I can choose Español for Audio and Text in my game. Why does the article say, one needs to download something? My copy is from GOG. --Chick'n'Duck (talk) 18:22, 5 May 2020 (UTC)
Topic on Talk:Star Wars: Jedi Knight II - Jedi Outcast
Steam needs a separate download; GOG includes it.
Maybe it's different for other regions and/or the original retail release. In the USA, however, I can verify the Steam version includes Spanish subtitles. Support is indicated on the Steam store page and can be enabled in the game's properties menu.
Dito for the EU: Sound: DE, EN, FR Interface/Subs: the 3 above + ES and ZH (traditional).
Have you selected in inside the game? Is it a mockup like in GOG (see my other comments here)?
It's not a mockup on Steam. Inside the game, the option uses ES interface/subs and EN sound.
That is, how I changed it now. I assume this as well.
It is a mockup-selection. Everything changes to English, when selected. Or stays in English, if this was selected prior.