To be realistic, language localization is never going to happen for the maps. That would require a lot of work and the great majority of the language used is very easy for someone to learn. The game could be in greek and it wouldn't take long to learn the greek words for "hit", "miss", "sword" and so on. The part of the game that could benefit from localization are things like magic mouths which speak in paragraphs and the adventurer is supposed to respond with key words to be told more. Some of those require a modest amount of language skills and the capability to use localization in specific cases would be helpful. For instance, newbie dungeon would be a perfect candidate for language localization. The effort needed to localize those messages including the trigger words is not beyond the scope of an enthusiastic person if the capability existed in the program.