Re: OS X El Capitan - Games won't open
Please try the following:
- Move your Sims 4 folder out onto your desktop and let the game generate a new one. You can find the folder in Documents > Electronic Arts > The Sims 4. If your game then works ok the problem was in your user data (most causes for this are incompatible or conflicting CC/Mods). Now you have a nice, new, clean user data folder you can try adding your old data back into the game gradually, testing after each addition. For example, copy your saves from your old The Sims 4 folder into the new one. If your game once again doesn't perform properly then you know that there is a problem somewhere in your saves, one or more may be corrupted. For more information on Saves read this.
- Try repairing your game. Open Origin, click on your games library, right click on The Sims 4 and select Repair Game.
- If you have Origin open but your game won't load, quit Origin then try launching the game again from the Sims 4 icon in your Applications folder.
- Log out of and quit Origin. Restart your Mac then open and log back in to Origin.
- Disable Origin in Game. Open Origin, navigate to the The Sims 4 in My Games, right click on the game and select Game Properties. Make sure Disable Origin in Game for this game is ticked. For more detailed instructions read this.