What was the game which Atticus banned the kids from playing?

Atticus catches the kids playing the Boo Radley game.He tells them to, “Stop tormenting that man” with either notes or the silly game. Atticus understands the sanctity of privacy and that Boo deserves respect rather than children playing games. Atticus says that Boo, like all people, deserves his dignity, “What Mr. Radley does is his own business.” I don't think that Dill is especially a liar more than any other child. He has an active imagination and, like most children, says things to avoid punishment.