If things get glitchy, go to Documents\Paradox Interactive\Hearts of Iron IV\ and delete the shadercache folder and the mod_registry.json file.
Follow the method below based on what you download. how to install mods for cracked hoi4
: Sites like Skymods or GameBanana host many popular HoI4 mods. If things get glitchy
You do not place mods in the game's installation directory. Instead, go to your user documents Hearts of Iron 4 Wiki how to install mods for cracked hoi4
But what if you are using a cracked version of HOI4? You cannot access the Steam Workshop. You cannot use the official Paradox launcher’s download feature. So, how do you get those mods working?