In Civ 4 the different leaders have personality. Ghandi is peaceful and will never backstab a weak player, Montezuma is batshit insane and lusts for blood, Isabella from Spain is a religious fanatic, Mansa Musa will quickly forget past wars and is happy to make peace to trade techs. A player can also befriend and ally a KI and win jointly.
There is a Google Tech Talk from the formet Civ lead programmer about this "Fun AI". In Civ 4 the Vanilla AI doesnt focus that much on winning. ManyAI Mods implement a more total War style and brutal min-max-gaming with huge armies to challenge experienced players. Also Civ 5 abandoned the Civ 4 style of diplomacy and replaced it with "hidden box" and a "Hard AI" which plays to win. It was at release date a huge disappointment of many veteran Civ players.
Ghandi always goes for the nukes though. I'm convinced this is an in joke added by the developers of the game to mess with us. Ghandi is one of the most agressive AIs if he views you as a threat.
There is a Google Tech Talk from the formet Civ lead programmer about this "Fun AI". In Civ 4 the Vanilla AI doesnt focus that much on winning. ManyAI Mods implement a more total War style and brutal min-max-gaming with huge armies to challenge experienced players. Also Civ 5 abandoned the Civ 4 style of diplomacy and replaced it with "hidden box" and a "Hard AI" which plays to win. It was at release date a huge disappointment of many veteran Civ players.