: The Civics Tree uses Culture to unlock new forms of government and "Policy Cards," which provide modular bonuses to an empire's economy, military, or diplomacy.
The game introduces a "dual-tree" system, separating progress into and Civics .
: Even iconic World Wonders now occupy their own hexes, requiring specific terrain and blocking other potential improvements. Dual Trees: Science and Civics
: Cities now have a loyalty metric; if it falls too low, they may revolt and become independent "Free Cities" or even join a rival civilization.
: Driven by Science, this tree unlocks military units and industrial advancements.
: Based on a player's performance in an era, their civilization may enter a Golden Age with powerful bonuses or a Dark Age that tests their stability. Emerging from a Dark Age can lead to a "Heroic Age" with triple the rewards. Legacy and Critical Reception Sid Meier’s Civilization® VI on Steam
Through expansions like Rise and Fall , the game adds depth to how empires are maintained over millennia.
