization. On a map organized almost entirely through colored ownership, a territory appears whose defining feature is that it has withdrawn from the previous color without yet accepting another.

The independence may not last. But the game has created a mechanical location for refusal, and that refusal has teeth.

The next question is what players do once refusal becomes a visible number.

Centered on Civilization V (2010) and Civilization VI (2016), with earlier installments noted where relevant; Civilization VII is outside the scope of this series. Full spoilers for game systems.