Cities: Skylines (Steam) - Launching the game failed [Mac]

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acidunicorn

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  • Cities: Skylines
  • Cities: Skylines - After Dark
  • Cities: Skylines - Snowfall
  • Cities: Skylines - Natural Disasters
  • Cities: Skylines - Mass Transit
  • Cities: Skylines - Green Cities
  • Cities: Skylines - Parklife Pre-Order
  • Cities: Skylines - Parklife
  • Cities: Skylines Industries
  • Cities: Skylines - Campus
Describe your issue
Launching the game failed

What is your game version?
2021.3

What expansions do you have installed?
After Dark, Snowfall, Natural Disasters, Mass Transit, Green Cities, Parklife, Industries, Campus, Sunset Harbor

What mods are you using?
Uninstalled all of them

Please explain your issue is in as much detail as possible.
Uninstalled all my mods, steam and all it's content. Re-installed, after pressing play, paradox launcher open, and gives me the error message "launching the game failed" I'm using a Mac Big Sur

Can you replicate the issue? If yes, please explain how you did it.


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AndrewT

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Please try a **clean** reinstall:

- Remove the game from Steam (uninstall)
- Manually delete all these files and folders, if still there:

~/Library/Application Support/Steam/SteamApps/common/Cities_Skylines/
~/Library/Application Support/Steam/userdata/<SteamID>/255710/
~/Library/Application Support/Steam/SteamApps/workshop/content/255710/
~/Library/Application Support/Colossal Order/Cities_Skylines/
(first move the /saves/ folder elsewhere to keep your save games)

- Install the game again and see if it runs now.


If that doesn't help, Please attach this log file here:
~/Library/Logs/Unity/Player.log

To find that file, in Finder do cmd-shift-G to bring up the GOTO box. In there paste ~/Library/ . You will see a /Logs/ folder, and inside that /Unity/ folder. Please attach that file player.log here by dropping it on this support ticket, or use the "Attach file" link here.

Also in Steam please click on Steam-Help-System Info, and paste everything there into a text file and attach that here.