Dude. King of the Hill is a TV show, not a game! The show focuses on four of the main characters Hank, Dale, Boomhauer, and Bill. The show takes place in Arlen, Texas.
However, King of the Hill is a medieval game where you build castles (named King of the Castle in the United Kingdom). Also, there is a 2000 Fox Interactive game based on the TV show, and there are two games named Hootenanny and Texas Huntin’, but they were notorious for low-quality gameplay and impossible “levels”.