You purchased a version of the game locked to Russian, Polish, or Spanish.
Many "highly compressed" versions of the game exclude extra languages to keep the download small. Where to Find the English Language Pack Link
Once you have located and downloaded the English language pack (usually a collection of .forge files), follow these steps:
Before downloading external files, try the official route. This is the safest way to get the files without risking malware.
Sometimes the game still defaults to the old language. You may need to change the language setting in the Windows Registry: Press Win + R , type regedit .
If the official methods don't work, community forums like or the Steam Community Hub often host links to language files uploaded by other players. Look for threads titled "AC Brotherhood English Files" or "Language Switcher."
