The Czech version is "Text only", so I guess you can install the audio version you prefer most and then activate Czech text ingame. I'd try it with the English version first.

I know that it is available as text only, but I do not know how to enable the czech subtitles. The only thing I can do ingame is to turn on/off them but not change the language.

What the hell?

I have just connected my gamepad and now I see the languages in the options. It was not this case before when i was playing with KB+M only.


Edit:

Ok now I understand. The language of the subtitles can be changed only in the menu BEFORE you start the game. Once the game is started the option is missing. If it would be only grayed out then I would understand it right away, this way I was a bit lost.

Hint to the developers, maybe you could not hide the option while in game, but only disable the ability to change it unles players exit to the main menu.

Yeah I have the same issue.
The language option in game allows me to turn the subtitles on/off. I can change languagee in my library but "czech" is missing from the options.

Is there a way to get the "language" tab in the game to let me select voice and subtitles language? I would like to switch between English/polish voice and English/Czech subtitles.

Hmm, after installing Polish version in Galaxy and then switching back to English one I can now select language of subtitles.
EDIT: Nevermind you can change the language of the subtitles only in the main menu, not when playing the game.