Re: Sims 3 Stuck on Loading Screen [Mac]

@CarolineRamsey27  Try forcing the game to open in windowed mode.  You can do so by going into Documents > Electronic Arts > The Sims 3, opening Options.ini, searching for fullscreen , and setting it to 0 (zero).

If that doesn't help, please move the entire Sims 3 folder out of Documents > Electronic Arts and onto your desktop, and try again to play.

If that doesn't help either, please list the full specs of your Mac: everything under About This Mac including the OS and except for the serial number.