Most importantly, players can now populate the world of The Sims 4 with their custom Sims, rather than random townies. Players can increase their maximum household size to up to 140 Sims, set skill difficulty, and set how many in-game days a Sim will stay a certain age. Sims can now pay child support, adjust their bills, and have a risky WooHoo that might result in an unplanned pregnancy. There is an auto-saving option so players never lose too much of their game if there is a freeze or crash. The MC Command Center (and MC WooHoo) were developed by deaderpool and allow players more freedom within the game.
