42 Entertainment is an American company based in Burbank which specializes in creating and producing alternate reality games (ARGs). The company was founded in 2003 as an independently owned, creative content and interactive agency under the name 4orty 2wo Entertainment. The company started with a nine-person management team and was originally based in Emeryville, California. It produces alternate reality games, including campaigns for Xbox and PS3 titles, the movie The Dark Knight, and the Nine Inch Nails Year Zero album.