If no one beats me to it, I'll check later today when I get home!
my euro-spanish copy had the the following on the back "playable in english". I don't know about the german version. Example image http://i.ebayimg.com/images/g/YeIAAOSw9GhYjjeI/s-l1600.jpg
I got mine for fairly cheap, its sad to see how expensive and rare it is now. good luck.
Okay, just put the game in and it boots up in English no problem. There's no indication of it on the back of the German box (unlike the Spanish one benna posted) but you are definitely safe with this version! The printed manual is in German only though.
Thx both for the info, there was a guy selling it for €12 over here but afterwards I was too late and he sold it to someone else. Still good to know that both spanish and german versions are playable in english :)
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