ADDON: You need the main game -The Sims 3- to install and play the Addon.

Widen your Sim’s horizons with a bunch of killer new career opportunities. With The Sims 3 Ambitions, decide whether your Sim will be the brave town hero or cause loads of mischief among their neighbours. Make your Sim save the day as a brave firefighter, change the town as a leading architect, or live on the edge as a tattoo artist. Will your Sim find success as a billionaire high-tech inventor or eke out a living as a bumbling mad scientist? Will they uncover secrets as a private investigator by dusting for prints or roughing up a suspect for information? Their future is entirely in your hands!