If you already have the PC version through Origin the Mac version will also be available to you at no extra cost. The only way to get The Sims 4 for Mac is to download it through Origin. I keep an up to date list of individual pack requirements here. You should also read the specific system requirements for each pack before purchasing as some packs have higher requirements than others. YOU DO NOT NEED TO DOWNLOAD THE LEGACY EDITION IF YOUR MAC IS A 2012 MODEL OR LATER. You will need to run the Legacy Edition of the game. *If your Mac is a 2011 or earlier model it is not Metal compatible. Minimum OS -macOS El Capitan (10.11) Metal compatible*.However, these are the recommended requirements which are more relevant when you start adding in Expansion Packs, Stuff Packs and Game Packs: Online Requirements: Internet Connection required for product activation.Video – NVIDIA GeForce 9600M GT, ATI Radeon HD 2600 Pro or better.Hard Drive – At least 15Gb of free space with at least 1Gb additional space for custom content.CPU – Intel Core 2 Duo 2.4Ghz or better.

Minimum OS – macOS El Capitan (10.11) Metal compatible*.First of all, make sure your Mac meets the minimum requirements:

My sims for mac emulator