over 2 years ago - AndrewT - Direct link
I think this probably is due to your video system with CK3, I'm afraid. Do make sure your Intel video driver and Mesa versions are the very latest.

However why our launcher does not work I do not know. What exactly happens when it tries to start from the Steam PLAY button? Are you then running the games directly from their executable?

Note that CK2 does not use the new launcher, but you are saying it too now fails for you?