The character creation process has been expanded. Players choose a gender, age, look and outfit. The voice can be adjusted from clear to brash and a specific walking style can be chosen to reflect the personality. Next to a selection of various facial and body features, every element of the character can also be tweaked by holding and dragging with a large choice of colours and accessories. Players also choose a lifetime aspiration from a number of fields such as athleticism, creativity, family, knowledge, love ... with deeper choices for each. Next, three traits are selected such as active, cheerful, gloomy, romantic or self-assured, and specific characteristics such as hobbies, lifestyle and social intelligence. The game puts a larger emphasis on personalities and social interactions. Sims are now able to multitask, rather than completing actions one by one, and these are also affected by moodlets and emotions.
The bottom left of the interface holds an action queue where various activities the Sim wants to do are listed. At the bottom are time controls to manage how time passes. There is free camera rotation and various zoom levels to follow the activity from any angle. Sims level up by practicing activities. The game's main currency Simoleons is used to provide for the chosen lifestyle and to buy new items. The build mode has been made easier as items now often click together to form a coherent structure. Entire rooms can be picked up and placed elsewhere and the push-and-pull tool from the character creation mode can be used to alter the walls. The game has two neighbourhoods with ten public venues in total, such as bars, a museum, a park, a gym, and a library.
The Create-a-Style mode has been dropped in favour of predetermined colour sets. The game also no longer employs a seamless open world for different locations, but links together smaller environments with loading screens. All of the terrain has been flattened, without hills, and transportation is no longer present.