Lost serial key for Amnesia The Dark Descent cd

[donaldy]

I got this game at an office depot, and tried to play it. I had the cd key and all, and played it. I lost the game for a few months, and found it. I actually played it just once, and turned the game off after that. The next day, i tried to play it, but it asked for my cd key. I looked inside of the disc case, and there isn't any cd key there. Is it possible for me to find the cd key within the game files, or do i have to buy the game again? Like i said, I got the game from an office depot. [/font]