I have to say
the Aztecs, the Mayans (any mesoamerican prehispanic culture actually)were quite an amazing group of people, if they used them (with all their magic and legends) to build a game out of it, let me point it out.
you have "hunting" "mistics" "particularly fatal ball games" "Gods" "demons" "warriors" "sacred relics" "monsters" "war" "peace" "incredible monuments" etc etc etc.
damn... its a whole "lore" that has gone unexplored by videogames, i´m sick of seing all those "medieval fantasy" things, I WANT TO TURN INTO A DAMN JAGUAR AND KILL MY ENEMIES!, OR FIGHT QUETZALCOATL FOR THE GOOD OF TLALOC!.
i have seen them only in Age of Empires, and they didnt made them justice.