If the game remains in the wrong language despite your settings, you can force it through a configuration file:
Choose your preferred language from the dropdown menu. Steam will likely download a small update with the new language files. 2. The Manual "Fix" (When Steam Fails) how to change language in mafia 2 best
Sometimes the in-game menu defaults to English. You can force the language through launch parameters. If the game remains in the wrong language
If the language won't stick through Steam or the launcher, editing the configuration file is the most reliable "pro" fix. Steam Community Close the game entirely. Navigate to your game's profile folder: how to change language in mafia 2 best