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 not controlled by advanced AI (i.e. cannot learn from and react to the player's strategies by changing their own accordingly), but instead behave based on a very long list of if-then statements, 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.
All of the information presented here comes from the articles cited below and the game's data files. The end game year in civ2 is always the same - 2020 AD. The amount turns depends on the map size and difficulty of the game. 
|Civilization II |
|Conflicts in Civilization • Fantastic Worlds • Test of Time†|
Attitude (Civil disorder, We Love the King Day) • City (Capital) • Combat • Difficulty level • Espionage • Food • Gold • High Council • Luxuries • Odeo year • Pollution • Production • Reputation • Science • Spaceship • Specialists • Tax Rate • Trade • Trade route
|†Standalone remake with different graphics, units, etc|