If none of the above suggestions work please post with the details of your Mac, including the version of macOS you are running, which EPs/SPs work/don't work and what steps you have taken to resolve the issue. However, applying this workaround for the Unknown Error issue as well as editing the.

You can check whether your Mac is listed in the stickied thread here . Please bear in mind that the game is not compatible on most post-2013 Macs due to unsupported Intel/AMD graphics resulting in an Unknown Error message for just the base game.

If you are having issues with Packs not showing as installed in the Launcher please read the guide here on solving the issue. This is because the installer is expecting a lower patch level than 1.67.

If you encounter a message stating that the game is a more recent version than expected just ignore it and carry on installing. This is only applicable to the Mac version of the game. If you have downloaded the game through Origin you should not need to use Origin to play, launch the game from within your Applications folder. It has a 14 day trial so you can at least try it out to see if it would serve your purpose and work with your Sims games acceptably or not (some games work better than others, but I've managed to get Rocket League running on my M1 Mini through it).If you have just the base game installed and are trying to install just one add-on packs please read post here for clear setting up a new administrator user account on your Mac and installing the packs using that account as an alternative solution that can sometimes solve the issue. There's a video guide to set up Crossover below if you wish to try it. There's no guarantees they'll run well though. You could also try using Crossover (or maybe free alternatives like WineskinServer, or PlayOnMac on an Intel Mac) to install Steam in a Wine Bottle and then try The Sims games in that. If your MacBook Pro is an Intel model then using Bootcamp to install Windows is likely to be your best option to run them through Steam. According to the applegamingwiki, they work OK via Rosetta on M1 Macs if your MacBook Pro is an Apple Silicon one. That's a shame given you've bought them already at some point on Steam. If you're really keen to play The Sims and don't mind paying for them again then Sims 3 & 4 are both available for Mac via EA's Origin store.

Sims 3 origin mac