After a small search on the internetzzz I’v found a solution for Northgard

export LANG=en_US.UTF-8
cd ~/Library/Application\ Support/Steam/steamapps/common/Northgard/
./osx/run.sh

Solution found in
https://steamcommunity.com/app/466560/discussions/4/1762481957315304358/?ctp=19#c1642039362993831528