The difficulty level is a game setting in Civilization II that allows players to compete against AI opponents matched to their skills and desire for challenge. In order from lowest to highest, the difficulty levels are as follows:
- Chieftain ("Chieftan" on the Hall of Fame screen)
Since the computer players are controlled not by actual AI (like Siri or self-driving cars), but by simple sets of rules which don't result in very effective play, the game makes the AI leaders more challenging opponents by giving them advantages on higher difficulty levels. The bonuses conferred to both human and AI players on each difficulty level are listed in the table below.
|Endgame year||? AD||? AD||? AD||? AD||? AD||? AD|
|Next Citizen Unhappy||6||5||4||3||2||1|
|AI Production Box "Squeeze"||0%||0%||0%||0%||20%||40%|
|Barbarian Attack Strength||×0.25||×0.50||×0.75||×1||×1.25||×1.50|