Manage Worlds is a powerful game mode in The Sims 4 which allows the player to edit and customize the lots and families in the worlds of the active saved game file. It is the successor to the Edit Town mode from The Sims 3.
Even though Manage Worlds doesn't allow any options to customize the world apart from the lots, it does allow many great options for the player to manage existing households, especially the townie population. Manage Worlds can be entered from live mode by either clicking the icon on the top left corner, or by pressing F5 on the keyboard. Players are automatically greeted by Manage Worlds after entering an already created save game.
While in Manage Worlds, the top left corner includes to option to open the gallery, the notification wall, game options and finally, the manage households menu. The manage households menu allows the player to edit the existing household and townie population of the save game. There are options to change the Sim limit from 80, to 150, 200 (max recommended) and unlimited, which controls how many Sims are allowed to the saved game, before the game decides to start culling. Players can move households into the my households menu, which makes the assigned Sims safe from culling. The top right corner also has the option to enter the world selection screen.
When clicking on a family in Manage Worlds, various options appear to the bottom left corner of the screen. The three basic ones are play, visit and build. When clicking "More", three more options appear to move out the household, evict the household, or the manage household menu. The manage household menu allows the player to change the households name, description and appearance. There also options to delete, move to another lot, move into my households, and to transfer Sims between households.
The transfer option allows the player to move individual Sims of households between one another and there are two options; move to another existing household or create a brand new household. Creating a brand new one places the household as not in world, which can viewed from the manage households menu.
The another option when clicking a family is viewing the individual information of the households Sims, which are name, appearance, age, traits, aspiration and the current location. When clicking on an empty residential lot or a community lot, the option to view the lots name, description, price and lot traits appear.