i wrote a little localization system which nilllzz is putting into the game, should be done later today when he updates. if it is in you will have a Localization folder somewhere that contains those tokens files. if you set language to de in your options and make a Tokens_de.dat in that folder it should load it. but it may not, i havent seen the exact code in a day or so. i'll let you know if something major changes, but thats basically it.
we will be adding more tokens as we go, we have to tokenize the map and script strings so they get their strings from the tokens file. once they're in there in english they can be translated to other languages using the same token names
please note that our game renders text with a 'sprite font' this means the game takes a pre set range of characters and renders characters of them as bitmaps, this is just how XNA does it. if your game crashes on a string you are using a character that isnt supported. please make sure that the file is saved in unicode also.
you can make new sprite fonts but i'm not going to go over the specifics of it. docs for it are on MSDN, you make them with xna game studio. if you get a font wokring that can use al your language's characters let me know, i want to support using different fonts per language