Rules Pages
   
Citizens Allows you to modify the names and abilities of citizens and specialists.
Civilizations Allows you to modify any of the 16 civilizations in the game.
Civilization Advances Allows you to modify any of the technologies in the tech tree.
Combat Experience Allows you to modify the how many hit points each experience level confers.
Culture Allows you to modify the effects of culture.
Difficulty Levels Allows you to modify various settings that control how difficult the AI is at each difficulty level.
Diplomats and Spies Allows you to modify the missions that diplomats and spies can perform.
Eras Allows you to modify the names of game eras.
General Settings Various miscellaneous game settings.
Governments Allows you to modify the various governments in the game.
Improvements and Wonders Allows you to modify the effects and prerequisites of all city improvements and wonders.
Natural Resources Allows you to modify the bonuses and effects of natural resources
Terrain Allows you to modify the effects, bonuses, and allowable resources on terrain types.
Units Allows you to modify the abilities and prerequisites of game units.
Worker Jobs Allows you to modify the prerequisites and duration of worker jobs.
World Sizes Allows you to modify the parameters of the world sizes.