chosen from among multiple competitors, and a hierarchy is devised by the heights the competitors achieve on the hill (what Howard Bloom called "the pecking order" in his book The Lucifer Principle), and where winning can only be achieved at the cost of displacing the previous winner. In sports In tennis, a variation of this concept manifests in the recreational game alternately titled King of the Court. In this game, one player is designated as the "king"/"queen" and occupies one side of the court. The other players line up single file on the other side. One challenger steps up and plays out a singles point (or multiple points) against the king. The point can be started with either a serve or a drop hit. If the challenger wins, they replace the king on the other side of the court and become the new king. In video gaming The concept of king of the hill in video gaming was introduced by Core War players, who would pit their warriors against each other in a fight for survival. King of the hill tournaments have existed for Core War since the 1980s. In video game versions of king of the hill, a player or team must keep control of a specific area (not necessarily a literal hill) for a predetermined amount of time. When that amount of time has elapsed, the round either ends or a new area is designated on the map. Players are primarily removed from the area by being killed. King of the hill has been featured as a game variant in many video games, especially first-person shooters like Halo: Combat Evolved and the more traditional Perfect Dark (and, more recently, Gears of War 2). One of the games that popularized such modes is Team Fortress 2. Overwatch has a mode called "Control", which uses king of the hill mechanics. King of the hill is also an option in top-down games such as those in the Army Men series. See also Tom Tiddler's Ground List of traditional children's games References Children's games Video game gameplay