While Terrorist Takedown 3 was officially released with English language support by City Interactive, players sometimes find the game stuck in a different language due to regional versions or installation settings. Method 1: In-Game Settings
Fortunately, for Terrorist Takedown 3, English is almost always present in the game files; it simply requires the right command to unlock it.
Having trouble switching Terrorist Takedown 3 to English? Try these fixes: check the in-game Language setting, change the game launcher or shortcut options, edit the config file (look for language= or locale= and set to en or en_US), or add a --lang=en flag to the shortcut. If that fails, verify/repair or reinstall via your platform, or look for an English region release or community language patch. Contact support or check the game’s forums if you still can’t get it to display English.
Navigate to HKEY_CURRENT_USER\Software\City Interactive\Terrorist Takedown 3. Look for a string value named Language. Double-click it and change the data value to English. Steam Version Language Settings