: Check or uncheck the boxes next to each pack. It is recommended to only run a few packs at once for a smoother experience.

The built-in Pack Manager allows you to toggle specific DLC on or off to improve game performance or tailor your experience. : Open the Sims 3 Launcher through the EA app .

: Click the Expansions & Stuff tab on the left sidebar.

: Press the Play button to start the game with only your selected packs active. 2. Installing Custom Content (.Sims3Pack)

Official Store content and many third-party creations use the .Sims3Pack format, which must be managed through the Launcher.

: Once finished, these items will move to the Installed Content tab, where you can uninstall them if needed. 3. Essential Troubleshooting