FYI if you have problems activating keys ingame

[FRancium34]

I just bought the game, and ran into problems activating the keys after starting it. The DLCs were fine, but I kept getting "is not valid" for the main game key.
A quick search to the developers forum revealed that other people who bought on steam may have ran into the same situation. And the solution is--RESTART THE GAME. Kind of odd, but worked for me as well.

PS.wow starting a new game seems complex, I got a headache just looking through all the options...

[The_Thing]

Game's achievements are now bugged as well. Best thing to do is wait for a patch.

EDIT: Start the game and leave it running.

[Erikose]

Meh on the achievements.
Never got to grips with that system as it seemed to provide no benefit in the main other than saying well done on getting x.y or z.

If they unlock stuff on the other hand then thats a bit depressing but not gamebreaking in the slightest.

Just sayin is all. :)

[x4000]

The achievements are working fine, but you can't use cheats to get achievements in the game. Hope that helps!