July 2020 - last edited July 2020
July 2020
@2001diana Click on the Sims 3 base game icon in your game library, select More > Expansion Packs, and scroll down to Late Night. You should see a Download button if it's not installed, and a Play or Details button if it is. You can do the same for High-End Loft Stuff, under More > Stuff Packs.