Re: Is there a way to download a sims 3 expansion pack without origin?

@laubee  If you have everything on disc, and your base game disc was manufactured prior to September 2012, you can install entirely via disc with no need for Origin.  The newer base game discs do require Origin to be installed, and it's possible some very new (maybe from 2019) pack discs do too, although I don't know for sure.  (There have been a couple reports, nothing definitive.)  And of course if you buy a pack digitally, you'll need to use Origin to install it.

Here's how to install with discs (skip the uninstall instructions if you've never had Sims 3 on this computer):

• Uninstall the game and clean your computer's registry of all TS3-related entries, either manually or with a tool like Piriform's CCleaner.
• Uninstall Origin as well.
• Download the Super Patch from here:  https://forums.thesims.com/en_US/discussion/175477/official-ea-download-link-for-the-sims-3-cumulative-manual-update
• Take your computer completely offline, as in, turn off wifi and/or unplug the ethernet cable.
• Install the base game only.  If the EA Download Manager asks to control your install, say no.  The EADM will do everything it can to "upgrade" itself to Origin.
• When the base game is installed, run the Super Patch and test.
• Install your packs in order.  When you're done, run the Super Patch again.
• Test to make sure the game runs.
• Go online and open the launcher.  Accept any updates it offers; these are not Origin-related.  (Also, it can't download Origin onto your computer for you.)
• For the missing store content patches, please read this thread:  https://forums.thesims.com/en_US/discussion/comment/16341942/#Comment_16341942

This is the usual path to installing via disc, and it works for almost everyone.  If you run into trouble, just let me know, and I'll try to help.