You should now be able to add translations for any language you like from the web interface.
In order to do so, head over to the component page (for instance https://translate.spooky.games/projects/sacrifices/sacrifices-game) then click on Start new translation.
As of now, we still have to work out how to properly integrate the diacritics specific to the Hungarian language into the game. As such, I thus cannot guarantee this will eventually make it into the game (but clearly it should, once translation is advanced enough).
Thanks a lot for your involvement!