No Sims 3.app or folder (Mac)

@neuroticnelly  I've split your post into its own thread, since the other thread was quite old and in the PC tech section.

The Sims 3 folder and its contents don't turn up in a search, so you need to manually open the folder instead.  Open Documents\Electronic Arts\The Sims 3, and DCCache should be in there.

The Sims 3.app is installed into the user Applications folder by default.  Open a Finder window, click Macintosh HD (or whatever you've named your hard disk), then Users > your username > Applications.  Hit cmd-shift-. (period) to show hidden files and folders, and the Sims 3.app should be there.  If you don't see your hard disk in the left panel of the Finder window, click Finder in the upper left corner of your screen, then Preferences > Sidebar, and check the box next to hard disks.

Having said that, the issue in your screenshot is this:

https://answers.ea.com/t5/Technical-Issues-Mac/Installation-Verification-Failure-Sims-3-64-bit-release/m-p/9654190#M9100

I've moved your other post to that thread; this is a known issue that EA is working to address.  You can keep an eye on that thread for updates.

@slbankhead  Does your game launch at all?  There are other issues related to getting the 64-bit version installed, but if the launcher opens, the game has to be somewhere on your hard drive.

@slbankhead  Please open Terminal (in Applications > Utilities) and enter this command:

find / -type d -name "*The Sims 3*" 2>/dev/null

 The command can take a little while to finish running.  Please copy and paste the results into a post.  You can replace your username with [username], but please leave the rest of the file path intact.

@puzzlezaddict Here you go

@slbankhead  The scan wasn't finished, as you can see in your screenshots by the fact that the command is still listed at the top, and by the fact that the last entry has a little box cursor after it.  (When it's done, it'll offer you a new line where you can enter a command.)

For the sake of cleaning out a lot of those entries though, please run the Origin reset tool before trying again.  It should remove all those /Library/Application Support/Origin lines.

https://help.ea.com/en-us/help/origin/origin/how-to-reset-origin-on-mac/