When selecting the language of the game, two the languages Hindi and Malay are not available, despite being listed in the list of languages in the Content Editor.
Upon further inspection, the translation is also already available and complete within the game files, but just not available for selection.
I presume this is because Steam does not support these two languages, therefore cannot display the languages in their interface. Perhaps the developers should provide an alternative way of setting the game language so that players could actually play the game in these languages.