I think that first two are probably the same song with different intro . They sound nearly the same around 009 and 014 . <| sep |> The AI would indiscriminately trade techs between themselves , so often they would all have a new tech just a few turns after it was discovered . Hey its me your brother , Montezuma . If you give me the secret of Metal Casting you can have this Ivory and some gold ? And you ' re like LOL no way ! I only just researched thatBut then China comes and is like Heey Monty my bro , you can have Metal Casting from me ! I don ' t even want the Ivory lol ! There was an option to completely disable AI tech trading , though . <| sep |> Don ' t get SE through Steam though , it ' s not on sale . Gamebillet has it for $ 10 off .