Hello how may I help you? i need some help with game rules Ok, I can help with that. how do you decide who is "it" first in a game of tag? Who's it is decided when the first person asks who is it . ok cool how do you know who wins in tag? Usually, he winner of tag is the one who has been tagged it the least. is there a time limit for the game? No, the game ends only when people are tired of playing. ok cool, thanks for the help ok, have a great day.