I know Avatar the last airbender has its own in universe game of Pai Sho but I always thought that a 4 player go game with the map of the world would be great. Blue stones for water, red stones for fire, green stones for earth and white stones for air. Could be any size but I would have each player start at their respective capitals. (Northern water tribe, fire nation capital, Ba Sing Sei for earth and any of the four air temples for air.