over 1 year ago - TinyWiking - Direct link
Found two threads on Steam about this, my guess is that it's something on your PC causing the issue:

steamcommunity.com

[SOLVED] Unable to launch eu4 :: Steam for Linux General Discussions

This is my first post here, so I'm terribly sorry if it's in the wrong sub-forum. I need help! I'm trying to run Europa Universalis 4 on Ubuntu 17.10. Installing steam worked just fine, and I can launch the game's own launcher (where you can choose between windowed and fullscreen) - but I'm... steamcommunity.com steamcommunity.com steamcommunity.com

Error on launch of Eu4 :: Europa Universalis IV General Discussions

Setting breakpad minidump AppID = 236850 SteamInternal_SetMinidumpSteamID: Caching Steam ID: 76561198295889861 [API loaded no] Anyone know what going on here? This is confusing me as this randomly started to happen today, now when I try to eu4 it crashes almost instantly... steamcommunity.com steamcommunity.com  
over 1 year ago - TinyWiking - Direct link
Attach the error logs from your Documents folder, they may contain information that can help us crack this.