Hey,
If you're having issues with the game launching, then it sounds like you have a problem with one of your files for Second Extinction.
The recommended solution for this problem is to try deleting these files associated with Second Extinction
Note: Deleting these will require you to change your previously settings.
Using file explorer, navigate to the following location and delete the "settings.json" file - C:\Users\%USERNAME%\Saved Games\Avalanche Studios\Second Extinction\
Using file explorer, navigate to the following location and delete your "Avalanche Studios" folder - C:\Users\%username%\AppData\Local\
You can see our full guide for how to resolve crashes, game freezing on splash screen, or other problems with Second Extinction here -
https:/...
Read more