First find the codes on a cheat siteThen go on options-cheats, then turn the cheat on
i know one only though. press ctrl alt and c altogether. a bar will show up at the top. type in rosebud and then press enter. and u get more money! :)
type in 1 Nine times when in diplomacy and what you want. you must offer something in return or it will not work. it does not work with luxeries or resources.
no there isn't at least not to my calculation or any of the peoples that i know and trust me i know a lot of people over 1 million
there are no cheat codes to do that. just finish the story of every player.