I was able to install the game from disc and the update via Impulse. The game updates to version "2.02.010 German". There are also localization updates included. The crashes are gone and while the translation still has it's quirks, I would call it bearable.
Hi, if you are comfortable with the English language version, you *can* switch between languages. However, there is no configuration switch in the game or its config files for this (that I am aware of). This can be configured via the registry, instead. The registry path for the language key is: HKEY_LOCAL_MACHINE, Software\Stardock\Drengin.net\GC2EU.
Changing this was the first thing I did after installing the game from disk, long before the patch came out. I then played without localization related crashes or anything, and even finished my then running game before getting the patch.
I have had only a brief glance at the German language version after the patch. There seem to be issues with the encoding for umlaut characters. But I didn't purchase EU for the German localization, just didn't know that impulse accepts Paypal 