Or "Cops and Robbers," "Spacemen and Aliens," "Prosecutor and Defendant" and many other variations: a game where children play out a battle between two opposing forces, generally considered as a struggle between good and evil. It is one of the ancestors of the modern Role Playing Game (and one of the easiest ways of explaining RPGs to the uninitiated). This type of game is a trope both in fiction about children, and in fiction about adults who sometimes interact with children. Examples of Cowboys and Indians include: