Game crash on launch, exit code null

[shufflebug360]

Information​

I have disabled all mods​

Yes

Required​

Summary​

Game crash on launch, exit code null

Expected Result​

Game launch

Actual Result​

Game crash with attached error message

Steps to reproduce​

Open game via steam or desktop shortcut, press "play

Platform​

Steam

Game Version​

2025.8

Optional​

Description​

Ï have tired uninstalling and re-installing, I have tried the recommended steps on the error message. New game, never played before and no mods.

Tags​

• Gameplay
• Stability
• User Experience

Attachments​

 

[AndrewT]

Please gather both these two informational files, and attach them here:

...\Steam\steamapps\common\Cities Skylines\Cities Data\output_log.txt

DXDIAG is a program you run from the Windows search box on the task bar. After running it will open a window and start collecting info with a progress bar in the lower-left corner. When it completes click the 'save all information' button and save it to a file then attach that file here.