Zynga already offers games that let users grow crops on their own farm, run a crime family, or start a café. On Wednesday the game developer announced the launch of CityVille, its latest social game where players can build and manage their dream metropolis.

"CityVille is where Monopoly meets Main Street," Sean Kelley, CityVille's general manager, said in a statement. "Instead of harvesting crops, you're harvesting your neighborhood, instead of clearing your friend's frontier you're working on a friend's franchise."

Within the game, the creator acts as the city's manager. Players can build infrastructure, map out roads, plan schools, and start businesses. They will also oversee commerce in their city. Users can import and export goods, bring in items from other cities across the globe, and trade with other players.

As a city expands, the user will have access to different characters. This growth can be accomplished through interaction with friends' cities.

Zynga said CityVille is its most social game yet. Available in five languages, it is the first worldwide launch for the company that created the popular game FarmVille. Zynga said CityVille will be available in beta in the coming weeks in English, French, Spanish, German, and Italian.

Zynga said it has more than 225 million users playing its games each month. Games can be played on Facebook, MySpace, iPhones, MSN Games, and MyYahoo. According to AppData's App Leaderboard, Farmville is currently the number one Facebook application with an average of about 54 million users each month. Zynga is currently the top developer on AppData.

In June, Zynga released FrontierVille, a game in which players create their own homestead. Zynga said the game now has an average of 28 million monthly users.