What types of bonuses/disadvantages does the AI receive?
The AI get a variety of bonuses and disadvantages depending on difficulty level. On Chieftain, the cost factor (basically a cost modifier; default is 1) is 2 for the AI – meaning everything takes twice as long to do, from researching a tech, to building a worker. However, on Emperor, the cost factor is .8, and the AI gets a reduced anarchy time! Here’s a table with the major information – for more, see this thread.Chieftain: AI Cost Factor: 2; 4 free citizens born content for human; attack bonus of 800% vs. barbarians; Warlord: AI Cost Factor: 1.2; 3 free citizens born content for human; attack bonus of 400% vs. barbarians; Regent: AI Cost Factor: 1; 2 free citizens born content for human; attack bonus of 200% vs. barbarians; Monarch: AI Cost Factor: .9; 2 free defensive and 1 offensive units for AI at start of game; 4 extra units supported (and 1 per city); max 4 turn anarchy; 2 free citizens content for human; attack bonus of 100% vs. barbs; Emperor: AI Cost Factor: .8; 4 free defens