Foreign languages are available in the Epic version, "Test Branch" build. This is a separate game install version than the normal game where we test out new functionality. You will see it as a separate game in your Epic library.

On the "Test Branch" build go into options, Interface and select the language you would like to play the game in.

Please let us know if you have any issues.

Эмм, а что игру заново надо устанавливать тестовую? А вы можете запилить языковой пакет в виде бесплатного DLC? А тестовую версию Вы потом сделаете релизной?  

СПАСИБО ВАМ БОЛЬШОЕ!

Добрава времени суток.

Нащот бесплатного DLC на языки помоемы хорошая идея. Можна 1 DLC на все языки, или по DLC на каждый язык.

Супер. Спасибо. Успеха всем!)

I´m having a minor issue with the german translation, Cancel (i guess?) gets translated to "Euphorisch".

Thank you for the solution. I had a quick look and it seems like it is working in German now.

Thank you a lot.

Hello, I tried to find "Test Branch" build in Epic launcher and I found nothing... Someone could explain how he installed the Epic version on the game with foreign languages ? Thanks in advance

You need the original game to get test version. After getting it, go to your library (test version will be given automatically). It will be in there.

Not found in the menu of the game : 

I found it when I changed the filter 'Installed'

Now, I can play in french but some texts are difficult to read :