It works for me, I had trouble at first but I followed these instructions:
https://bluebellflora.com/how-to-do-a-clean-uninstall-and-reinstall-on-a-mac/
I then re-installed the base game and all ep's & sp's in order of when they came out, some were from disk and some digital downloads off origin. I did NOT do any game updates to the base game or any other ep's or sp's. I updated everything before and it didn't work just said "Unable to start game service initialization failed 0x0175dcbb". So far working fine.
Computer I'm using:
13-Inch Macbook Pro with Retina Display
Processor: 2.6 GHz Intel Core i5
Memory: 8 GB 1600 MHz DDR3
Graphics: Intel Iris 1536 MB
Software: macOS High Sierra, Version 10.13.6
Dated posted: August 31st, 2018
You don't have to reinstall the game and it works fine on High Sierra. I play it regularly and it runs great.
However, newer Macs have a hard time running Sims 3 on the Mac side, so here are some guides to help you get the game going. Please note that MacBook Airs have a lot of trouble running this game and trying to play with Seasons and Pets is almost impossible.
Here are the steps to take to install the game properly along with many Troubleshooting solutions.
