Ravenchase is a trademarked and registered term of art for a type of adventure game or alternative reality game. Ravenchase is also the name of a national event management company. Ravenchase games differ from a classic treasure hunt or scavenger hunt. Basic games open to the public are similar in nature to a puzzlehunt. Ravenchase games are conducted all over the world and last from two hours to as long as one month. The purpose of a Ravenchase game is to crack codes, ciphers and riddles while trying to beat other teams to the secret end location or buried treasure. Games range from paper based basic maps and scrolls to GPS games and use of cell phones along with a range of gadgets which help to reveal locations or crack codes. Ravenchase games are commonly used by corporations for team building events and offered to public consumers in various cities throughout the United States. Ravenchase holds monthly games similar to west coast versions of the game in Virginia, Washington DC, Paris, Maryland, North Carolina, Tennessee, Illinois, Georgia, New York, New Jersey, Pennsylvania, Delaware, California, Washington State, Oregon and Hawaii.