If you are trying to convert your game to English, the localization.txt file is part of a larger manual process. Simply changing the text inside the file is rarely enough; you must also have the corresponding English asset files. Change Russian to English: Call of Duty - Black Ops
: Players in certain territories often find their game locked to a local language with no official option in the Steam menu to change it to English.
At its core, localization.txt is a simple, human-readable document stored in the game's main directory. It contains a single line of text—typically just the word "russian," "english," "german," or another supported language—that tells the game engine which language assets to load from the "zone" and "main" folders. Why Players Seek the English Version
Many players find themselves needing a specific "English Localization.txt" for two primary reasons: