I speak english and it showed a complete different langauge instead of my default langague

For some strange reason, it sets Polish as the default Language. Easy to change to English, in any case.

The game asked me what language I wish to installing I chose English from this form post however I guess I got polish as the default language. How do I change it to English since I do not read polish?

So how do you change it back to English?

After creating/choosing your profile, go to Opcje, and there switch Język from Polski to English. Remember to "zaakceptuj" the changes ;)

Ha, so I'm not the only one who accidentally installed it in "Polski".
Thank you, @Lone_Scout.