[2022] Cities Skylines NOT launching

I'm afraid we'll need to see the output_log.txt (called player.log on Mac and Linux) to be able to help. As you can't attach it here and it is much too long to post here, I recommend you make a report on our support forum here:

https://forum.paradoxplaza.com/forum/forums/support-bug-reports.879/

The log can be found here:

Windows
\SteamApps\common\Cities_Skylines\Cities_Data\output_log.txt
\CitiesSkylines\Cities_Data\output_log.txt

Mac OS X
Users//Library/Logs/Unity/Player.log

Linux
~/.config/unity3d/Colossal Order/Cities: Skylines/Player.log