Fun fact: The original Civilization actually had it hardcoded into the AI that if the player was in the lead when the year 1900 was reached, all the AI would de

Fun fact: The original Civilization actually had it hardcoded into the AI that if the player was in the lead when the year 1900 was reached, all the AI would declare war on her. It's slightly less obvious in the later games, but there are definitely still diplomatic penalties for the human player such that the AI are less likely to make deals with them and more likely to declare war. Anyone interested should read Soren Johnson's blog (http://www.designer-notes.com/ http://www.designer-notes.com/). Soren was lead game designer and AI programmer on Civilization IV, and he actually designed the ruleset and the AI hand-in-hand, so that they would have a game the AI could actually play well.