Are there other Sims games like the Urbz?

Well, it depends what you mean by "Mission".

In Sims 3, you create a character, and they give you "missions" to help your character have a fulfilling life. They are things like "Tell a Joke to _____" or "Get a job in the Criminal Career". You don't really have to do the missions, but if you choose to ignore them, your sim's happiness meter goes down.

There is also the "Sims Stories" series. That game makes you follow a set story line as a predetermined character. They force you into doing certain actions that help progress the story lines.

You can play any of the Sims console games and it will be pretty much like that. You can also try the Harvest Moon series or Animal Crossing.

try kudos and kudos 2 these re turn based real time strategy games really good.