need to reset video settings

[Obakemono]

I changed the resolution to some numbers that arent compatible with my monitor, I just get a black screen. I can't go to the options to simply change it since i can't see a thing anymore, where can I go in the game files to change this number back to the way it was before?

 

[Varsity]

Rightclick in Play Games > Properties > Add -window to your Launch Options.

 

[The Dark Elf]

Yup, or just edit/delete the config

 

[giant384]

delete client registry blob in ur steam folder

 

[countuebles]

You can also try to add -autoconfig to the start up options for the game in steam.
Theoretically this should set everything to optimal stettings for your system.