City-building game

City-building games are a genre of strategy computer game where players act as the overall planner and leader of a city, looking down on it from above, and being responsible for its growth and management. Players choose building placement and city management features such as salaries and work priorities, and the city develops accordingly.

City-building games such as SimCity are considered a type of construction and management simulation.

History
The city-building game genre was established in 1989 with SimCity, which emphasized continuous building rather than a set victory condition. Players followed personal preferences in design and growth. Indicators of success were maintaining positive budget balance and citizen satisfaction. Subsequent SimCity titles soon followed when high sales of the game demonstrated its popularity.



The first sim game, Utopia (1982) developed for the Mattel Intellivision console system, covered many of these same elements, but was limited by the primitive screen resolutions of its era. Unlike the thousands of individual spaces possible a few years later in SimCity, each island in Utopia held only a dozen or so "buildable" spaces for schools, factories and other constructions. The player's score was based on the well-being of his or her people.

A second boost in genre popularity came in 1993 with the release of Caesar, a game which modeled cities in ancient Rome, replacing electricity and mass transit with aqueducts and roads. Subsequent titles in the City Building Series followed, all modeling cities in past civilizations.

The Dungeons & Dragons PC game Stronghold appeared in 1993, and was advertised as "SimCity meets D&D in 3D". Elves, humans and dwarves each built neighborhoods with unique architecture within the player's town. The title also had elements of real-time strategy games when enemies attacked the city, and the line between city-building and RTS games has often been blurred with this kind of hybrid title. True 3D graphics were not yet possible at that time, so the advertised 3D was actually a clever use of 2D graphics (an isometric projection) with mathematically-generated terrain and overlaid bitmaps and sprites.

IBM introduced its own proprietary city-building game titled IBM CityOne or IBM INNOV8: CityOne on Tuesday 4 May 2010 at its in-house software conference Impact 2010'', before a full release scheduled for the latter half of 2010.