Rockstar NYC is the headquarters of Rockstar Games and is part of Take-Two Interactive's offices. It houses the marketing, public relations and product development departments and oversees Rockstar's worldwide publishing operations. Various Rockstar studios contributed to different projects - Rockstar North developed downloadable content for GTA, Rockstar San Diego created Red Dead Redemption and the RAGE engine used in GTA4, and other studios such as Rockstar Vancouver and Rockstar New England assisted with ports of titles to other platforms.