[2023] Stellaris Crashing on Launch (MacOSX, multiple clean installs)

I don't know what could cause that, the game runs fine under 13.3.1 (a) for me using the current game patch.

What if you run it from stellaris.app directly from Finder?

wilsong123 said: I did the trick with adding userdir.txt to the app directory, which removes that one error line

No need to do that. That 'error' is just the game's way of detecting if that file is in use, it won't help this problem I am sure.