Hi,
please try the following and see if that helps:
Changing settings via the Nvidia control panel (if you are a Nvidia user)
Restart your computer if you already attempted to start the game.
Open up the Nvidia control panel.
Go to “Power Management”, change it to “Highest Performance” instead of “Adaptive” (this can also be set specifically for Battle Brothers instead of using the global setting).
Start Battle Brothers normally.
If that does not solve the issue please send us the log.html to “contact@overhypestudios.com” as the upload does not work with this forum.