SimCity 4 (SC4) is a city-builing simulation computer game developed by California-based software company Maxis, a subsidiary of Electronic Arts, in 2003. It is the fourth installment in the SimCity series, and the first to primarily use a 3D engine to render its graphics. It was also one of the top ten selling PC games of 2003. The game allows players to create a region of land by terraforming, and then to design and build a settlement which can grow into a city. Players can zone different areas of land as commercial, industrial, or residential development; as well as build and maintain public services, transport and utilities. For the success of a city players must manage its finances, environment, and quality of life for its residents. SimCity 4 has a single expansion pack known as Rush Hour which adds additional features to the game. SimCity 4: Deluxe Edition is the original game and Rush Hour combined as a single product.