The Sims 3 features robust customization options through an expanded build mode and Create a Sim. The Sims 3 is the first game to feature an open-world concept: players are no longer limited to having a single lot loaded at a time, and Sims are able to move about and explore an entire town without triggering a loading screen.
The Sims 3 keeps many of the innovations introduced by its predecessor, but adds several new features. Like other The Sims games, The Sims 3 focuses on creating and controlling virtual worlds filled with simulated people called ' Sims.' The Sims 3 is the third main title in The Sims series of video games.