Copy the folder “xxxx.mod” inside the mod file to the Documents > Paradox Interactive > Hearts of Iron 4 > Mod location. They say : The default settings enable all DLCs you own. EU4 does have one that seems to be working exactly the same, so I tried to copy-paste it into the game files and modify the mods number tag (according to the steamworkshops files) so it fits HOI4 mods I want Select the mods tab from the launcher.
