Civilization (series)
There are five main games in the series, called Civilization I-VI (1-6). Some of them have expansion packs. There is also Civilization Revolution, which is like Civilization 1-6, but it works on the PlayStation 3, Xbox 360, Nintendo DS, and iPhone. The first version, Civilization, was released in 1991, and games have been released ever since. Civilization has existed since 1989