If the "Game Settings" tab does not show a language dropdown, ensure your launcher is updated to the latest version. Reinstalling the Paradox Launcher (via Steam’s tools) can fix this.

To change to Russian, you would type: -language=russian

Total conversion mods often include their own translations. After changing the base game language (via Steam), you must also:

If you are asking, "How do I change the language in HOI4?" —you have come to the right place. This guide covers every method, from the in-game launcher to advanced manual file edits and Steam-specific overrides.