Sims 3 64 Not able to click anything

@desia2003  Did you ever try switching between fullscreen and windowed mode, specifically by editing options.ini?  You can right-click on the file and select Open With > TextEdit, and you should be able to edit it to set fullsecreen to 0 or 1.  Please try both and let me know whether either one helps.

Please also post the full specs of your Mac, everything under About This Mac except for the serial number.

Hi, I tried it in fullscreen since I was in windowed after changing the options and it still didn't work ☹️ My Mac specs are

macOS Big Sur

version 11.2.3

MacBook Pro (13-inch, 2020, Two Thunderbolt 3 ports)

Processor 1.4 GHz Quad-Core Intel Core i5

Memory 8 GB 2133 MHz LPDDR3

Graphics Intel Iris Plus Graphics 645 1536 MB

I never had a problem with this until upgrading to 64bit sadly

@puzzlezaddict sorry forgot to @ you!

@desia2003  Do you use any accessibility settings on your Mac?  Do you have any other apps (e.g. Discord) running in the background while you play?  Please try playing with nothing else running, aside from Origin of course.

If you use accessibility settings and don't want to change them, you can try playing in a new admin user account on your Mac.  Don't import settings (of any kind) from your existing account or change the default settings in any way; don't sign in with your Apple ID either.  You'll be able to login to Origin using your existing account, but your Sims 3 saves and other data won't be available.

Even if you're not sure your Mac has any relevant settings that might be interfering, the new user account would be the next step, so please try it regardless.  But if you do know of a setting that could be a problem, please let me know.

@desia2003  Okay, then you know that the issue is some setting you have in your normal user account that you don't have in the other.  If you like yoru settings the way they are, you can leave everything as-is and just switch user accounts when you want to play.  Otherwise, try changing one setting at a time in the new account until you notice a problem.

@desia2003  Is this in the new user account or the old one?

@desia2003  Okay, I'm not sure why that's happening, but please check the new user account and see whether you can play there.  That would be one of the suggestions anyway because it's a good way to narrow down the cause of the problem.

@desia2003  Okay, if you'd like to troubleshoot in your main account, try moving the entire Sims 3 user folder out of Documents > Electronic Arts and onto your desktop.  If you still can't open the game, take your computer offline: you can sign into Origin and put it in offline mode, then disable wifi and/or disconnect the ethernet cable before playing.

I'm happy to keep troubleshooting with your main user account for as long as you want.  But if at any point you get frustrated and just want to play, there's nothing wrong with using the second account instead.

@desia2003  Try disabling Origin in-game: hover over your username, select Application Settings, then the Origin in-game header, and disable the option at the top.

If that doesn't help, do you have iCloud set to automatically sync the contents of Documents?  If you're not sure, please check; if auto syncing is enabled, please disable it.  This guide is for a different issue, but the relevant settings are the same:

https://bluebellflora.com/2017/02/06/sims-3-and-sims-4-not-loading-save-games/

If that doesn't help either, do you have an antivirus or a cleaner app on your Mac?  Do you use some other service that syncs data, e.g. Dropbox?  Anything that's active on your main user account but not the new one might be relevant.

@desia2003  Okay, now with the settings changed, please move the Sims 3 folder out of Documents > Electronic Arts again and see whether the game opens.  If it does not, please let me know whether you get a new Sims 3 folder and what's inside it.  (A screenshot would be great.)