The Sims 4 is a social simulation game, similar to preceding titles in The Sims series. The player is encouraged to make choices and engage fully in an interactive environment. The focus of the game is on the simulated lives of virtual people called "Sims", and the player is responsible for directing their actions, attending to their "Needs", and helping them attain their desires. Although it is not mandatory, objective-based gameplay is available if the player desires, with each Sim having lifelong aspirations, and "wants and fears" personal goals that are generated based on current gameplay.