HGL
xenogeneic-maroon
Cities Skylines not launching on mac after a day passed
So yesterday I installed Epic Games' version of Cities Skylines (only compatible on windows), the game launched correctly.
Today is another story, the game will crash in a few seconds (GUI won't even show up). I downloaded Dotnet48 as I saw from another post here related to macOS from plaqueboichris, the same error is still happening (from before dotnet installation).
It's related to dcomp.dll.DCompositionCreateDevice3 and I am using Whisky - 2.5.0-0 in the launcher as the wine version
Solution:
Jump to solution
btw manually changed to the installed game's exe. Probably had to do because it tries to run the installer when you download the game from heroic's launcher.

12 Replies
equal-aqua•5d ago
just out of curiosity, can you switch off whisky and try another wine runner like gameportingtoolkit?
xenogeneic-maroonOP•4d ago
Tried GamePortingToolkit:Latest and showed this error on screen: https://learn.microsoft.com/en-us/dotnet/framework/install/application-not-started?version=(null)&processName=rundll32.exe&platform=0009&osver=5&isServer=0&shimver=4.0.30319.0
Then I tried GPTK System (DX11/DX12 Only) - wine-7.7(Game Porting Toolkit 1.1)
Fix .NET Framework 'This application could not be started' - .NET F...
Learn what to do if you see a 'This application could not be started' dialog box when running a .NET Framework application.
equal-aqua•4d ago
bleh
I know there is a cities skylines macOS version but it’s only available on steam annoyingly enough
xenogeneic-maroonOP•4d ago
I know 😡 😫
genetic-orange•4d ago
hmm, for some reason it it is set to be windows XP
that wont work
go to the game settings > WineCFG and change the windows version to windows 10
or maybe just try on a clean prefix
xenogeneic-maroonOP•4d ago
I installed dxkg on winetricks and was able to skip the missing library from before. But it just recursively prints the same error message and makes my macbook heat a lot, so after a few minutes I killed the process
I've played with that too, because it was set to Windows 7 at some point but didnt work changing to 10 and 11
What's not very clear is why does the first launch (when you have to install the paradox launcher) run well but whenever you shut down the game and try to open it again, it just won't work anymore
Something that may be relevant is whenever I tried to exit the game from within the game, it just freezes (doesn't actually close the game), so I had to kill the process
equal-aqua•4d ago
I think it has to do with being forced to launch the game through paradox’ launcher
I had the same aggravating issue with prison architect
horrendous experience trying to test that
xenogeneic-maroonOP•4d ago
I'm gonna try to run the paradox launcher, changing the alternative exe
equal-aqua•4d ago
give it a shot, let me know
xenogeneic-maroonOP•4d ago
that is if I can find the file
you're the goat fr
thank you so much
Solution
xenogeneic-maroon•4d ago
btw manually changed to the installed game's exe. Probably had to do because it tries to run the installer when you download the game from heroic's launcher.

equal-aqua•4d ago
shnasty little launcher
will keep in mind for future support posts, thanks for being so conversational and thanks for the info!