Install Heroic.
Log into your gog account in Heroic.
In the Heroic wine manager, check that GE-proton is installed.
Install Stellaris. By default it should install any DLC you have too.
Install Heroic.
Log into your gog account in Heroic.
In the Heroic wine manager, check that GE-proton is installed.
Install Stellaris. By default it should install any DLC you have too.