I'm very sorry for the miss-information.
The news for the English retail release says "Comes with free Imperial Edition upgrade, a Steam AND Gog.com key for the same price as regular digital edition.", which to me really sounds like there are 2 keys in addition to the DVD version, not that the DVD version is Steam and there is a code for the DRM free version from GOG. I have not seen it explicitly stated anywhere that the retail version is Steam, and as far as I have seen everyone else made the same assumption that I did.
hope the Game is worth all the Trouble.
I hope so, as well.
Check your messages (click 'My Stuff' in the top menu bar, then 'Messages').