Since Thursday was a Problem. We set the Hungarian Language in Properties, but the Game didn’t became hungarian.
But the Problem is solved. We need edit the user_config.xml file (in Users -> username -> Documents -> MyGames -> StarConflict) and change the “<cl_language val=“ENGLISH” />” line with “<cl_language val=“HUNGARIAN” />”.
The above Solution is good in Steam , but the Launcher rewrite from Hungarian to English.