how do i change language?

[Misclaims]

how do i change language on this game?

[Primal Fear]

Right click the entry for the game in your library, click "Properties", select in the opening window the "Language" tab and select your desired language.

The game might have to download some files after that and once this possible download is finished you can start the game in your selrcted language. If it doesn't download anything it is either not necessarry or, which is anyways not the case here, the respective game doesn't support for the language tab.