EA_Tom over at Answers HQ has posted that Origin in-game will no longer function in Mojave. This is due to the increased functionality in the macOS System Integrity Protection. Tom’s post is here and you should definitely go and read it – https://answers.ea.com/t5/The-Sims-Mac/Origin-In-Game-and-the-macOS-Mojave-Update/m-p/7053780#M14299
There are detailed instructions in the post on how to bypass System Integrity Protection in order to get Origin in-game to work. If you decide to do this you MUST re-enable it again immediately after closing Origin. This OS feature is an integral part of your Mac security. Disabling and re-enabling it requires restarting your Mac.
For the record, I won’t be doing this and will simply have Origin in-game disabled (as I do now). My suggestion would be not to do it either as it can seriously compromise the security of your Mac. Google disabling System Integrity Protection if you want more opinion.
Apple announced last year that macOS 10.13 High Sierra will be the last version of the OS to support 32-bit apps. You can read this article which explains why they are doing this and what it means. Most apps produced in the last few years are 64-bit so there is no cause for concern but for most of our beloved Sims games this most likely means that it will be the end. This does not affect Sims 4 as it is already 64-bit.
If you have updated to macOS 10.13.4 you should have started receiving this notification when launching 32-bit apps:
Until we can download the beta of the next macOS we’re not going to know when 32-bit apps will be rendered completely obsolete. I hoped to wait until we had the beta before posting this but I’ve received so many messages asking about it I thought a post now may help.
The following Sims games are currently 32-bit:
The Sims 2 Super Collection (Aspyr)
The Sims 3 (EA/Maxis)
SimCity 4 (Aspyr)
SimCity 2013 (EA – Origin; Aspyr – Mac App Store)
Sims Medieval (EA/Maxis)
If you would like to carry on playing these titles after 32-bit support is withdrawn there is a workaround. You can install High Sierra on a bootable external drive and install your 32-bit games on this drive. You would then simply boot up your Mac from that drive when you want to play. For those who haven’t done this before, it really is a very simple process – don’t be scared! I will upload a tutorial soon showing easy step by step instructions on how to do this.
Aspyr have announced that they hope to update their 32-bit games to 64-bit so they are still playable on future releases of macOS. You can read their support statement here, together with a full list of affected titles.
EA have yet to confirm or deny whether they will update their titles.
If you would like to see whether your apps are 32-bit or 64-bit read Apple’s article for instructions on finding the info in System Report. You can also check when the app is running by opening Activity Monitor:
If you are running macOS Sierra 10.12, or later, on your Mac and have iCloud Drive enabled then you may be having an issue with your saves. Is the game like new again every time you start it up and all your previous progress is gone? This will be because when you set up Sierra – whether as an upgrade, brand new install, or set up a new Mac – you will have been prompted to set up iCloud Drive. If you just ploughed forwards without reading the prompts, accepting everything the setup assistant was asking you (god knows we all do!) you will have set up your iCloud preferences to move your Documents and Desktop folders to iCloud. So every time your game loads it is recreating a brand new Sims 4 user data folder because it cannot find the original.
You can get round this by going into System Preferences > iCloud > iCloud Drive then click on the Options button and uncheck the box next to Desktop & Documents Folders:
This means that your Documents folder will stay localised on your Mac and not be pushed to the cloud. Your game will then happily be able to load your previous save from your Documents > Electronic Arts > The Sims 4 folder.
The following links explain iCloud Drive in more detail: