Re: macOS thread - updated to include 10.15 Catalina
10.14 Mojave
Sims 3
Game is loading and playable but a warning dialogue box comes up the first time it is loaded stating that it will not run in future versions of macOS. This is because Apple are dropping support for 32-bit apps in a future update to the OS:
Sims 4
Game is loading and playable. Unfortunately it is also coming up with a warning dialogue box. It is unclear what this is related to as Sims 4 is 64-bit. Apple have also announced they will be dropping support for OpenGL in favour of Metal which may cause issues.
11/07/18 Update:
Sims 3 and Sims 4 still working after the 3rd dev beta has been released. Still getting error messages for both games although they are now more exact.
Sims 3:
Sims 4: