In Nightlife, sims get to explore their wild side by engaging in hedonistic, nocturnal activities. No, they're not going out for "Hot Coffee," but they will be able to belt out tunes on karaoke machines, go all-in by playing poker, and shake their moneymakers on the dance floor.

New features include the pleasure aspiration, which lets characters do their best impressions of Caligula; dating gameplay, which puts sims on the scene by letting them chat up potential hookups; and a host of darker characters, including vampires and gypsies with black-magic apothecaries. Sims may also finally get out of their dreams and into their cars with automobiles that take them to their place of work or out on the town with class.

Nightlife is the follow-up to The Sims 2 University, the first expansion of the second generation of Sims games. To date, the Sims franchise has shipped more than 45 million units.