I second that, I'm having the same problem.  However mine is with the standard edition retail box copy.  The error message is:

"Product Registration Failed: the email address or serial number you entered is invalid.  Check to make sure that you have entered the correct information.  (ref: 204)"

I entered the serial number in as lower case and when that failed, I tried it in upper case which didn't work either.

Same issue as well.  Standard edition purchased at Best Buy.  Hope there is some kind of recourse to this.

     Im having the problem too. Retail edition. Hope they fix it soon.

If you send an e-mail to the support@stardock.com with your key and user information, I sent one and they are in the process of fixing it so I can register my game.

The same is happening to me, I pre-ordered my copy from Amazon, arrived today..but the freaking thing won't accept the SN: i tried with and without the dashes, both upper case and lower case no go.

Has anyone heard from StarDock on this issue?

I am having the same problem.... what do we do?

Unfortunatly that is coming up with the same error as well.  I almost 99% positive that its on Stardock's end.  Especially when I'm not the only one having the same problem

You can add me to the list as well.  Just purchased the Collectors Edition and says I can't update as the SN or/and email is not Valid!

As much as I understand more and more companies trying to copy protect their products against software pirates, it is becoming more and more frustrating for honest buyers/players as we go trhough loads of crap to tell them "I have a legit copy) only to have a complete fail at the Publishers end.  By now I am sure the Pirates are enjoying their illegal copy while us legal owners can't even play a game we paid for?  Maks no sense and Companies should be on the ball and much fater to repair problems at their end becuase that will turn us away from actually buying games when we get no service.  Sorry for the Rant but it is frustrating when I pay good money for something and get no service in return!!

I guess it's good to see that i'm not the only one experiencing this issue.  Hopefully the more people having this problem the sooner they'll fix it for us.  I did everything i was supposed to do, but they bloody program keeps telling me the serial is invalid :/

I put in a ticket, hopefully that'll work it out.

Thanks again to GPG and stardock for making an awesome game!  Just the single player is a blast!

Registration Failure Victim #3,298,001 here, reporting for duty! Though if the single player game is any accurate judge of my ability, I'm not sure why I'm in such a hurry to have real players kick my butt... still fun tho. Go go Unclean Beast!

Have you contacted support?  If not, please drop an email to support@stardock.com for further help.  If you have already, please provide your support ticket id, and I can look into the issue for you.

How long we have to wait to get a reply of the support? Man we bought this shit and it's not working!!! I want to play it now and not in 3 months!!! So do something or give me my money back!!! for a product which is not working online!